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United State Coast Guard
National Maritime Center
Rules of the Road
 
1. (1.2.2.2C-7) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below. In this situation which of the following describes vessel "B"?
(A) vessel B is the stand-on vessel
o (B) vessel B is the give-way vessel
o (C) vessel B is the burdened vessel
o (D) None of the above
 
2. (1.2.2.2D-7) BOTH INTERNATIONAL & INLAND Two vessels are approaching each other near
head-on. What action should be taken to avoid collision?
(A) Both vessels should alter course to starboard.
o (B) Both vessels should alter course to port.
o (C) The vessel making the slower speed should give-way.
o (D) The first vessel to sight the other should give-way.
 
3. (1.3.4.3-38) INTERNATIONAL ONLY When vessels are in sight of one another, what does two
short blasts from one of the vessels mean?
o (A) "I intend to change course to starboard"
o (B) "I intend to change course to port"
o (C) "I am altering my course to starboard"
(D) "I am altering my course to port"
 
4. (1.2.2.1D-11) BOTH INTERNATIONAL & INLAND When is "risk of collision" considered to exist?
o (A) a vessel has a steady bearing at a constant range
(B) there is any doubt that a risk of collision exists
o (C) four vessels are nearby
o (D) a special circumstance situation is apparent
 
5. (1.2.2.3A-16) BOTH INTERNATIONAL & INLAND You are in restricted visibility and hear a fog
signal forward of the beam. Nothing appears on your radar screen. The Rules require which action
to be taken?
o (A) sound two prolonged blasts of the whistle
o (B) stop your engines
o (C) sound the danger signal
(D) slow to bare steerageway
 
6. (1.1.2.2C-1) INLAND ONLY You are approaching a vessel displaying the lights as shown in
illustration D075RR below. What type of situation is this?
o (A) Crossing situation
o (B) Meeting head-on situation
o (C) Special circumstance situation
(D) Overtaking situation
 
7. (1.2.2.2H-30) BOTH INTERNATIONAL & INLAND In a crossing situation on open waters, a sailing
vessel shall keep out of the way of all the following vessels EXCEPT a.
o (A) vessel not under command
o (B) vessel fishing
(C) power-driven vessel approaching on her starboard side
o (D) vessel restricted in her ability to maneuver
 
8. (1.1.5.6-30) INLAND ONLY While underway during the day you sight a small motorboat showing a
flashing blue light. What does the blue light indicate?
o (A) rescue boat
o (B) boat involved in a race
(C) law enforcement boat
o (D) Coast Guard Auxiliary Vessel on regatta patrol
 
9. (1.2.2.2G-10) BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing so as to
involve risk of collision. Which statement is TRUE, according to the Rules?
o (A) The vessel which has the other on her own port side shall keep out of the way.
o (B) The give-way vessel should keep the other vessel to her starboard.
(C) If the stand-on vessel takes action, she shall avoid changing course to port.
o (D) If the give-way vessel takes action, she shall avoid changing course to starboard.
 
10. (1.1.3.11-2) INLAND ONLY Which of the following is TRUE for a vessel of less than 20 meters in
length at anchor at night in a "special anchorage area designated by the Secretary"?
o (A) Must show one white light
o (B) Need show a light only on the approach of another vessel
(C) Need not show any lights
o (D) Must show two white lights
 
11. (1.1.2 .2E-3) INLAND ONLY You are in charge of a power-driven vessel crossing on the Western
Rivers. You must keep out of the way of which vessel?
o (A) Power-driven vessel ascending the river
o (B) Sail vessel ascending the river
o (C) Sail vessel descending the river
(D) All of the above
 
12. (1.2.2.3A-5) BOTH INTERNATIONAL & INLAND You are on watch in the fog. Your vessel is
proceeding at a safe speed when you hear a fog signal ahead of you. The Rules require you to
navigate with caution and take which action if danger of collision exists?
(A) reduce to bare steerageway
o (B) stop your engines
o (C) slow to less than 2 knots
o (D) begin a radar plot
 
13. (1.3.3.5-14) INTERNATIONAL ONLY Which is TRUE of a towing light when the power-driven vessel
is towing alongside?
o (A) It can be white in color
(B) It is not required
o (C) It must be shown at the bow
o (D) It is an all-round light
 
14. (1.1.4.3 -24) INLAND ONLY You are on power-driven vessel "I" and in sight of power-driven vessel
"II" as shown in illustration D036RR below. Vessel "II" sounds one short blast. What action should
you take if you agree?
(A) sound one short blast and hold course and speed
o (B) hold course and speed and sound no signal
o (C) sound the danger signal and slow to moderate speed
o (D) sound one short blast and slow down or turn to starboard
 
15. (1.2.2.1B-1) BOTH INTERNATIONAL & INLAND When shall a proper look-out shall be maintained?
(A) at all times
o (B) only at night
o (C) at night and during restricted visibility
o (D) only during restricted visibility
 
16. (1.1.5.6 -17) INLAND ONLY You are the stand-on vessel in an overtaking situation. The other vessel
is showing an alternately flashing red-and-yellow light. What action should you take?
(A) Stand-on
o (B) Alter course to assist
o (C) Heave to
o (D) Give-way
 
17. (1.1.4.3-13) INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish
to leave her on your starboard side. You may.
(A) attempt to contact her on the radiotelephone to arrange for the passage
o (B) sound five short blasts
o (C) proceed to overtake her without sounding whistle signals
o (D) All of the above
 
18. (1.2.2.2B-2) BOTH INTERNATIONAL & INLAND Two sailing vessels are approaching each other
as shown in illustration D003RR below. Which statement is correct?
o (A) Vessel "I" should stand-on because she has the wind on her port side.
o (B) Vessel "I" should stand-on because she is close-hauled.
(C) Vessel "II" should stand-on because she has the wind on her starboard side.
o (D) Neither vessel is the stand-on vessel because they are meeting head-on.
 
19. (1.3.2.2H-6) INTERNATIONAL ONLY Which vessel shall avoid impeding the safe passage of a
vessel constrained by her draft?
(A) A fishing vessel
o (B) A vessel restricted in her ability to maneuver
o (C) A vessel not under command
o (d) All of the above
 
20. (1.2.2.1F-25) BOTH INTERNATIONAL & INLAND Which is a requirement for a vessel approaching
a narrow channel?
o (A) not overtake any vessels within the channel
o (B) anchor only in the middle of the channel
o (C) keep as close as possible to the edge of the channel on her port side
(D) avoid crossing the channel if it impedes another vessel navigating in the channel
 
21. (1.1.2.2D-4) INLAND ONLY Which is TRUE of a power-driven vessel, bound downstream, when
meeting an upbound vessel on the Western Rivers?
o (A) She shall initiate maneuvering signals.
o (B) She shall propose the manner of passage.
o (C) She has the right of way.
(D) All of the above
 
22. (1.2.2.2H-24) BOTH INTERNATIONAL & INLAND A power-driven vessel is underway and fishing
with trolling lines. Which statement is TRUE?
o (A) it must sound a one prolonged, two short blasts signal in restricted visibility
(B) it must keep out of the way of sailing vessels
o (C) is the stand-on vessel when overtaking power-driven vessels
o (d) All of the above
 
23. (1.2.2.2C-14) BOTH INTERNATIONAL & INLAND Sailing vessels are considered the stand-on
vessel over power-driven vessels, except in which of the following situations?
o (A) in a meeting situation
o (B) in a crossing situation
o (C) on the inland waters of the U.S.
(D) when they are the overtaking vessel
 
24. (1.2.2.2G-15) BOTH INTERNATIONAL & INLAND Which action should be avoided if it becomes
necessary for a stand-on vessel to take action to avoid collision?
o (A) increase speed
o (B) decrease speed
o (C) turn to starboard for a vessel on her own port side
(D) turn to port for a vessel on her own port side
 
25. (1.1.1.3-4) INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters"
includes which of the following?
o (A) the St. Lawrence River to Anticosti Island
o (B) the Great Lakes in their entirety
o (C) U.S. waters out to three miles offshore
(D) the Mississippi River System
 
26. (1.2.2.1F-5) BOTH INTERNATIONAL & INLAND Vessels of less than what length may not impede
the passage of other vessels which can safely navigate only within a narrow channel or fairway?
o (A) 10 meters
(B) 20 meters
o (c) 30 meters
o (D) 40 meters
 
27. (1.1.3.5-11) INLAND ONLY If your tug is pushing a barge ahead at night and it is not a composite
unit, which light(s) should show aft on your vessel?
o (A) A towing light over the stern light
o (B) Two red lights
(C) Two towing lights
o (D) A white stern light
 
28. (1.1.2.1F-6) INLAND ONLY Two power-driven vessels are meeting in a narrow channel on the
Great Lakes as shown in illustration D037RR below. Vessel "A" is downbound with a following
current. Vessel "A" shall do which of the following?
o (A) Initiate the maneuvering signals
o (B) Propose the manner of passage
o (C) Have the right of way
(D) All of the above
 
29. (1.1.4.3-10) INLAND ONLY You are overtaking another power-driven vessel in a narrow channel
and wish to leave her on your starboard side. You may.
o (A) sound four short blasts
o (B) overtake her without sounding whistle signals
o (C) sound one short blast
(D) attempt to contact her on the radiotelephone to arrange for the passage
 
30. (1.2.2.2D-2) BOTH INTERNATIONAL & INLAND Vessel "A" (towing) and vessel "B" are meeting as
shown in illustration D012RR below. In this situation, which statement is TRUE?
o (A) Both vessels should alter course to port and pass starboard to starboard.
o (B) Vessel "A" should hold course while vessel "B" alters course to starboard.
(C) Both vessels should alter course to starboard and pass port to port.
o (D) Vessel "A" is the stand-on in this situation.
 
31. (1.1.3.2-1) INLAND ONLY The masthead light may be located at other than the fore and aft
centerline on which power-driven vessel?
o (A) engaged in fishing
o (B) which has separate sidelights carried on the outboard extremes of the vessel's breadth
(C) less than 12 meters in length
o (D) less than 20 meters in length
 
32. (1.1.4.3-30) INLAND ONLY Maneuvering signals shall be sounded on inland waters by
(A) power-driven vessels overtaking and in sight of one another
o (B) all vessels when meeting, crossing, or overtaking and in sight of one another
o (C) all vessels meeting or crossing at a distance within half a mile of each other and not in sight of
one another
o (D) power-driven vessels crossing at a distance within half a mile of each other and NOT in sight
of one another
 
33. (1.1.2.1F-21) INLAND ONLY When two power-driven vessels are meeting on the Great Lakes,
Western Rivers, or waters specified by the Secretary, where there is a current, which vessel shall
sound the first passing signal?
o (A) Either vessel
o (B) The vessel that is towing regardless of the current
o (C) The vessel going upstream stemming the current
(D) The vessel downbound with a following current
 
34. (1.1.4.3 -25) INLAND ONLY Vessel "A" is power-driven and overtaking power-driven vessel "B" as
shown in illustration D017RR below and will pass without changing course. What signal should
vessel "A" sound?
o (A) one short blast
o (B) no signal
(C) two short blasts
o (D) one prolonged blast
 
35. (1.2.2.2C-1) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing
vessels approaching each other?
o (A) When each is on a different tack, the vessel on the starboard tack shall keep out of the way.
(B) A sailing vessel overtaking another is the give-way vessel.
o (C) A sailing vessel seeing another to leeward on an undetermined tack shall hold her course.
o (d) All of the above
 
36. (1.1.4.3-36) INLAND ONLY If you were coming up on another power-driven vessel from dead astern
and desired to overtake on the other vessel's starboard side, which whistle signal would you sound?
o (A) Two prolonged blasts followed by two short blasts
o (B) Two short blasts
o (C) One prolonged blast
(D) One short blast
 
37. (1.1.4.3-4) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D041RR below and will pass 1/4 mile apart. Which statement is TRUE?
o (A) If a passing agreement is reached by radiotelephone whistle signals are still required.
o (B) Whistle signals must be exchanged in all situations when passing within one half mile.
(C) If a passing agreement is reached by radiotelephone, whistle signals are optional.
o (D) None of the above
 
38. (1.2.2.2C-13) BOTH INTERNATIONAL & INLAND Which statement concerning an overtaking
situation is correct?
o (A) The overtaking vessel must maintain course and speed.
o (B) The overtaking vessel is the stand-on vessel.
(C) The overtaking vessel must keep out of the way of the other.
o (D) Neither vessel is the stand-on vessel.
If choice C is selected set score to 1
 
39. (1.2.2.2G-7) BOTH INTERNATIONAL & INLAND In a crossing situation, a stand-on vessel which is
forced to take action in order to avoid collision with a vessel on her own port side shall, if possible,
avoid which action?
(A) turning to port
o (B) increasing speed
o (C) decreasing speed
o (D) turning to starboard
 
40. (1.1.4.3-49) INLAND ONLY What whistle signal would a power-driven vessel overtaking another in
a narrow channel, and wishing to pass on the other vessel's port side sound?
o (A) one short blast
o (B) two prolonged blasts followed by one short blast
o (C) two prolonged blasts followed by two short blasts
(D) two short blasts
 
41. (1.1.3.7-1) INLAND ONLY Which of the following signals may be exhibited by a vessel trawling in
close proximity to other fishing vessels?
o (A) Two fixed yellow lights in a vertical line
(B) Two white lights in a vertical line
o (C) A red light over a white light in a vertical line
o (D) All of the above
 
42. (1.2.2.2B-3) BOTH INTERNATIONAL & INLAND If a sailing vessel with the wind on the port side
sees a sailing vessel to windward and cannot tell whether the other vessel has the wind on the port
or starboard side, which action shall she take?
o (A) turn to port and come into the wind
o (B) hold course and speed
(C) keep out of the way of the other vessel
o (D) sound the danger signal
 
43. (1.2.2.1E-6) BOTH INTERNATIONAL & INLAND Under the Rules, any vessel may slacken her
speed, stop, or reverse her engines. What should this action accomplish?
o (A) attract the attention of another vessel
o (B) create a crossing situation
(C) allow more time to assess the situation
o (d) All of the above
 
44. (1.2.2.1E-1) BOTH INTERNATIONAL & INLAND A vessel shall slacken her speed, stop, or reverse
her engines, if necessary, to.
o (A) allow more time to assess the situation
o (B) be stopped in an appropriate distance
o (C) avoid collision
(D) All of the above
 
45. (1.2.2.2G-5) BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of
collision, the stand-on vessel must take which action?
o (A) sound a distress signal
o (B) hold course and speed until the danger of collision is past and clear
(C) assist in taking whatever action is necessary to avoid collision
o (D) abandon ship
 
46. (1.1.4.3-69) INLAND ONLY You are proceeding up a channel in Chesapeake Bay and are meeting
an outbound vessel. There is no current. You MUST.
o (A) keep to that side of the channel which is on your vessel's port side
o (B) stop your vessel, letting the outbound vessel sound the signals for meeting and passing
(C) propose or answer one or two blast whistle signals given by the other vessel if passing within
half a mile
o (D) give the outbound vessel the right-of-way
 
47. (1.1.3.8-1) INLAND ONLY If a towing vessel and her tow are severely restricted in their ability to
deviate from their course, lights in addition to the towing identification lights must be shown. These
additional lights shall be shown if the tow is which of the following?
o (A) towed astern
o (B) pushed ahead
o (C) towed alongside
(D) All of the above
 
48. (1.2.2.1G-4) BOTH INTERNATIONAL & INLAND When may a vessel enter a traffic separation
zone?
o (A) in an emergency
o (B) to cross the traffic separation scheme
o (C) to engage in fishing within the zone
(D) All of the above
 
49. (1.2.2.1B-2) BOTH INTERNATIONAL & INLAND When does the rule regarding look-outs apply?
o (A) between dusk and dawn
o (B) in heavy traffic
o (C) in restricted visibility
(D) All of the above
 
50. (1.1.4.3 -45) INLAND ONLY While underway and in sight of another power-driven vessel forward of
your beam, more than 0.5 mile away, you put your engines full speed astern. Which statement
concerning whistle signals is TRUE?
(A) You need not sound any whistle signals.
o (B) You must sound three short blasts on the whistle.
o (C) You must sound one blast if backing to starboard.
o (D) You must sound whistle signals only if the vessels are meeting.
 
51. (1.2.2.2E-6) BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are crossing as shown in
illustration D026RR below. Which statement is TRUE?
(A) Vessel "A" must keep clear of vessel "B".
o (B) The vessels should pass starboard to starboard.
o (C) Vessel "B" should alter course to the right.
o (D) Vessel "B" should pass under the stern of vessel "A".
 
52. (1.1.3.5-1) INLAND ONLY What must a partially submerged object towed by a vessel show during
the day?
o (A) diamond shape only when the length of the tow exceeds 200 meters in length
o (B) black ball only when the length of the tow exceeds 200 meters in length
o (C) black ball
(D) diamond shape regardless of length of the tow
 
53. (1.2.2.1B-3) BOTH INTERNATIONAL & INLAND When navigating in thick fog with the radar on,
which action should you take?
o (A) keep the radar on the shortest available range for early detection of approaching vessels
o (B) secure the sounding of fog signals until a vessel closes within five miles
(C) station a look-out as low down and far forward as possible
o (D) station the look-out in the wheelhouse to keep a continuous watch on the radar
 
54. (1.2.2.2G-4) BOTH INTERNATIONAL & INLAND You are in charge of a stand-on vessel in a
crossing situation. The other vessel is 1.5 miles to port and you believe that risk of collision exists.
What action should you take?
o (A) hold course and speed until the point of extremis, and then sound the danger signal, taking
whatever action will best avoid collision
o (B) immediately sound the danger signal, and change course
(C) take avoiding action by maneuver alone only after giving the give-way vessel time to take
action, and determining that her action is not appropriate
o (D) take avoiding action immediately upon determining that risk of collision exists
 
55. (1.3.2.2E-2) INTERNATIONAL ONLY Vessels "A" and "B" are in a crossing situation on the high
seas as shown in illustration D014RR below. Vessel "B" sounds one short blast. What is the proper
action for vessel "A" to take?
(A) Hold course and speed
o (B) Sound danger signal
o (C) Answer with one blast and keep clear of vessel "B"
o (D) Answer with one blast and hold course and speed
 
56. (1.1.4.3-38) INLAND ONLY Two vessels are in a starboard to starboard meeting situation and will
pass well clear approximately 1/4 mile apart. Which action should each vessel take?
o (A) Sound a one blast whistle signal and turn to starboard.
o (B) Maintain course and sound no signal.
o (C) Sound a three blast whistle signal and turn to port.
(D) Sound a two blast whistle signal and maintain course.
 
57. (1.2.2.1D-1) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of
collision?
o (A) The stand-on vessel must keep out of the way of the other vessel when risk of collision exists.
(B) Risk of collision may exist when the compass bearing of an approaching vessel is changing
appreciably.
o (C) Risk of collision always exists when two vessels pass within one mile of each other.
o (D) Risk of collision always exists when the compass bearing of an approaching vessel changes
appreciably.
 
58. (1.2.2.1C-1) BOTH INTERNATIONAL & INLAND When must a vessel proceed at a safe speed?
(A) at all times
o (B) during darkness
o (C) in congested waters
o (D) in restricted visibility
 
59. (1.1.2.2C-3) INLAND ONLY You are on vessel "A", and vessel "B" desires to overtake you on your
starboard side as shown in illustration D031RR below. After the vessels have exchanged one blast
signals what action should you take?
o (A) Alter course to the left to give vessel "B" more sea room
o (B) Alter course to the right to give vessel "B" more sea room
(C) Hold course and speed
o (D) Slow your vessel until vessel "B" has passed
 
60. (1.2.2.1C-2) BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be
taken into account when determining safe speed. Which is one of the factors?
o (A) temperature
o (B) maximum speed of your vessel
o (C) radio communications that are available
(D) current
 
61. (1.3.1.1-1) INTERNATIONAL ONLY You are on a vessel that cannot comply with the spacing
requirement for masthead lights. What is required in this situation?
o (A) An all-round light should be substituted for the after masthead light and the stern light.
o (B) The vessel must be altered to permit full compliance with the rules.
(C) The vessel's lights must comply as closely as possible, as determined by her government.
o (D) The vessel must carry only the lights that comply with the rules; the others may be omitted.
 
62. (1.1.5.6-25) INLAND ONLY The special light for a vessel engaged in public safety activities must
meet which of the following requirements?
(A) not interfere with the visibility of the navigation lights
o (B) not be visible more than 22 1/2 degrees abaft the beam
o (C) be on top of the mast or highest structure of the vessel
o (D) be as far forward as possible
 
63. (1.2.2.1F-1) BOTH INTERNATIONAL & INLAND You are crossing a narrow channel on your 15-
meter vessel. A deeply loaded cargo vessel is proceeding down the channel as shown in illustration
D040RR below. In this situation, which statement is correct?
o (A) You are the stand-on vessel because you are less than 65 feet in length.
o (B) The cargo vessel is the stand-on vessel because she is running with the current.
o (C) The Rule of Special Circumstances applies in this case.
(D) You cannot impede the passage of the cargo vessel.
 
64. (1.2.2.1E-8) BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing
courses. She is about one mile distant and is on your starboard bow. You believe she will cross
ahead of you but she sounds a whistle signal of five short blasts. Which action should you take?
o (A) initiate a passing signal that will allow for a half mile clearance
o (B) answer the signal and hold course and speed
(C) make a large course change, and slow down if necessary
o (D) reduce speed slightly
 
65. (1.3.2.2E-3) INTERNATIONAL ONLY You are approaching another vessel and will pass starboard
to starboard without danger if no course changes are made. What action should you take?
o (A) Change course to the right and sound one blast
o (B) Hold course and sound a two blast whistle signal
o (C) Hold course and sound two prolonged and two short blasts
(D) Hold course and sound no whistle signal
 
66. (1.1.4.3-57) INLAND ONLY You are overtaking another power-driven vessel in a narrow channel,
and you wish to overtake on the other vessel's port side. What whistle signal would you sound?
o (A) two prolonged blasts followed by one short blast
(B) two short blasts
o (C) one short blast
o (D) two prolonged blasts followed by two short blasts
 
67. (1.3.1.1-2) INTERNATIONAL ONLY Where do the International Rules of the Road apply?
o (A) To all waters which are not inland waters
(B) Upon the high seas and connecting waters navigable by seagoing vessels
o (C) Only to waters where foreign vessels travel
o (D) Only to waters outside the territorial waters of the United States
 
68. (1.2.2.2C-26) BOTH INTERNATIONAL & INLAND While underway at night you are approaching a
vessel from astern. Which light(s) would you expect to see?
(A) A stern light only
o (B) Sidelights only
o (C) Both sidelights and the stern light
o (D) Two masthead lights
 
69. (1.2.2.3A-7) BOTH INTERNATIONAL & INLAND Which statement concerning maneuvering in
restricted visibility is FALSE?
(A) A vessel which hears a fog signal forward of her beam shall stop her engines.
o (B) A vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall
reduce her speed to bare steerageway.
o (C) If a vessel determines by radar that a close-quarters situation is developing, she shall take
avoiding action in ample time.
o (D) A vessel which hears a fog signal forward of the beam shall navigate with caution.
 
70. (1.2.2.3A-1) BOTH INTERNATIONAL & INLAND The steering and sailing rules for vessels in
restricted visibility apply to vessels.
o (A) in sight of one another in fog
o (B) only if they have operational radar
o (C) only if they are showing special purpose lights
(D) navigating in or near an area of restricted visibility
 
71. (1.2.2.1F-23) BOTH INTERNATIONAL & INLAND When underway in a channel, where should you
keep your vessel as is safe and practical?
o (A) middle of the channel
o (B) side of the channel that has the widest turns
o (C) port side of the channel
(D) starboard side of the channel
 
72. (1.2.2.3A-2) BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel which detects by
radar alone the presence of another vessel shall determine if a close-quarters situation is developing
or risk of collision exists. If so, she shall.
o (A) when taking action, make only course changes
o (B) sound the danger signal
(C) avoid altering course toward a vessel abaft the beam
o (d) All of the above
 
73. (1.1.4.3-26) INLAND ONLY Two power-driven vessels are meeting on a clear day and will pass less
than half a mile apart. Which is TRUE in this situation for whistle signals?
o (A) must be exchanged
o (B) must be exchanged only if course changes are necessary by either vessel
(C) must be exchanged if passing agreements have not been made by radio
o (D) may be exchanged
 
74. (1.2.2.1E-7) BOTH INTERNATIONAL & INLAND What is a requirement for any action taken to
avoid collision?
(A) The action must be positive and made in ample time.
o (B) When in sight of another vessel, any action taken must be accompanied by sound signals.
o (C) The action taken must include changing the speed of the vessel.
o (d) All of the above
 
75. (1.2.2.2H-37) BOTH INTERNATIONAL & INLAND Which vessel should NOT impede the navigation
of a power-driven vessel?
o (A) A vessel engaged in fishing
(B) A wing in ground craft when taking off or landing
o (C) A sailing vessel
o (D) A vessel not under command
 
76. (1.2.2.1C-3) BOTH INTERNATIONAL & INLAND When is your vessel travelling at a "safe speed" as
defined in the COLREGS?
o (A) when you are traveling slower than surrounding vessels
o (B) when you can stop within your visibility range
o (C) when no wake comes from your vessel
(D) when you can take proper and effective action to avoid collision
 
77. (1.2.2.2E-4) BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown
in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. Vessel "B" is which
of the following in this scenario?
o (A) give-way vessel
o (B) overtaking vessel
(C) stand-on vessel
o (D) burdened vessel
 
78. (1.2.2.1F-16) BOTH INTERNATIONAL & INLAND Your 15-meter tug is underway and crossing a
deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which
statement is TRUE concerning this situation?
o (A) The container vessel is the stand-on as it is the larger vessel.
(B) You are not to impede the safe passage of the container vessel in the channel.
o (C) You should maintain course and speed.
o (D) None of the above
 
79. (1.2.2.1C-4) BOTH INTERNATIONAL & INLAND The Navigation Rules state that a vessel shall be
operated at a safe speed at all times so that she can be stopped within.
o (A) 1/2 the distance of visibility
o (B) the distance that it would require for the propeller to go from full ahead to full astern
o (C) the distance of visibility
(D) a distance appropriate to the existing circumstances and conditions
 
80. (1.1.4.3-19) INLAND ONLY Which statement is TRUE concerning a passing agreement made by
radiotelephone?
o (A) Such an agreement is prohibited by the Rules.
o (B) A vessel which has made such an agreement must also sound whistle signals.
o (C) Whistle signals must still be exchanged when passing within half a mile of each other.
(D) If agreement is reached by radiotelephone, whistle signals are optional.
 
81. (1.2.2.2H-23) BOTH INTERNATIONAL & INLAND A sailing vessel shall keep out of the way of all of
the following with the exception of which vessel?
o (A) restricted in her ability to maneuver
o (B) engaged in fishing
o (C) not under command
(D) engaged on pilotage duty
 
82. (1.2.2.2H-21) BOTH INTERNATIONAL & INLAND Of the vessels listed, which must keep out of the
way of all the others?
o (A) A vessel not under command
o (B) A vessel engaged in fishing
o (C) A vessel restricted in her ability to maneuver
(D) A sailing vessel
 
83. (1.2.2.1C-5) BOTH INTERNATIONAL & INLAND In determining "safe speed", all of the following
must be taken into account EXCEPT the.
o (A) draft of your vessel
o (B) maneuverability of your vessel
(C) maximum horsepower of your vessel
o (D) presence of background lights at night
 
84. (1.1.4.3 -61) INLAND ONLY A power-driven vessel intends to overtake another power-driven vessel
on the overtaken vessel's port side. Which whistle signal should be sounded in order to state this
intention?
o (A) 2 prolonged and 1 short blasts
o (B) 2 prolonged and 2 short blasts
(C) 2 short blasts
o (d) 1 short blast
 
85. (1.1.5.6-19) INLAND ONLY Which of the following may be displayed by a law enforcement boat?
o (A) flashing red light
o (B) flashing amber light
o (c) blue flag
(D) flashing blue light
 
86. (1.2.2.1C-6) BOTH INTERNATIONAL & INLAND Which factor is listed in the Rules as one which
must be taken into account when determining safe speed?
(A) The maneuverability of the vessel
o (B) The construction of the vessel
o (C) The experience of vessel personnel
o (D) All of the above must be taken into account.
 
87. (1.2.2.2B-6) BOTH INTERNATIONAL & INLAND You are under sail making 5 knots. The apparent
wind is broad on the port beam at 10 knots. You see another sailing vessel dead ahead on a
meeting course. What action is correct?
(A) You must keep out of the way of the other vessel.
o (B) Only the other vessel must maneuver to avoid collision.
o (C) Both vessels must maneuver to avoid collision.
o (D) You are only required to maneuver if collision cannot be avoided by maneuver of the other
vessel.
 
88. (1.2.2.1G-10) BOTH INTERNATIONAL & INLAND There are vessels which, to the extent necessary
to carry out their work, do not have to comply with the rules regarding traffic separation schemes.
Which is one of these vessels?
o (A) engaged in fishing in a traffic lane
(B) servicing a submarine cable
o (C) engaged on pilotage duty
o (D) towing another
 
89. (1.1.3.7-2) INLAND ONLY Vessels engaged in fishing may show the additional signals as described
in Rule 26 when they are in which of the following situations?
o (A) fishing in a traffic separation zone
o (B) trolling
(C) in close proximity to other vessels engaged in fishing
o (D) in a narrow channel
 
90. (1.2.2.1C-7) BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be
taken into account when determining safe speed. Which factors are included?
o (A) temperature
o (B) aids to navigation that are available
(C) state of wind, sea, and current, and the proximity of navigational hazards
o (D) maximum attainable speed of your vessel
 
91. (1.1.3.8-4) INLAND ONLY You see the lights shown in illustration D085RR below while proceeding
in a channel. Where should you pass?
(A) A
o (B) B
o (C) C
o (D) D
 
92. (1.2.2.1C-8) BOTH INTERNATIONAL & INLAND The rules require which factor to be taken into
account when determining safe speed?
o (A) The construction of the vessel
o (B) The experience of the vessel's crew
(C) The location of vessels detected by radar
o (D) All of the above
 
93. (1.1.2.2E-4) INLAND ONLY Your vessel is crossing a river on the Great Lakes System. A power-
driven vessel is ascending the river, crossing your course from port to starboard. Which statement is
TRUE?
(A) The vessel ascending the river has the right of way.
o (B) Your vessel has the right of way, but you are directed not to impede the other vessel.
o (C) You are required to propose the manner of passage.
o (D) The other vessel must hold as necessary to allow you to pass.
 
94. (1.3.1.3-6) INTERNATIONAL ONLY Which statement is TRUE concerning a vessel "constrained by
her draft"?
o (A) She may be a vessel being towed.
(B) She must be a power-driven vessel.
o (C) She is not under command.
o (D) She is hampered because of her work.
 
95. (1.1.4.3-44) INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in
a narrow channel. You wish to overtake her on her starboard side. Which whistle signal should you
sound?
o (A) one prolonged and one short blast
o (B) two prolonged blasts followed by one short blast
o (C) at least five short blasts
(D) one short blast
 
96. (1.2.2.1D-10) BOTH INTERNATIONAL & INLAND In which situation would risk of collision definitely
exist?
o (A) A vessel is 22 degrees on your port bow, range increasing, bearing changing slightly to the
right.
o (B) A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the
right.
o (C) A vessel is 22 degrees abaft your port beam, range increasing, bearing is constant.
(D) A vessel is on your starboard quarter, range decreasing, bearing is constant.
 
97. (1.2.2.1D-2) BOTH INTERNATIONAL & INLAND Risk of collision may exist.
o (A) if you observe both sidelights of a vessel ahead for an extended period of time
o (B) even when an appreciable bearing change is evident, particularly when approaching a vessel
at close range
o (C) if the compass bearing of an approaching vessel does NOT appreciably change
(D) All of the above
 
98. (1.2.2.1D-5) BOTH INTERNATIONAL & INLAND You are underway in thick fog. You have not
determined if risk of collision exists. Which statement is TRUE?
(A) Your speed must be reduced to bare steerageway.
o (B) The radar should always be kept on a short-range scale.
o (C) A look-out is not required if the radar is on.
o (D) Fog signals are only required when a vessel is detected by radar.
 
99. (1.2.2.1F-7) BOTH INTERNATIONAL & INLAND Two vessels are meeting in a narrow channel as
shown in illustration D037RR below. Vessel "A" is a sailing vessel. Vessel "B" is a power-driven
vessel which can safely navigate only within the channel. Vessel "B" sounds the danger signal.
Vessel "A" shall take what action?
o (A) sound one prolonged followed by two short blasts
o (B) have the right of way
(C) not impede the passage of vessel "B"
o (D) maintain course and speed
 
100. (1.2.2 .2H-29) BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep
out of the way of which vessel(s)?
o (A) restricted in her ability to maneuver
o (B) engaged in fishing
o (C) not under command
(D) All of the above
 
101. (1.2.2.1D-3) BOTH INTERNATIONAL & INLAND You are approaching another vessel and are
not sure whether danger of collision exists. What must you assume?
o (A) the other vessel is also in doubt
(B) there is risk of collision
o (C) you are the give way vessel
o (D) All of the above are correct.
 
102. (1.2.2.1D-12) BOTH INTERNATIONAL & INLAND In which situation does a risk of collision
exists?
o (A) A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the
right.
o (B) A vessel is 22 abaft your port beam, range increasing, bearing is constant.
o (C) A vessel is 22 on your port bow, range increasing, bearing changing slightly to the right.
(D) A vessel is on your starboard quarter, range decreasing, bearing is constant.
 
103. (1.2.2.1D-4) BOTH INTERNATIONAL & INLAND Risk of collision may be deemed to exist under
which of the following situations?
o (A) if you observe both sidelights of a vessel ahead for an extended period of time
o (B) even when an appreciable bearing change is evident, particularly when approaching a vessel
at close range
o (C) if the compass bearing of an approaching vessel does NOT appreciably change
(D) All of the above
 
104. (1.2.2.1D-8) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel
equipped with operational radar?
(A) She must use this equipment to obtain early warning of risk of collision.
o (B) The use of radar excuses a vessel from the need of a look-out.
o (C) The radar equipment is only required to be used in restricted visibility.
o (D) The safe speed of such a vessel will likely be greater than that of vessels without radar.
 
105. (1.1.3.11-4) INLAND ONLY Which light(s) shall be shown at night on a moored barge which
reduces the navigable width of any channel to less than 80 meters?
o (A) A red light placed on the two corners farthest from the bank
o (B) Two yellow lights in a vertical line at the stern
(C) Two unobstructed all-round white lights
o (D) A red light placed on all four corners
 
106. (1.1.4.3 -6) INLAND ONLY You are crossing the course of another vessel which is to your
starboard. You have reached an agreement by radiotelephone to pass astern of the other vessel.
You MUST.
o (A) change course to starboard
o (B) sound one short blast
o (C) sound two short blasts
(D) None of the above
 
107. (1.1.4.3-34) INLAND ONLY You are aboard the stand-on vessel in a crossing situation. You
sound a one blast whistle signal. The give-way vessel answers with a two blast whistle signal. You
should sound the danger signal and take what action?
o (A) maneuver around the stern of the other vessel
o (B) come around sharply to port
(C) take precautionary action until a safe passing agreement is made
o (D) maintain course and speed as you are the stand-on vessel
 
108. (1.2.2.1D-6) BOTH INTERNATIONAL & INLAND You see another vessel approaching, and its
compass bearing does not significantly change. What does this indicate?
o (A) you are the stand-on vessel
(B) risk of collision exists
o (C) a special circumstances situation exists
o (D) the other vessel is dead in the water
 
109. (1.2.2.1D-13) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of
collision?
(A) Proper use shall be made of radar equipment to determine risk of collision.
o (B) Risk of collision must be determined before any action can be taken by a vessel.
o (C) Risk of collision exists if the vessels will pass within half a mile of each other.
o (D) Risk of collision never exists if the compass bearing of the other vessel is changing.
 
110. (1.1.1.3-2) INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland
Waters" includes which of the following?
o (A) any lakes within state boundaries
(B) the Great Lakes on the United States side of the boundary
o (C) the coastline of the United States out to one mile offshore
o (D) the waters surrounding any islands of the U.S.
 
111. (1.2.2.2H-17) BOTH INTERNATIONAL & INLAND On open waters, a power-driven vessel shall
keep out of the way of which of the following?
(A) a sailing vessel
o (B) a seaplane on the water
o (C) a vessel that is overtaking her
o (D) a vessel on her port side that is crossing her course
 
112. (1.1.4.3-17) INLAND ONLY When shall whistle signals be exchanged by power-driven vessels in
sight of one another?
o (A) doubt exists as to which side the vessels will pass on
o (B) course changes are necessary to pass
o (C) passing agreements have been made by radio
(D) they are passing within half a mile of each other
 
113. (1.1.2.1F-22) INLAND ONLY A power-driven vessel proceeding downstream in a narrow channel
on the Western Rivers sights another power-driven vessel moving upstream. Which vessel has the
right of way?
o (A) The vessel sounding the first whistle signal
o (B) The vessel moving upstream against the current
(C) The vessel moving downstream with a following current
o (D) The vessel located more towards the channel centerline
 
114. (1.1.3.8-3) INLAND ONLY While underway you sight the lights shown in illustration D081RR
below with the yellow lights flashing. The lights displayed indicate which of the following?
o (A) vessel aground
(B) dredge pipeline
o (C) mine clearance vessel
o (D) vessel not under command
 
115. (1.1.4.3-39) INLAND ONLY Two power-driven vessels are crossing within a half a mile of each
other as shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle, what
does this signal mean?
(A) "I intend to leave you on my port side"
o (B) "I intend to leave you on my starboard side"
o (C) "I am altering my course to starboard"
o (D) None of the above
 
116. (1.2.2.2H-8) BOTH INTERNATIONAL & INLAND The Rules make which statement about a
seaplane?
o (A) it shall proceed at a slower speed than surrounding vessels
(B) in general, keep well clear of all vessels
o (C) when making way, show the lights for a vessel not under command
o (D) it shall not be regarded as a vessel
 
117. (1.2.2.1D-7) BOTH INTERNATIONAL & INLAND You are watching another vessel approach and
her compass bearing is not changing. What does this indicate?
o (A) a special circumstances situation exists
o (B) the other vessel is dead in the water
(C) a risk of collision exists
o (D) you are the stand-on vessel
 
118. (1.2.2.1G-6) BOTH INTERNATIONAL & INLAND Which is TRUE for a vessel in a traffic
separation scheme that is joining a traffic lane from the side?
(A) the vessel should enter at as small an angle as possible to the traffic flow
o (B) the vessel should never enter the traffic lane except at termination points
o (C) the vessel should enter as nearly as practical at right angles to the general direction of traffic
flow
o (D) the vessel should only enter in the case of an emergency or to engage in fishing within the
zone
 
119. (1.2.2.1F-10) BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in an 18-
meter tug when you sight a loaded tankship off your port bow coming up the channel. Which
statement is correct?
o (A) The tankship is the stand-on vessel because it is in the channel.
o (B) The tankship is the stand-on vessel because it is the larger of the two vessels.
(C) You cannot impede the safe passage of the tankship.
o (D) Neither vessel is the stand-on vessel because the tankship is crossing.
 
120. (1.2.2.1D-9) BOTH INTERNATIONAL & INLAND Risk of collision exists when an approaching
vessel is observed under which situation?
o (A) increasing range and bearing
(B) generally steady bearing and decreasing range
o (C) decreasing bearing only
o (D) generally steady range and increasing bearing
 
121. (1.2.2.1D-17) BOTH INTERNATIONAL & INLAND Which procedure(s) shall be used to
determine risk of collision?
o (A) Long-range radar scanning
o (B) Systematic observation of objects detected by radar
o (C) Watching the compass bearing of an approaching vessel
(D) All of the above
 
122. (1.2.2. 1D-18) BOTH INTERNATIONAL & INLAND To determine if risk of collision exists, a vessel
which is fitted with radar must use which observation technique(s)?
o (A) radar scanning
o (B) radar plotting
o (C) compass bearings
(D) All of the above
 
123. (1.2.2.2H-38) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning wing in
ground (WIG) craft when taking off, landing and in flight?
o (A) In situations where a risk of collision exists, a WIG should always give way.
o (B) A WIG shall exhibit an all-round flashing yellow light.
(C) A WIG shall keep well clear of all vessels and avoid impeding their navigation.
o (D) A WIG should show the lights for a vessel restricted in her ability to maneuver.
 
124. (1.2.2.1D-14) BOTH INTERNATIONAL & INLAND When do the Rules state that risk of collision
shall be deemed to exist?
(A) if the bearing of an approaching vessel does not appreciably change
o (B) whenever two vessels approach from opposite directions
o (C) if one vessel approaches another so as to be overtaking
o (D) whenever a vessel crosses ahead of the intended track of another vessel
 
125. (1.2.2.1D-15) BOTH INTERNATIONAL & INLAND When do the Rules state that risk of collision
shall be deemed to exist?
(A) if the bearing of an approaching vessel does not appreciably change
o (B) whenever two vessels are on opposite courses
o (C) if one vessel approaches another so as to be overtaking
o (D) whenever a vessel crosses ahead of the intended track of another vessel
 
126. (1.2.2.1E-4) BOTH INTERNATIONAL & INLAND When action to avoid a close-quarters situation
is taken, a course change alone may be the most effective action provided that.
(A) it is a large course change
o (B) the course change is to starboard
o (C) it is done in a succession of small course changes
o (D) it is NOT done too early
 
127. (1.1.4.3-58) INLAND ONLY The stand-on vessel in a crossing situation sounds one short blast of
the whistle. This means that the vessel.
o (A) is changing course to starboard
o (B) intends to hold course and speed
o (C) is changing course to port
(D) intends to leave the other on her port side
 
128. (1.1.4.3-2) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D029RR below and will pass 1/4 mile apart. Which statement is TRUE?
o (A) The vessels must exchange two blast whistle signals and pass port to port.
(B) The vessels may reach agreement by radiotelephone and sound no whistle signal.
o (C) The vessels must exchange one blast whistle signals and pass starboard to starboard
o (D) Both vessels should continue on course and pass without sounding any whistle signals.
 
129. (1.2.2.1G-5) BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic
separation scheme which.
(A) separates traffic proceeding in one direction from traffic proceeding in the opposite direction
o (B) contains all the traffic moving in one direction
o (C) is between the scheme and the nearest land
o (D) is designated as an anchorage area
 
130. (1.1.3.11-7) INLAND ONLY At night, what lights are required on barges moored in a group
formation more than two barges wide?
o (A) Two unobstructed all-round red lights
(B) Two unobstructed all-round white lights
o (C) Two yellow lights in a vertical line at the corner extremities of the group
o (D) All-round yellow lights placed at the corners of each barge in the group
 
131. (1.2.2.2C-15) BOTH INTERNATIONAL & INLAND Two vessels are in an overtaking situation.
Which of the lights on the overtaken vessel will the overtaking vessel see?
(A) Stern light only
o (B) One masthead light and a sidelight
o (c) Both sidelights
o (D) Two masthead lights
 
132. (1.2.2.2D-5) BOTH INTERNATIONAL & INLAND While underway at night, you sight a vessel
ahead displaying the lights shown in illustration D071RR below. How should the vessels pass?
o (A) You should sound an appropriate overtaking signal.
(B) Both vessels should alter course to starboard and pass port to port.
o (C) Both vessels should alter course to port and pass starboard to starboard.
o (D) Your vessel should hold course and speed and the other vessel should keep clear.
 
133. (1.2.2.1E-3) BOTH INTERNATIONAL & INLAND When in sight of another vessel and there is
sufficient sea room, any action taken to avoid collision must.
o (A) be accompanied by sound signals
o (B) include a speed change
(C) not result in another close-quarters situation
o (d) All of the above
 
134. (1.2.2.1E-5) BOTH INTERNATIONAL & INLAND You are approaching another vessel. She is
about one mile distant and is on your starboard bow. You believe she will cross ahead of you. She
then sounds a whistle signal of five short blasts. What action should you take?
o (A) reduce speed slightly to make sure she will have room to pass
o (B) answer the signal and hold course and speed
(C) make a large course change, and slow down if necessary
o (D) wait for another whistle signal from the other vessel
 
135. (1.2.2.1E-2) BOTH INTERNATIONAL & INLAND By radar alone, you detect a vessel ahead on a
collision course, about 3 miles distant. Your radar plot shows this to be a meeting situation. Which
action should you take?
(A) turn to starboard
o (B) turn to port
o (C) maintain course and speed and sound no signal
o (D) maintain course and speed and sound the danger signal
 
136. (1.2.2.1E-9) BOTH INTERNATIONAL & INLAND Which is a key requirement when taking action
to avoid collision?
o (A) not make any large speed changes
(B) make sure the action is taken in enough time
o (C) not make any large course changes
o (d) All of the above
 
137. (1.1.3.5-6) INLAND ONLY What lights will a single vessel being towed alongside show?
o (A) sidelights and a stern light
(B) a special flashing light, sidelights, and a stern light
o (C) only the outboard sidelight and a stern light
o (D) one all-round white light
 
138. (1.2.2.1F-2) BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in a small
motorboat. You sight a tankship off your port bow coming up the channel. Which statement is
TRUE?
o (A) You are the stand-on vessel because the tankship is to port.
o (B) The tankship is the stand-on vessel because it is the larger of the two vessels.
o (C) The tankship is the stand-on vessel because it is to port of your vessel.
(D) You cannot impede the safe passage of the tankship.
 
139. (1.2.2.1F-20) BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow
channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel
engaged in fishing. Which statement is TRUE?
o (A) The sailing vessel must keep out of the way of the fishing vessel.
o (B) Each vessel should move to the edge of the channel on her port side.
o (C) Each vessel should be displaying signals for a vessel constrained by her draft.
(D) The fishing vessel is directed not to impede the passage of the sailing vessel.
 
140. (1.2.2.1F-9) BOTH INTERNATIONAL & INLAND You are on Vessel "A" engaged in fishing in a
narrow channel as shown in illustration D037RR below. Vessel "B" is a tanker proceeding in the
channel. Vessel "B" sounds five short and rapid blasts. What action should you take?
o (A) sound one prolonged followed by two short blasts
(B) not impede the passage of vessel "B"
o (C) not answer the whistle signals from vessel "B"
o (D) maintain course and speed
 
141. (1.2.2.1F-18) BOTH INTERNATIONAL & INLAND Which vessel shall NOT impede the passage
of a vessel which can safely navigate only within a narrow channel or fairway?
o (A) A vessel dredging
(B) A sailing vessel
o (C) A vessel servicing an aid to navigation
o (d) All of the above
 
142. (1.1.3.5-12) INLAND ONLY Which lights are required for a barge, not part of a composite unit,
being pushed ahead?
(A) Sidelights and a special flashing light
o (B) Sidelights, a towing light, and a stern light
o (C) Sidelights, a special flashing light, and a stern light
o (D) Sidelights and a stern light
 
143. (1.2.2.1F-3) BOTH INTERNATIONAL & INLAND You are on vessel "B" and crossing a narrow
channel. Vessel "A", who can only navigate within the channel, is on your port bow and crossing as
shown in illustration D040RR below. Which action should you take?
(A) Give-way to the other vessel.
o (B) Maintain course and speed as the ship is on your port bow.
o (C) Sound the danger signal.
o (D) Increase speed and cross his bow.
 
144. (1.2.2. 1F-12) BOTH INTERNATIONAL & INLAND You are approaching a narrow channel.
Another vessel in the channel can only be navigated safely in that channel. Which action should you
take?
o (A) sound two prolonged blasts followed by one short blast
o (B) sound three short blasts, and take all way off your vessel
o (C) hold your course and speed if she is on your port bow
(D) not cross the channel if you might impede the other vessel
 
145. (1.1.4.3-68) INLAND ONLY A vessel leaving a dock or berth must sound a prolonged blast of the
whistle only if.
(A) she is a power-driven vessel
o (B) her engines are going astern
o (C) visibility is restricted
o (D) other vessels can be seen approaching
 
146. (1.1.3.8-5) INLAND ONLY While underway you sight the lights shown in illustration D081RR
below with the yellow lights flashing. The lights displayed should have which of the following
characteristics?
o (A) visible for at least one mile
o (B) flashing at intervals of 120 flashes per minute
o (C) more than 50 meters apart
(D) visible at night and during periods of restricted visibility
 
147. (1.2.2 .2E-8) BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as
shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. What is
Vessel "A" considered in this scenario?
o (A) the stand-on vessel
(B) the give-way vessel
o (C) the overtaking vessel
o (D) None of the above
 
148. (1.2.2.1F-24) BOTH INTERNATIONAL & INLAND Which statement is TRUE for a vessel
proceeding along a narrow channel?
o (A) not overtake any vessels within the channel
o (B) when nearing a bend in the channel, sound a long blast of the whistle
o (C) avoid crossing the channel at right angles
(D) keep as near as safe and practicable to the limit of the channel on her starboard side
 
149. (1.2.2.1F-4) BOTH INTERNATIONAL & INLAND You are on vessel "A" and proceeding down a
narrow channel as shown in illustration D040RR below. You can only navigate within the channel
and vessel "B" is crossing so as to involve risk of collision. Which action would be most prudent?
o (A) Back down and allow vessel "B" to cross ahead.
o (B) Maintain course and speed.
o (C) Alter course to starboard to give him more room.
(D) Sound the danger signal and take evasive action.
 
150. (1.2.2. 1F-21) BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow
channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel
engaged in fishing in the narrow channel. Which statement is TRUE?
o (A) Each vessel should move to the edge of the channel on her port side.
o (B) Each vessel should be displaying signals for a vessel constrained by her draft.
o (C) The vessels are required to exchange signals.
(D) The fishing vessel is directed not to impede the passage of the sailing vessel.
 
151. (1.2.2.3A-18) BOTH INTERNATIONAL & INLAND What is TRUE when operating in fog and
other vessels are detected by radar?
o (A) You should determine the course and speed of all radar contacts at six minute intervals.
o (B) You should make an ample change to port for a vessel crossing on the starboard bow.
(C) You should maneuver in ample time if a close-quarters situation is developing.
o (D) Long-range scanning will provide early warning of ALL other vessels within radar range.
 
152. (1.2.2.1F-22) BOTH INTERNATIONAL & INLAND When underway in a channel, which action
should you take, if it is safe and practicable?
o (A) stay near the middle of the channel
o (B) exchange whistle signals with any other vessels in the channel
o (C) keep to the starboard side of any vessels you meet
(D) keep to the side of the channel which lies to your starboard
 
153. (1.2.2.1F-6) BOTH INTERNATIONAL & INLAND Which vessel shall NOT impede the passage of
a vessel which can safely navigate only within a narrow channel or fairway?
o (A) A vessel fishing
o (B) A vessel sailing
o (C) A vessel of less than 20 meters in length
(D) All of the above
 
154. (1.2.2.1F-8) BOTH INTERNATIONAL & INLAND In narrow channels, vessels of less than what
length shall not impede the safe passage of vessels which can navigate only inside that channel?
(A) 20 meters
o (B) 50 meters
o (C) 65 meters
o (d) 100 meters
 
155. (1.2.2.1F-11) BOTH INTERNATIONAL & INLAND Which vessel shall not impede the passage of
a vessel which can only navigate inside a narrow channel?
o (A) A vessel engaged in surveying
o (B) A vessel not under command
(C) A vessel of less than 20 meters in length
o (d) All of the above
 
156. (1.2.2.1F-13) BOTH INTERNATIONAL & INLAND You are preparing to cross a narrow channel.
You see a vessel that can only be navigated safely within the channel. Which action should you
take?
o (A) sound the danger signal
(B) not cross the channel if you might impede the other vessel
o (C) hold your course and speed
o (D) initiate an exchange of passing signals
 
157. (1.1.3.5-16) INLAND ONLY Which indicates the presence of a partly submerged object being
towed?
o (A) An all-round light at each end of the towed object
o (B) A diamond shape on the towed object
o (C) A searchlight beamed from the towing vessel in the direction of the tow
(D) All of the above
 
158. (1.2.2.1F-14) BOTH INTERNATIONAL & INLAND Which vessel is directed not to impede the
passage of a vessel which can only navigate inside a narrow channel?
(A) A vessel of less than 20 meters in length
o (B) A vessel not under command
o (C) A vessel engaged in surveying
o (d) All of the above
 
159. (1.2.2.2H-5) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning
seaplanes on the water?
o (A) A seaplane should show the lights for a vessel constrained by her draft.
o (B) A seaplane must exhibit appropriate lights but need not exhibit shapes.
o (C) In situations where a risk of collision exists, a seaplane should always give way.
(D) A seaplane on the water shall, in general, keep well clear of all vessels.
 
160. (1.2.2 .2H-33) BOTH INTERNATIONAL & INLAND Your power-driven vessel is NOT making way,
but is not in any way disabled. Another power-driven vessel is approaching you on your starboard
beam. Which statement is TRUE?
(A) Your vessel is the give-way vessel in a crossing situation.
o (B) You should be showing the lights or shapes for a vessel restricted in her ability to maneuver.
o (C) You should be showing the lights or shapes for a vessel not under command.
o (D) The other vessel must give way since your vessel is stopped.
 
161. (1.1.4.3-5) INLAND ONLY You are on a power-driven vessel "I" as shown in illustration D036RR
below. Vessel "II" is a power-driven vessel engaged in fishing that will pass within 1/2 a mile of your
vessel. You sound one short blast on the whistle. Vessel "II" does not sound any signal. Which
action should you take?
(A) Sound the danger signal and reduce speed.
o (B) Hold course and speed without giving a signal.
o (C) Sound one short blast, reduce speed and turn to starboard.
o (D) Sound two short blasts and change course to port.
 
162. (1.1.4.3-21) INLAND ONLY Power-driven vessels "A" and "B" are meeting on a river as shown in
illustration D041RR below and will pass about 1/4 mile apart. Which action should the vessels take?
o (A) The vessels should exchange one blast whistle signals and pass starboard to starboard
(B) The vessels should exchange two blast whistle signals and pass starboard to starboard.
o (C) The vessels should pass starboard to starboard and must sound whistle signals only if either
vessel changes course.
o (D) The vessels should continue on course and pass without sounding any whistle signals.
 
163. (1.2.2.1F-15) BOTH INTERNATIONAL & INLAND Your 15-meter vessel is crossing a narrow
channel and a large cargo vessel to port is within the channel and crossing your course. What action
must you take?
o (A) hold course and speed
o (B) initiate an exchange of passing signals
(C) not cross the channel if you might impede the other vessel
o (D) sound the danger signal
 
164. (1.2.2.1F-17) BOTH INTERNATIONAL & INLAND Which vessel is NOT to impede the passage
of a vessel which can only navigate safely within a narrow channel?
o (A) Any sailing vessel
o (B) A vessel engaged in fishing
o (C) Any vessel less than 20 meters in length
(D) All of the above
 
165. (1.2.2 .2C-18) BOTH INTERNATIONAL & INLAND A vessel is overtaking when she can see
which light(s) of a vessel ahead?
o (A) One sidelight and a masthead light of the vessel
o (B) Only a sidelight of the vessel
o (C) The masthead lights of the vessel
(D) Only the stern light of the vessel
 
166. (1.2.2.1F-19) BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow
channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel
engaged in fishing. Which statement is TRUE?
o (A) Both vessels should be displaying the signal for a vessel restricted in her ability to maneuver.
(B) The fishing vessel shall not impede the passage of the sailing vessel.
o (C) Each vessel should move to the edge of the channel on her port side.
o (D) The fishing vessel must sound the danger signal.
 
167. (1.2.2.1G-1) BOTH INTERNATIONAL & INLAND Which statement about the Navigation Rules is
TRUE?
o (A) The Rules require vessels to comply with Traffic Separation Scheme regulations.
o (B) The Rules permit a stand-on vessel to take action prior to being in extremis.
o (C) The Rules use the term "safe speed."
(D) All of the above are correct.
 
168. (1.2.2.1G-7) BOTH INTERNATIONAL & INLAND Which statement is TRUE for Traffic separation
schemes?
o (A) prohibit vessels carrying hazardous cargoes from entering waters that are environmentally
sensitive
o (B) provide routing and scheduling procedures to reduce shipping delays
o (C) provide traffic patterns in congested areas, so that vessels can operate without having a
separate look-out
(D) provide inbound and outbound lanes to promote the safe flow of vessel traffic
 
169. (1.1.2. 1F-24) INLAND ONLY Which statement is TRUE of a power-driven vessel proceeding
downbound with the current, when meeting an upbound vessel on the Western Rivers?
o (A) She shall propose the manner of passage.
o (B) She has the right of way.
o (C) She shall initiate maneuvering signals.
(D) All of the above
 
170. (1.1.3.4-1) INLAND ONLY Which statement is TRUE concerning lighting requirements for Great
Lakes vessels?
(A) An all-round white light may be carried in lieu of the second masthead light and stern light.
o (B) Great Lakes vessels are exempted from the requirement to show yellow towing lights.
o (C) Sidelights for vessels over 50 meters are required to have only a two-mile range of visibility.
o (D) The showing of a forward masthead light is optional for vessels under 150 meters.
 
171. (1.2.2.3A-12) BOTH INTERNATIONAL & INLAND You are underway in heavy fog. You hear the
fog signal of a vessel which is somewhere ahead of your vessel. Which action(s) are your required
to take?
o (A) maintain speed and sound the danger signal
o (B) stop engines and navigate with caution
(C) slow to bare steerageway and navigate with caution
o (D) slow to moderate speed and navigate with caution
 
172. (1.2.2.1G-13) BOTH INTERNATIONAL & INLAND A sailing vessel shall not impede the safe
passage of which vessel(s)?
o (A) pilot vessel enroute to a pilot station
(B) power-driven vessel following a traffic lane
o (C) law enforcement vessel
o (d) All of the above
 
173. (1.1.4.3-9) INLAND ONLY Two power-driven vessels are crossing within a half a mile of each
other as shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle.
What action should vessel "B" take?
o (A) sound the danger signal and slow to moderate speed
o (B) maintain course and speed without sounding any signals
(C) sound one short blast and maintain course and speed
o (D) alter course to the right or slowdown
 
174. (1.2.2.1G-2) BOTH INTERNATIONAL & INLAND Which is TRUE for a vessel using a traffic
separation scheme?
o (A) only anchor in the separation zone
o (B) use the separation zone for navigating through the scheme if she is hindering other traffic due
to her slower speed
o (C) avoid crossing traffic lanes, but if obliged to do so, shall cross on as small an angle as is
practical
(D) avoid anchoring in areas near the termination of the scheme
 
175. (1.2.2.1G-3) BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic
separation scheme which.
(A) separates traffic proceeding in one direction from traffic proceeding in the opposite direction
o (B) contains all the traffic moving in the same direction
o (C) is designated as an anchorage area
o (D) is located between the scheme and the nearest land
 
176. (1.2.2.1G-8) BOTH INTERNATIONAL & INLAND The purpose of established traffic separation
schemes is to do which of the following?
o (A) prohibit vessels carrying hazardous cargos from entering waters that are environmentally
sensitive
(B) provide inbound and outbound lanes to promote the safe flow of vessel traffic
o (C) provide routing and vessel scheduling procedures to reduce shipping delays
o (D) provide vessel reporting systems to assist in search and rescue in the event of a vessel
casualty
 
177. (1.2.2.2E-2) BOTH INTERNATIONAL & INLAND Vessels "I" and "II" are power-driven vessels.
You are on vessel "I" as shown in illustration D036RR below. In this scenario you are which of the
following?
o (A) overtaking vessel
(B) stand-on vessel
o (C) give-way vessel
o (D) None of the above
 
178. (1.2.2.2D-17) BOTH INTERNATIONAL & INLAND A head-on situation at night is one in which
you see dead ahead a vessel showing which light(s)?
o (A) one sidelight and a masthead light
o (B) one sidelight and two masthead lights
(C) both sidelights of the vessel and her masthead light(s)
o (D) one sidelight
 
179. (1.2.2.1G-9) BOTH INTERNATIONAL & INLAND Systems of inbound and outbound lanes to
promote the safe flow of vessel traffic in certain areas around the world are known as.
o (A) collision avoidance fairways
(B) traffic separation schemes
o (C) restricted maneuverability channels
o (D) merchant vessel reporting systems
 
180. (1.1.3.5-8) INLAND ONLY What do the lights shown in illustration D075RR below represent?
o (A) vessel underway and dredging
(B) vessel pushing ahead
o (C) pipeline
o (D) vessel being towed astern
 
181. (1.2.2.3A-11) BOTH INTERNATIONAL & INLAND A vessel hearing a fog signal forward of her
beam has not determined if risk of collision exists. What shall she reduce speed to?
(A) bare steerageway
o (B) moderate speed
o (C) half speed
o (D) safe speed
 
182. (1.2.2.1G-11) BOTH INTERNATIONAL & INLAND Which statement is TRUE for a vessel using a
traffic separation scheme?
o (A) only anchor in the separation zone
o (B) cross a traffic lane at as small an angle as possible
o (C) utilize the separation zone for navigating through the scheme if she is impeding other traffic
due to her slower speed
(D) avoid anchoring in areas near the termination of the scheme
 
183. (1.2.2.1G-12) BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme
shall NOT take which action?
o (A) enter the separation zone
o (B) engage in fishing the separation zone
o (C) cross a traffic lane
(D) proceed in an inappropriate traffic lane
 
184. (1.1.2.1F-8) INLAND ONLY Two power-driven vessels are meeting in a narrow channel on the
Great lakes as shown in illustration D029RR below. Vessel "A" is downbound with a following
current. Vessel "B" should do which of the following?
(A) Take action to permit safe passage
o (B) Initiate the maneuvering signals
o (C) Have the right of way
o (D) None of the above
 
185. (1.2.2.2B-1) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two
sailing vessels?
(A) A sailing vessel with the wind forward of the beam on her port side shall keep out of the way
of a sailing vessel with the wind forward of the beam on the starboard side.
o (B) A sail vessel with the wind abaft of the beam must keep out of the way of a vessel sailing into
the wind.
o (C) When both vessels have the wind on the same side, the vessel to leeward shall keep out of
the way.
o (D) None of the above
 
186. (1.2.2.2D-1) BOTH INTERNATIONAL & INLAND In which situation do the Rules require both
vessels to change course?
(A) Two power-driven vessels meeting head-on
o (B) Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-
way vessel is not taking appropriate action
o (C) Two sailing vessels crossing with the wind on the same side
o (d) All of the above
 
187. (1.2.2.2E-12) BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing,
which vessel is the stand-on vessel?
(A) The vessel which is to starboard of the other vessel
o (B) The larger vessel
o (C) The vessel that sounds the first whistle signal
o (D) The vessel which is to port of the other vessel
 
188. (1.2.2.2B-4) BOTH INTERNATIONAL & INLAND If two sailing vessels are running free with the
wind on the same side, which one must keep clear of the other?
o (A) The one to leeward
o (B) The one with the wind closest abeam
(C) The one to windward
o (D) The one with the wind closest astern
 
189. (1.2.2.3A-6) BOTH INTERNATIONAL & INLAND When navigating in restricted visibility, what
action shall a power-driven vessel take?
(A) have her engines ready for immediate maneuver
o (B) operate at a speed to be able to stop in the distance of her visibility
o (C) when making way, sound one prolonged blast at intervals of not more than one minute
o (D) stop her engines when hearing a fog signal forward of her beam, even if risk of collision does
not exist
 
190. (1.1.3.8-8) INLAND ONLY Identify the operation indicated by the lights exhibited as shown in
illustration D085RR below.
o (A) A vessel aground assisted by tugs
o (B) A submarine engaged in underway replenishment
o (C) Aircraft carrier engaged in the launching and recovery of aircraft
(D) None of the above
 
191. (1.2.2.2B-5) BOTH INTERNATIONAL & INLAND If two sailing vessels are running free with the
wind on the same side, which one must keep clear of the other?
o (A) The one that sounds the first whistle signal
(B) The one to windward
o (C) The one with the wind closest abeam
o (D) The one to leeward
 
192. (1.2.2.2B-7) BOTH INTERNATIONAL & INLAND You are on a sailing vessel with the wind on the
starboard side and are approaching another sailing vessel that has the wind on the port side. Which
action should you take?
o (A) Reduce sail and hold course.
o (B) Alter course away from the other vessel.
(C) Maintain course and speed.
o (D) Any maneuver to avoid collision.
 
193. (1.2.2.2C-2) BOTH INTERNATIONAL & INLAND You are on vessel "A" and approaching vessel
"B" as shown in illustration D015RR below. You are not sure whether your vessel is crossing or
overtaking vessel "B". You should take which of the following actions?
o (A) consider it to be a crossing situation
(B) consider it to be an overtaking situation
o (C) consider it a crossing situation if you can cross ahead safely
o (D) change course to make the situation definitely either crossing or overtaking
 
194. (1.2.2.2C-3) BOTH INTERNATIONAL & INLAND You are underway on vessel "B" approaching
vessel "A" as shown in illustration D038RR below. You are unable to see any sidelights on vessel
"A". What type of situation is this?
o (A) crossing situation
o (B) special circumstances situation
o (C) meeting situation
(D) overtaking situation
 
195. (1.2.2.2C-4) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D009RR below. Which vessel is the stand-on vessel?
o (A) Vessel "A"
o (B) Neither vessel
(C) Vessel "B"
o (D) Both vessels must keep clear of the other.
 
196. (1.2.2 .2C-5) BOTH INTERNATIONAL & INLAND A sailing vessel is overtaking a tug and tow as
shown in illustration D043RR below. Which statement is correct?
(A) The tug is the stand-on vessel because it is being overtaken.
o (B) The sailing vessel is the stand-on vessel because it is overtaking.
o (C) The tug is the stand-on vessel because it is towing.
o (D) The sailing vessel is the stand-on vessel because it is under sail.
 
197. (1.2.2.2H-15) BOTH INTERNATIONAL & INLAND While underway you sight a vessel displaying
the shapes shown in illustration D006RR below. What action should you take?
(A) stay clear, the other vessel cannot get out of the way
o (B) contact the vessel on VHF radiotelephone
o (C) stop your vessel and sound passing signals
o (D) provide assistance, the other vessel is in distress
 
198. (1.2.2.2C-6) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below and will pass without changing course. Which light will vessel "A" observe
on vessel "B"?
o (A) green sidelight
(B) white stern light
o (C) yellow towing light
o (D) None of the above
 
199. (1.2.2.2C-8) BOTH INTERNATIONAL & INLAND Which light(s) will be visible to a
vessel overtaking another vessel?
o (A) a sidelight and one masthead light of the vessel
o (B) only a sidelight of the vessel
(C) only the stern light of the vessel
o (D) any lights except the masthead lights of the vessel
 
200. (1.2.2.2C-9) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below. Which of the following describes vessel "A" in this scenario?
o (A) stand-on vessel
(B) give-way vessel
o (C) overtaken vessel
o (D) None of the above
 
201. (1.2.2.2C-10) BOTH INTERNATIONAL & INLAND Which statement is TRUE in an overtaking
situation?
o (A) It is the duty of the vessel being overtaken to get out of the way.
o (B) An overtaking situation exists when one vessel is approaching another vessel from anywhere
abaft the beam.
(C) Any later change of bearing between the two vessels shall not make the overtaking vessel a
crossing vessel.
o (D) All of the above
 
202. (1.2.2.2C-11) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown
in illustration D017RR below. Vessel "B" should do which of the following?
o (A) may steer various courses and vessel "A" must keep clear
o (B) should slow down until vessel "A" has passed
(C) should hold her course and speed
o (D) should change course to the right
 
203. (1.2.2.2C-12)' BOTH INTERNATIONAL & INLAND Which statement applies to a situation where
a sailing vessel is overtaking a power-driven vessel?
o (A) A "special circumstance" situation exists.
o (B) The vessel which has the other vessel to the right must keep out of the way.
(C) The sailing vessel must keep out of the way of the power-driven vessel.
o (D) The power-driven vessel must keep out of the way of the sailing vessel.
 
204. (1.2.2 .2C-16) BOTH INTERNATIONAL & INLAND An overtaking situation at night would be one
in which one vessel sees which light(s) of a vessel ahead?
o (A) One sidelight, the masthead lights and stern light
o (B) Masthead lights and sidelights
o (C) Both sidelights
(D) Stern light
 
205. (1.2.2.2C-17) BOTH INTERNATIONAL & INLAND Power-driven vessels must keep out of the
way of sailing vessels except.
o (A) in a crossing situation
(B) when the sailing vessel is overtaking
o (C) when they are making more speed than the power-driven vessel
o (D) on the Inland Waters of the United States
 
206. (1.2.2.2C-19) BOTH INTERNATIONAL & INLAND When do the Rules state that a vessel
overtaking another vessel is relieved of her duty to keep clear?
(A) when she is past and clear of the other vessel
o (B) when the other vessel is no longer in sight
o (C) when she is forward of the other vessel's port beam
o (D) when the overtaking situation becomes a crossing situation
 
207. (1.1.3.5-2) INLAND ONLY You are meeting "head-on" a tug towing a barge alongside about a
mile away. In addition to the white masthead lights which other lights do you see on the tug and tow
combined?
o (A) One green and one red sidelight on the outside of the unit
o (B) Only the green and red sidelights marking each vessel
(C) The green and red sidelights marking each vessel and a special flashing light
o (D) One green and one red sidelight and a special flashing light
 
208. (1.1.2.1F-14) INLAND ONLY A power-driven vessel crossing a river on the Western Rivers has
the right of way over which vessel?
o (A) Vessels descending the river
o (B) All vessels ascending and descending the river
o (C) Vessels ascending the river
(D) None of the above
 
209. (1.2.2.2C-20) BOTH INTERNATIONAL & INLAND You are the watch officer on a power-driven
vessel and notice a large sailing vessel approaching from astern. Which action should you take?
o (A) slow down
o (B) sound one short blast and change course to starboard
o (C) sound two short blasts and change course to port
(D) hold your course and speed
 
210. (1.1.3.5-10) INLAND ONLY While underway at night, you see two yellow lights displayed in a
vertical line. What do the lights indicate to you?
o (A) opening in a pipeline
o (B) vessel broken down
o (C) vessel fishing
(D) vessel pushing ahead
 
211. (1.2.2.2H-11) BOTH INTERNATIONAL & INLAND A power-driven vessel has on her port side a
sailing vessel which is on a collision course. What action is the power-driven vessel required to
take?
o (A) stop her engines
o (B) maintain course and speed
(C) keep clear
o (D) sound one blast and turn to starboard
 
212. (1.2.2.2C-21) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two
approaching sailing vessels?
o (A) A sailing vessel seeing another to leeward on an undetermined tack shall hold her course.
o (B) The vessel making the most speed is the give-way vessel.
(C) A sailing vessel overtaking another is the give-way vessel.
o (d) All of the above
 
213. (1.2.2.2D-3) BOTH INTERNATIONAL & INLAND You are on vessel "A" pushing a barge ahead
and meeting vessel "B" as shown in illustration D012RR below. How should the vessels pass?
o (A) The vessels should determine which will alter course by sounding whistle signals.
o (B) Vessel "A" should maintain course and vessel "B" alter course.
(C) Both vessels must alter course to starboard and pass port to port.
o (D) Both vessels must alter course to port and pass starboard to starboard.
 
214. (1.2.2.2H-6) BOTH INTERNATIONAL & INLAND Your power-driven vessel is underway when
you sight a sailing vessel on your port bow. Which vessel is the "stand-on" vessel?
(A) The sailboat, because it is under sail
o (B) The sailboat, because it is to port of your vessel
o (C) Your vessel, because it is to starboard of the sailboat
o (D) Your vessel, because it is a power-driven vessel
 
215. (1.1.2. 1F-27) INLAND ONLY A 150 meter vessel is proceeding down the course of a narrow
channel in the Great Lakes System. A 60-meter vessel is starting to cross the channel. Which
statement is TRUE?
(A) If the smaller vessel is engaged in fishing, she shall not impede the passage of the other
vessel.
o (B) The vessel in the channel must slow to her steerageway.
o (C) The crossing vessel has the right of way.
o (D) The larger vessel is considered to be a vessel restricted in her ability to maneuver.
 
216. (1.1.3.2-2) INLAND ONLY Which is a characteristic of a "special flashing light"?
o (A) It must be of the same character and construction as the masthead light.
o (B) It is required for all vessels being pushed ahead as part of a composite unit.
(C) It must show through an arc of not less than 180 nor more than 225.
o (d) All of the above
 
217. (1.2.2.2C-22) BOTH INTERNATIONAL & INLAND A vessel approaching your vessel from 235
relative is in what type of situation?
o (A) Crossing
o (b) Meeting
o (C) Passing
(D) Overtaking
 
218. (1.2.2.2D-12) BOTH INTERNATIONAL & INLAND Rule 14 describes the action to be taken by
vessels meeting head-on. Which of the following conditions must exist in order for this rule to apply?
o (A) Both vessels must be power-driven.
o (B) They must be meeting on reciprocal or nearly reciprocal courses.
o (C) The situation must involve risk of collision.
(D) All of the above
 
219. (1.2.2.2C-23) BOTH INTERNATIONAL & INLAND An overtaking situation would be one in which
one vessel is approaching another from more than how many degrees abaft the beam?
o (A) 0
o (B) 10
(C) 22.5
o (D) None of the above
 
220. (1.1.2.2E-1) INLAND ONLY A power-driven vessel crossing on the Western Rivers has the right
of way over which vessels?
o (A) Vessels descending the river
o (B) Vessels ascending the river
o (C) All vessels ascending and descending the river
(D) None of the above
 
221. (1.2.2.2C-24) BOTH INTERNATIONAL & INLAND You are under sail and overtaking a tug and
tow. Which action is correct?
o (A) You must maneuver to avoid collision only if the tug is to leeward and the wind is on your port
side.
o (B) Both vessels are required to maneuver to avoid collision.
(C) You must maneuver to avoid the tug and tow.
o (D) The power-driven tug must maneuver to avoid collision.
 
222. (1.2.2.2C-25) BOTH INTERNATIONAL & INLAND When must a sailing vessel keep her course
and speed?
o (A) when to leeward of another sailing vessel
(B) when being overtaken
o (C) when crossing a vessel engaged in fishing
o (D) when to windward of another sailing vessel
 
223. (1.2.2.2D-4) BOTH INTERNATIONAL & INLAND Vessel "A" and vessel "B" (which is pushing
ahead) are meeting head-on as shown in illustration D008RR below. How must the vessels pass?
o (A) Vessel "A" must alter course while vessel "B" continues on its present course.
(B) Both vessels should alter course to starboard and pass port to port.
o (C) Both vessels should alter course to port and pass starboard to starboard.
o (D) The vessels should determine which will alter course by exchanging whistle signals.
 
224. (1.2.2.3A-4) BOTH INTERNATIONAL & INLAND Which vessel is the stand-on vessel when two
vessels crossing in fog are NOT in sight of one another?
o (A) The vessel which has the other on her own port side
o (B) The vessel which hears the other vessel's fog signal first
(C) Neither vessel is the stand-on vessel.
o (D) The vessel which has the other on her own starboard side
 
225. (1.2.2.2D-6) BOTH INTERNATIONAL & INLAND You sight another power-driven vessel dead
ahead showing both the red and green sidelights. Which action are you required to take?
o (A) carefully watch his compass bearing
o (B) alter your course to port
(C) alter your course to starboard
o (D) start a radar plot in order to ascertain his course
 
226. (1.2.2.2D-16) BOTH INTERNATIONAL & INLAND Vessel "A" is on course 000T. Vessel "B" is
on a course such that she is involved in a head-on situation and is bearing 355T, 2 miles away from
vessel "A". To ensure a safe passing, vessel "A" should take which action?
o (A) maintain course
o (B) alter course to port
(C) maneuver to ensure a port to port passing
o (D) alter course to ensure a starboard to starboard passing
 
227. (1.2.2.2G-13) BOTH INTERNATIONAL & INLAND When shall the stand-on vessel in a crossing
situation take action to avoid the other vessel?
(A) When action by the give-way vessel alone will not prevent a collision
o (B) When the vessels become less than 1/2 mile apart
o (C) When the bearing to give-way vessel becomes steady
o (D) When a risk of collision exists
 
228. (1.2.2.2D-8) BOTH INTERNATIONAL & INLAND You are on vessel "A" towing a barge alongside
and meeting power-driven vessel "B" as shown in illustration D039RR below. Which action should
you take?
o (A) Alter course to port
o (B) Back down to reduce the strain on the lines
(C) Alter course to starboard
o (D) Maintain course and speed
 
229. (1.1.1.3-8) INLAND ONLY The term "Great Lakes", as defined by the Inland Rules of the Road,
includes part of the.
o (A) St. Lawrence River
o (B) Calumet River
o (C) Chicago River
(D) All of the above
 
230. (1.2.2.2G-9) BOTH INTERNATIONAL & INLAND When shall the stand-on vessel change course
and speed?
o (A) When the two vessels become less than half a mile apart
o (B) After the give-way vessel sounds one blast in a crossing situation
o (C) The stand-on vessel may change course and speed at any time as it has the right of way
(D) When action by the give-way vessel alone cannot prevent collision
 
231. (1.2.2.2D-9) BOTH INTERNATIONAL & INLAND Two vessels are meeting head-on. How must
the vessels pass?
o (A) One vessel must alter course while the other must continue on its course.
o (B) Both vessels should alter course to port and pass starboard to starboard.
o (C) The vessels should determine which will alter course by sounding whistle signals.
(D) Both vessels should alter course to starboard and pass port to port.
 
232. (1.2.2.2D-10) BOTH INTERNATIONAL & INLAND Two power-driven vessels meeting in a "head-
on" situation are directed by the Rules to take which action?
o (A) slow to bare steerageway
(B) alter course to starboard and pass port to port
o (C) alter course to port and pass starboard to starboard
o (D) decide on which side the passage will occur by matching whistle signals
 
233. (1.2.2.2D-11) BOTH INTERNATIONAL & INLAND When two power-driven vessels are meeting
head-on and there is a risk of collision, which action is required to be taken?
o (A) stop her engines
o (B) back down
o (C) sound the danger signal
(D) alter course to starboard
 
234. (1.2.2.2D-13) BOTH INTERNATIONAL & INLAND What describes a head-on situation?
o (A) Seeing two forward white towing identification lights in a vertical line on a towing vessel
directly ahead
o (B) Seeing a vessel displaying both sidelights ONLY dead ahead
(C) Seeing both sidelights and masthead light(s) of a vessel dead ahead
o (D) Seeing both sidelights of a vessel directly off your starboard beam
 
235. (1.1.2.1F-3) INLAND ONLY You are navigating in a narrow channel and must remain in the
channel for safe operation. Another vessel is crossing the channel ahead of you from your starboard
and you doubt whether your vessel will pass safely. Which statement is TRUE?
o (A) You must stop your engines and you may sound the danger signal.
o (B) You must stop your vessel since the other vessel is the stand-on.
(C) You must sound the danger signal.
o (D) You must sound one short blast of the whistle and turn to starboard.
 
236. (1.2.2.2D-14) BOTH INTERNATIONAL & INLAND A "head-on" situation shall be deemed to exist
at night when which of the conditions are met?
o (A) the vessels will pass closer than half a mile
(B) both sidelights and masthead light(s) are visible
o (C) both vessels sound one prolonged blast
o (D) one sidelight and the masthead light are visible
 
237. (1.2.2.2D-15) BOTH INTERNATIONAL & INLAND A head-on situation at night occurs when you
can see which light(s)?
o (A) one sidelight and a masthead light of a vessel ahead of you
(B) both sidelights of a vessel dead ahead of you
o (C) one sidelight of a vessel ahead of you
o (D) one sidelight, a masthead light, and a range light of a vessel ahead of you
 
238. (1.2.2.2D-18) BOTH INTERNATIONAL & INLAND Which describes a head-on situation?
o (A) Seeing both sidelights of a vessel directly off your starboard beam
o (B) Seeing two forward white towing lights in a vertical line on a towing vessel directly ahead
(C) Seeing both sidelights of a vessel directly ahead
o (D) Seeing one red light of a vessel directly ahead
 
239. (1.1.2.2D-3) INLAND ONLY Which is TRUE of a vessel downbound with a following current
when meeting an upbound vessel on the Western Rivers?
(A) She has the right of way only if she is power-driven.
o (B) Neither vessel has the right of way.
o (C) She does not have the right of way, since the other vessel is not crossing the river.
o (D) She must wait for a whistle signal from the upbound vessel.
 
240. (1.2.2.2E-1) BOTH INTERNATIONAL & INLAND Every vessel that is to keep out of the way of
another vessel must take positive early action to comply with this obligation and must.
o (A) avoid passing astern of the other vessel
o (B) sound one prolonged blast to indicate compliance
(C) avoid crossing ahead of the other vessel
o (D) alter course to port for a vessel on her port side
 
241. (1.2.2.2E-3) BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead
when vessel "B" is sighted off the starboard bow as shown in illustration D005RR below. Which
statement is TRUE?
o (A) Vessel "A" is the stand-on vessel because it is pushing ahead.
o (B) Vessel "A" is the stand-on vessel because it is to the port side of vessel "B".
(C) Vessel "B" is the stand-on vessel because it is to starboard of vessel "A".
o (D) Neither vessel is the stand-on vessel.
 
242. (1.2.2.2E-5) BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing,
the vessel which has the other to starboard must keep out of the way if.
o (A) the vessels will pass within half a mile of each other
(B) the situation involves risk of collision
o (C) whistle signals have been sounded
o (D) she is the faster vessel
 
243. (1.2.2.2G-14) BOTH INTERNATIONAL & INLAND Which requirement must be met in order for a
stand-on vessel to take action to avoid collision?
o (A) The vessels must be within half a mile of each other.
(B) Risk of collision must exist.
o (C) There are no requirements to be met. The stand-on vessel may take action anytime.
o (D) The give-way vessel must have taken action first.
 
244. (1.2.2.2E-7) BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are crossing as shown in
illustration D030RR below. Which statement is TRUE?
o (A) Vessel "B" should pass astern of vessel "A".
o (B) The vessels should pass starboard to starboard.
o (C) Vessel "B" should alter course to the right.
(D) Vessel "A" must keep clear of vessel "B".
 
245. (1.2.2.2E-9) BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel
navigating at night. You sight the red sidelight of another vessel on your port bow. The other vessel's
after masthead light is to the right of her forward masthead light. Which action should you take?
(A) hold course and speed
o (B) stop engines
o (C) alter course to port
o (D) sound the danger signal
 
246. (1.2.2.2H-19) BOTH INTERNATIONAL & INLAND A power-driven vessel has on her port side a
sailing vessel which is on a collision course. Which action is the power-driven vessel required to
take?
o (A) maintain course and speed
(B) keep clear, passing at a safe distance
o (C) stop her engines
o (D) sound one blast and turn to starboard
 
247. (1.2.2.2H-32) BOTH INTERNATIONAL & INLAND A vessel engaged in fishing shall keep out of
the way of which of the following vessels?
o (A) under sail
(B) restricted in her ability to maneuver
o (C) crossing a channel
o (D) All of the above
 
248. (1.2.2.2E-10) BOTH INTERNATIONAL & INLAND You see the lights shown in illustration
D050RR below on your port bow. What action should you take?
o (A) stop engines
o (B) alter course to port
(C) hold course and speed
o (D) sound the danger signal
 
249. (1.2.2.2E-11) BOTH INTERNATIONAL & INLAND Every vessel which is directed by these Rules
to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid which
action?
(A) crossing ahead of the other
o (B) passing starboard to starboard
o (C) passing port to port
o (D) crossing astern of the other
 
250. (1.2.2.2E-13) BOTH INTERNATIONAL & INLAND Underway at night you see the red sidelight of
a vessel well off your port bow. Which statement is TRUE?
o (A) You are required to alter course to the right.
o (B) You must stop engines.
(C) You may maintain course and speed.
o (D) You are on a collision course with the other vessel.
 
251. (1.2.2.2E-14) BOTH INTERNATIONAL & INLAND You are aboard the give-way vessel in a
crossing situation. Which action should be avoided?
(A) Cross ahead of the stand-on vessel
o (B) Slow your vessel
o (C) Back your vessel
o (D) Make a large course change to starboard
 
252. (1.2.2.2E-15) BOTH INTERNATIONAL & INLAND In a crossing situation, the vessel which has
the other on her own starboard side shall take which action?
o (A) change course to port to keep out of the way
(B) if the circumstances of the case admit, avoid crossing ahead of the other
o (C) reduce her speed
o (D) All of the above
 
253. (1.2.2.2E-16) BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead
when vessel "B" is sighted off the starboard bow as shown in illustration D028RR below. Which
vessel is the stand-on vessel?
(A) Vessel "B" is the stand-on vessel because it is to starboard of vessel "A".
o (B) Neither vessel is the stand-on vessel.
o (C) Vessel "A" is the stand-on vessel because it is to port.
o (D) Vessel "A" is the stand-on vessel because it is pushing ahead.
 
254. (1.2.2.3A-13) BOTH INTERNATIONAL & INLAND You are underway in reduced visibility. You
hear the fog signal of another vessel about 20 on your starboard bow. Risk of collision may exist.
Which action should you take?
o (A) alter course to port to pass the other vessel on its port side
o (B) slow your engines and let the other vessel pass ahead of you
o (C) alter course to starboard to pass around the other vessel
(D) reduce your speed to bare steerageway
 
255. (1.2.2.2E-17) BOTH INTERNATIONAL & INLAND In illustration D005RR below, vessel "A",
which is pushing ahead, and vessel "B" are crossing. Which is the stand-on vessel?
o (A) Vessel "A" is the stand-on vessel because she is pushing ahead.
(B) Vessel "B" is the stand-on vessel because she is to starboard of vessel "A".
o (C) Neither vessel is the stand-on vessel in this situation.
o (D) Vessel "A" is the stand-on vessel because she is to port of vessel "B".
 
256. (1.2.2.2E-18) BOTH INTERNATIONAL & INLAND Your power-driven vessel is stopped and
making no way, but is not in any way disabled. Another vessel is approaching you on your starboard
beam. Which statement is TRUE?
o (A) The other vessel must give-way since your vessel is stopped.
o (B) You should be showing the lights or shapes for a vessel not under command.
o (C) You should be showing the lights or shapes for a vessel restricted in her ability to maneuver.
(D) Your vessel is the give-way vessel in a crossing situation.
 
257. (1.2.2.2H-34) BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the
Rules?
o (A) A vessel not under command shall keep out of the way of a vessel engaged in fishing.
(B) A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a
vessel restricted in her ability to maneuver.
o (C) A vessel not under command shall keep out of the way of a vessel restricted in her ability to
maneuver.
o (D) A vessel engaged in fishing shall keep out of the way of a sailing vessel.
 
258. (1.2.2.2G-2) BOTH INTERNATIONAL & INLAND Which is TRUE of a stand-on vessel?
o (A) free to maneuver in any crossing or meeting situation as it has the right of way
o (B) required to sound the first passing signal in a meeting situation
(C) required to maintain course and speed in a crossing situation but may take action to avoid
collision
o (D) required to give-way in a crossing situation
 
259. (1.2.2.2G-3) BOTH INTERNATIONAL & INLAND The rules require that a stand-on vessel
SHALL take action to avoid collision when she determines that.
(A) collision cannot be avoided by the give-way vessel's maneuver alone
o (B) the other vessel is not taking appropriate action
o (C) the other vessel will cross ahead of her
o (D) risk of collision exists
 
260. (1.2.2 .2G-6) BOTH INTERNATIONAL & INLAND You are in charge of a stand-on vessel in a
crossing situation. The other vessel is 1.5 miles to port. Which action should you take if you believe
that risk of collision exists?
o (A) immediately sound the danger signal
o (B) hold course and speed until the point of extremis, and then sound the danger signal, taking
whatever action will best avert collision
(C) take avoiding action only after providing the give-way vessel time to take action, and
determining that her action is not appropriate
o (D) take avoiding action immediately upon determining that risk of collision exists
 
261. (1.2.2.2G-8) BOTH INTERNATIONAL & INLAND Which is TRUE if your vessel is the stand-on
vessel in a crossing situation?
o (A) the other vessel must keep her course and speed
o (B) both vessels must keep their course and speed
(C) you must keep your course and speed
o (D) you may change course and speed as the other vessel must keep clear
 
262. (1.2.2.2G-11) BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing
situation. How long may you hold your course and speed?
(A) until action by the give-way vessel alone will not prevent collision
o (B) until the other vessel gets to within a quarter mile of your vessel
o (C) until the other vessel gets to within half a mile of your vessel
o (D) until the other vessel takes necessary action
 
263. (1.1.1.1-1) INLAND ONLY Which statement is TRUE concerning the Inland Navigation Rules?
o (A) They define moderate speed.
o (B) They require communication by radiotelephone to reach a passing agreement.
(C) They list requirements for Traffic Separation Schemes.
o (d) All of the above
 
264. (1.2.2.2G-12) BOTH INTERNATIONAL & INLAND In a crossing situation, what action should the
stand-on vessel normally take?
o (A) change course and increase speed
o (B) take action to cross ahead of the other vessel
(C) maintain course and speed
o (D) take action to pass astern of the other vessel
 
265. (1.2.2 .2G-16) BOTH INTERNATIONAL & INLAND When is a stand-on vessel in a crossing
situation allowed to take action?
o (A) the vessels will pass within one mile
(B) it becomes apparent to her that the give-way vessel is not taking appropriate action
o (C) on a collision course
o (D) the relative speed of the vessels indicates collision in less than six minutes
 
266. (1.2.2.2G-17) BOTH INTERNATIONAL & INLAND When is a stand-on vessel FIRST allowed by
the Rules to take action in order to avoid collision?
o (A) When collision is imminent.
o (B) The stand-on vessel is never allowed to take action.
o (C) When the two vessels are less than half a mile from each other.
(D) When the give-way vessel is not taking appropriate action to avoid collision.
 
267. (1.2.2 .2G-18) BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing
situation, you may take action to avoid collision by your maneuver alone. When may this action be
taken?
o (A) When you determine that your present course will cross ahead of the other vessel
o (B) At any time you feel it is appropriate
(C) When it becomes apparent to you that the give-way vessel is not taking appropriate action
o (D) Only when you have reached extremis
 
268. (1.2.2.2G-19) BOTH INTERNATIONAL & INLAND What must be TRUE in order for a stand-on
vessel to take action to avoid collision by her maneuver alone?
o (A) She must determine that the give-way vessel is not taking appropriate action.
o (B) She must be in sight of the give-way vessel.
o (C) There must be risk of collision.
(D) All of the above
 
269. (1.2.2.2H-1) BOTH INTERNATIONAL & INLAND In a crossing situation on open waters,
which does a sailing vessel NOT have to "keep out of the way of"?
(A) engaged in towing
o (B) restricted in her ability to maneuver
o (C) not under command
o (D) fishing
 
270. (1.2.2.2H-2) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning
seaplanes on the water?
o (A) In situations where a risk of collision exists, a seaplane should always give-way.
(B) A seaplane on the water shall, in general, keep well clear of all vessels.
o (C) A seaplane should exhibit the lights for a vessel constrained by her draft.
o (D) A seaplane must show appropriate lights but need not exhibit shapes.
 
271. (1.2.2.2H-3) BOTH INTERNATIONAL & INLAND Vessel "A", a power-driven vessel underway,
sights vessel "B" which is a vessel underway and fishing as shown in illustration D014RR below.
Which statement is TRUE?
o (A) Vessel "A" must keep out of the way of vessel "B" because "B" is to port.
(B) Vessel "A" must keep out of the way of vessel "B" because "B" is fishing.
o (C) In this case, both vessels are required by the Rules to keep clear of each other.
o (D) Vessel "B" must keep out of the way of vessel "A" because "A" is to starboard.
 
272. (1.2.2.2H-7) BOTH INTERNATIONAL & INLAND Vessels I and II are underway as shown in
illustration D033RR below. Vessel I is a sailing vessel with the wind dead aft. Vessel II is a power-
driven vessel trawling. Which statement is TRUE?
o (A) Vessel II is to keep clear because the other vessel is to its starboard.
o (B) Both vessels are to take action to stay clear of each other.
(C) Vessel I is to keep clear because the other vessel is fishing.
o (D) Vessel II is to keep clear because she is a power-driven vessel.
 
273. (1.2.2.2H-10) BOTH INTERNATIONAL & INLAND You are aboard vessel "A" , a power-driven
vessel, on open waters and vessel "B", a sailing vessel, is sighted off your port bow as shown in
illustration D027RR below. Which vessel is the stand-on vessel?
o (A) Vessel "A" because it is to starboard of vessel "B"
o (B) Vessel "B" because it is to port of vessel "A"
(C) Vessel "B" because it is sailing
o (D) Vessel "A" because it is towing
 
274. (1.2.2.2H-12) BOTH INTERNATIONAL & INLAND A fishing vessel is approaching a vessel not
under command. Which statement is TRUE?
o (A) If the vessel not under command is a power-driven vessel, she must keep clear of the fishing
vessel.
(B) The fishing vessel must keep clear of the vessel not under command.
o (C) They must exchange whistle signals.
o (D) Both vessels are required to take action to stay clear of each other.
 
275. (1.2.2.2H-13) BOTH INTERNATIONAL & INLAND You are aboard vessel "A" which is towing on
open waters when vessel "B", a sailing vessel, is sighted off your port bow as shown in illustration
D020RR below. Which vessel is the stand-on?
o (A) Vessel "A" is the stand-on vessel because it is to starboard of vessel "B".
(B) Vessel "B" is the stand-on vessel because it is sailing.
o (C) Vessel "B" is the stand-on vessel because it is to port of vessel "A".
o (D) Vessel "A" is the stand-on vessel because it is towing.
 
276. (1.2.2.2H-14) BOTH INTERNATIONAL & INLAND In illustration D002RR below, vessel I is a
power-driven vessel. Vessel II is a sailing vessel with the wind dead aft. Which statement about this
situation is correct?
(A) Vessel I should keep out of the way of Vessel II.
o (B) Vessel II would normally be the stand-on vessel, but should stay out of the way in this
particular situation.
o (C) Vessel II should keep out of the way of Vessel I.
o (D) The Rules of Special Circumstances applies, and neither vessel is the stand-on vessel.
 
277. (1.2.2.2H-16) BOTH INTERNATIONAL & INLAND In open waters, a vessel fishing is in a
crossing situation with a vessel sailing. The sailing vessel is located on the fishing vessel's starboard
side. Which vessel is the stand-on vessel?
(A) The fishing vessel because it is fishing.
o (B) The fishing vessel because it is to port of the sailing vessel.
o (C) The sailing vessel because it is to starboard of the fishing vessel.
o (D) The sailing vessel because it is sailing.
 
278. (1.2.2.2H-18) BOTH INTERNATIONAL & INLAND A sailing vessel is NOT required to keep out
of the way of which vessel?
o (A) vessel engaged in fishing
o (B) vessel not under command
o (C) vessel restricted in her ability to maneuver
(D) power-driven vessel
 
279. (1.2.2.2H-20) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a
situation involving a fishing vessel and a vessel not under command?
o (A) If the vessel not under command is a power-driven vessel, she must keep clear of the fishing
vessel.
o (B) Both vessels are required to take action to stay clear of each other.
o (C) They are required to communicate by radiotelephone.
(D) The fishing vessel must keep out of the way of the vessel not under command.
 
280. (1.2.2.2H-26) BOTH INTERNATIONAL & INLAND In a crossing situation, a vessel fishing must
keep out of the way of a vessel which is.
o (A) under sail
(B) restricted in her ability to maneuver
o (C) engaged in pilotage duty
o (D) towing
 
281. (1.2.2.2H-22) BOTH INTERNATIONAL & INLAND You are fishing at night, and you sight a
vessel showing three lights in a vertical line. The upper and lower lights are red and the middle light
is white. Which statement is TRUE?
o (A) The rule of special circumstances applies.
(B) You must keep out of the way of the other vessel.
o (C) The other vessel is at anchor.
o (D) The other vessel is responsible to keep out of your way.
 
282. (1.2.2.2H-25) BOTH INTERNATIONAL & INLAND Which vessel should not impede the
navigation of a power-driven vessel?
o (A) A sailing vessel
(B) A seaplane
o (C) A vessel not under command
o (D) A vessel engaged in fishing
 
283. (1.2.2.2H-27) BOTH INTERNATIONAL & INLAND Which vessel(s) shall a power-driven vessel
underway "keep out of the way of"?
o (A) vessel not under command
o (B) sailing vessel
o (C) vessel engaged in fishing
(D) All of the above
 
284. (1.2.2.2H-31) BOTH INTERNATIONAL & INLAND A vessel underway and fishing shall keep out
of the way of which vessel?
o (A) vessel sailing
(B) vessel not under command
o (C) power-driven vessel underway
o (D) vessel engaged on pilotage duty
 
285. (1.2.2.2H-35) BOTH INTERNATIONAL & INLAND Unless the rules require otherwise, a sailing
vessel must keep out of the way of.
(A) a vessel trawling
o (B) another sailing vessel on a crossing course
o (C) a pilot vessel on station
o (D) an overtaking vessel
 
286. (1.2.2.2H-36) BOTH INTERNATIONAL & INLAND Except where specifically required by the
rules, a sailing vessel is NOT required to keep out of the way of which vessel?
(A) power-driven pilot vessel on station
o (B) vessel anchored
o (C) vessel setting a channel buoy
o (D) vessel engaged in fishing
 
287. (1.2.2.2H-39) BOTH INTERNATIONAL & INLAND You are involved in a crossing situation with a
vessel off your port bow. The other vessel is showing a high intensity all-round flashing red light.
Which action should you take?
(A) Maintain course and speed
o (B) Alter course to starboard
o (C) Remain clear of the vessel
o (D) Reduce Speed
 
288. (1.2.2.3A-8) BOTH INTERNATIONAL & INLAND What is required of a vessel navigating near an
area of restricted visibility?
o (A) A power-driven vessel shall have her engines ready for immediate maneuver.
o (B) If she detects another vessel by radar, she shall determine if risk of collision exists.
o (C) She must sound appropriate sound signals.
(D) All of the above
 
289. (1.2.2.3A-3) BOTH INTERNATIONAL & INLAND In fog you observe your radar and determine
that risk of collision exists with a vessel which is 2 miles off your port bow. Which action should you
take?
o (A) sound the danger signal at two-minute intervals
(B) take avoiding action as soon as possible
o (C) stop your engines
o (D) hold course and speed until the other vessel is sighted
 
290. (1.2.2.3A-15) BOTH INTERNATIONAL & INLAND You are underway in restricted visibility. You
hear the fog signal of another vessel about 22 on your starboard bow. If danger of collision exists,
which action(s) are you required to take?
o (A) alter course to port to pass the other vessel on its port side
o (B) slow your engines and let the other vessel pass ahead of you
(C) reduce your speed to bare steerageway
o (D) alter course to starboard to pass around the other vessel's stern
 
291. (1.2.2.3A-17) BOTH INTERNATIONAL & INLAND Your vessel is underway in reduced visibility.
You hear the fog signal of another vessel about 30 on your starboard bow. If danger of collision
exists, which action(s) are you required to take?
o (A) alter course to starboard to pass around the other vessel's stern
o (B) slow your engines and let the other vessel pass ahead of you
(C) reduce your speed to bare steerageway
o (D) alter course to port and pass the other vessel on its port side
 
292. (1.2.2.3A-9) BOTH INTERNATIONAL & INLAND While underway in fog, you hear the fog signal
of another vessel ahead. If a risk of collision exists, which action is required by the Rules?
o (A) sound three short blasts and back your engines
(B) slow to bare steerageway and navigate with caution
o (C) continue on your course and speed until the other vessel is sighted
o (D) stop your engines and navigate with caution
 
293. (1.2.2.3A-10) BOTH INTERNATIONAL & INLAND You are underway in restricted visibility and
hear a fog signal forward of the beam. Nothing appears on your radar screen. You must take what
action?
o (A) sound two prolonged blasts of the whistle
o (B) stop your engines
(C) slow to bare steerageway
o (D) sound the danger signal
 
294. (1.2.2.3A-14) BOTH INTERNATIONAL & INLAND You hear the fog signal of another vessel
forward of your beam. Risk of collision may exist. You are required to take which action?
o (A) stop your engines
(B) take all way off, if necessary
o (C) begin a radar plot
o (d) All of the above
 
295. (1.1.1.1-2) INLAND ONLY You are on a vessel that the Secretary has determined cannot comply
with the spacing requirement for masthead lights. What is required in this situation?
(A) The vessel's lights must comply as closely as possible.
o (B) The vessel must carry only the lights that comply with the rules; the others may be omitted.
o (C) The vessel must be altered to permit full compliance with the rules.
o (D) An all-round light should be substituted for the after masthead light and the stern light.
 
296. (1.1.1.3-3) INLAND ONLY Which term is NOT defined in the Inland Navigation Rules?
o (A) Underway
o (B) Restricted visibility
o (C) Seaplane
(D) Vessel constrained by her draft
 
297. (1.1.1.3-7) INLAND ONLY The term "Great Lakes", as defined by the Inland Rules of the Road,
does NOT include.
o (A) portions of the Calumet River
o (B) portions of the Chicago River
o (C) Saginaw Bay
(D) the St. Lawrence River to Trois-Rivieres
 
298. (1.1.2.1F-2) INLAND ONLY Two power-driven vessels are meeting in a narrow channel as
shown in illustration D037RR below. Which of the following statements is TRUE?
(A) If agreement is reached by radiotelephone whistle signals are optional.
o (B) Whistle signals must be exchanged in all situations when passing within one half mile of each
other.
o (C) If agreement is reached by radiotelephone whistle signals must still be exchanged.
o (D) None of the above
 
299. (1.1.2.1F-4) INLAND ONLY Which statement is TRUE concerning narrow channels?
o (A) The upbound vessel proceeding against the current shall initiate the maneuvering signals
when two vessels are meeting.
(B) The downbound vessel having the following current shall propose the manner and place of
passage where two vessels are meeting.
o (C) You should keep to that side of the channel which lies on your port side.
o (d) All of the above
 
300. (1.1.2.1F-7) INLAND ONLY A power-driven vessel operating in a narrow channel with a following
current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is
TRUE?
o (A) The upbound vessel must propose the manner of passing.
(B) The downbound vessel has the right of way.
o (C) The upbound vessel must initiate the required maneuvering signals.
o (d) All of the above
 
301. (1.1.2.1F-9) INLAND ONLY Your vessel is proceeding down a channel, and can safely navigate
only within the channel. Another vessel is crossing your bow from port to starboard, and you are in
doubt as to her intentions. Which statement is TRUE?
(A) The sounding of the danger signal is mandatory.
o (B) The sounding of the danger signal is optional.
o (C) You should sound one prolonged and two short blasts.
o (D) You should sound two short blasts.
 
302. (1.1.2.1F-10) INLAND ONLY A power-driven vessel proceeding downstream in a narrow channel
on the Western Rivers sights another power driven vessel moving upstream. Which vessel has the
right of way?
o (A) The vessel sounding the first whistle signal
(B) The vessel moving downstream with a following current
o (C) The vessel moving upstream against the current
o (D) The vessel located more towards the channel centerline
 
303. (1.1.2.1F-11) INLAND ONLY In a narrow channel, you are underway on power-driven vessel "A"
and desire to overtake power-driven vessel "B". After you sound two short blasts on your whistle,
vessel "B" sounds five short and rapid blasts on the whistle. What action should you take?
o (A) Pass with caution on the port side of vessel "B"
o (B) Answer the five short blast signal then stop your vessel until the other vessel initiates a signal
o (C) Slow or stop and expect radical maneuvers from "B"
(D) Hold your relative position, and then sound another signal after the situation has stabilized
 
304. (1.1.2. 1F-17) INLAND ONLY Your vessel is proceeding down a channel, and can safely navigate
only within the channel. Another vessel is crossing your bow from port to starboard, and you are in
doubt as to her intentions. Which statement is TRUE?
o (A) You should sound one prolonged and two short blasts.
o (B) You should sound two short blasts.
o (C) The sounding of the danger signal is optional.
(D) The sounding of the danger signal is mandatory.
 
305. (1.1.2.1F-19) INLAND ONLY Which is TRUE of a vessel downbound with a following current
when meeting an upbound vessel on the Western Rivers?
(A) She has the right of way only if she is power-driven.
o (B) She must wait for a whistle signal from the upbound vessel.
o (C) Neither vessel has the right of way.
o (D) She does not have the right of way, since the other vessel is not crossing the river.
 
306. (1.1.2.1F-20) INLAND ONLY A power-driven vessel operating in a narrow channel with a
following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which
statement is TRUE?
o (A) The upbound vessel must propose the manner of passing.
(B) The downbound vessel has the right of way.
o (C) The upbound vessel must initiate the required maneuvering signals.
o (d) All of the above
 
307. (1.1.2.1F-23) INLAND ONLY A power-driven vessel operating in a narrow channel with a
following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which
statement is TRUE?
o (A) The downbound vessel must propose the manner and place of passage.
o (B) The downbound vessel must initiate the required maneuvering signals.
o (C) The downbound vessel has the right of way.
(D) All of the above
 
308. (1.1.2.1F-26) INLAND ONLY You are on a power-driven vessel proceeding down a channel, with
the current, on a river on the Great Lakes System. If you meet another power-driven vessel who is
upbound, what is your responsibility?
(A) Proposing a safe way to pass
o (B) Waiting for the other vessel to signal her intentions, and then answering promptly
o (C) Backing down to get out of the way of the other vessel
o (d) All of the above
 
309. (1.1.2.2C-2) INLAND ONLY You are on power-driven vessel "A" and power-driven vessel "B"
desires to overtake you on the starboard side as shown in illustration D038RR below. After the
vessels have exchanged one blast signals what action should you take?
(A) Hold course and speed
o (B) Alter course to the left or right to give vessel "B" more sea room
o (C) Alter course to the left
o (D) Slow your vessel until vessel "B" has passed
 
310. (1.1.2.2D-1) INLAND ONLY Which statement is TRUE of a power-driven vessel proceeding
downbound with the current, when meeting an upbound vessel on the Western Rivers?
(A) She shall propose the manner of passage.
o (B) She shall not impede the upbound vessel.
o (C) She shall pass on the port side of the other.
o (d) All of the above
 
311. (1.1.2.2D-5) INLAND ONLY Your power-driven vessel is meeting another vessel head-on. To
comply with the steering and sailing rules what action should you take?
o (A) sound the danger signal
(B) exchange one short blast
o (C) sound one prolonged and two short blasts
o (D) exchange two short blasts
 
312. (1.1.2.2D-6) INLAND ONLY When two power-driven vessels are meeting on the Great Lakes,
Western Rivers, or waters specified by the Secretary, where there is a current, which vessel shall
sound the first passing signal?
o (A) Either vessel
(B) The vessel downbound with a following current
o (C) The vessel that is towing regardless of the current
o (D) The vessel going upstream stemming the current
 
313. (1.1.2.2E-2) INLAND ONLY A power-driven vessel crossing a river on the Great Lakes or
Western Rivers, must keep out of the way of which of the following power-driven vessels?
o (A) Descending the river with a tow
o (B) Ascending the river without a tow
o (C) Ascending the river with a tow
(D) All of the above
 
314. (1.1.3.11-1) INLAND ONLY A barge more than 50 meters long is required to show how many
white anchor lights when anchored in a Secretary approved "special anchorage area"?
(A) 2
o (B) 1
o (C) 3
o (D) None
 
315. (1.1.3.11-3) INLAND ONLY At night, a barge moored in a slip used primarily for mooring
purposes shall exhibit which of the following?
o (A) A flashing yellow light at each corner
o (B) A white light at each corner
(C) No required lights
o (D) A red light at the bow and stern
 
316. (1.1.3.11-5) INLAND ONLY A fleet of moored barges extends into a navigable channel. What is
the color of the lights on the barges?
o (A) Yellow
(B) White
o (c) Amber
o (D) Red
 
317. (1.1.3.11-6) INLAND ONLY At night, which lights are required on barges moored in a group
formation, more than two barges wide, and located where other vessels cannot navigate on both
sides of the group?
o (A) Two red lights in a vertical line at the corner extremities of the group
o (B) All-round white lights placed at the corners of each barge in the group
(C) Two unobstructed all-round white lights
o (D) Two unobstructed all-round yellow lights
 
318. (1.1.3.12-1) INLAND ONLY Yellow lights are NOT used to identify which of the following?
(A) A seaplane on the water
o (B) Purse seiners
o (C) A dredge pipeline on a trestle
o (D) The heads of tows being pushed ahead by tugboats
 
319. (1.1.3.2-3) INLAND ONLY Which of the following is true regarding a "special flashing light"?
o (A) It must be yellow in color.
o (B) It must not show through an arc of more than 225.
o (C) It must be placed as far forward as possible.
(D) All of the above
 
320. (1.1.3.2-4) INLAND ONLY What is true of a "special flashing light"?
o (A) It flashes at the rate of 120 flashes per minute.
(B) It may show through an arc of not less than 180.
o (C) It is optional below the Baton Rouge Highway Bridge.
o (d) All of the above
 
321. (1.1.3.5-3) INLAND ONLY At night, you see the lights shown in illustration D075RR below.
These lights are shown by what type of vessel?
o (A) barge being towed astern
(B) tug pushing a barge ahead
o (C) tug towing a barge astern
o (D) barge being pushed ahead
 
322. (1.1.3.5-4) INLAND ONLY You are approaching a vessel displaying the lights as shown in
illustration D075RR below. What type of situation is this?
(A) overtaking situation
o (B) crossing situation
o (C) meeting head-on situation
o (D) special circumstance situation
 
323. (1.1.3.5-7) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D041RR below and will pass 1/4 mile apart. Which is one of the lights on vessel "B" that you will see
if you are on vessel "A"?
o (A) yellow towing light
o (B) red sidelight
(C) special flashing light
o (D) All of the above
 
324. (1.1.3.5-9) INLAND ONLY A power-driven vessel when pushing ahead or towing alongside on
the Western Rivers (above the Huey P. Long Bridge on the Mississippi River at mile 106.1) shall
exhibit which of the following configurations?
o (A) one masthead light, sidelights, and stern light
(B) sidelights and two towing lights
o (C) two masthead lights, sidelights, and two towing lights
o (D) two masthead lights, sidelights, and stern light
 
325. (1.1.3.5-13) INLAND ONLY What lights are required for a barge being pushed ahead, not being
part of a composite unit?
(A) Sidelights and a special flashing light
o (B) Sidelights, a special flashing light, and a stern light
o (C) Sidelights, a towing light, and a stern light
o (D) Sidelights and a stern light
 
326. (1.1.3.5-14) INLAND ONLY When is a vessel required to exhibit a special flashing light?
(A) when being pushed ahead
o (B) when towed astern
o (C) when at anchor in a fairway
o (d) All of the above
 
327. (1.1.3.5-15) INLAND ONLY What MAY be used to indicate the presence of a partly submerged
object being towed?
o (A) Two all-round yellow lights at each end of the tow
o (B) A black cone, apex upward
(C) The beam of a searchlight from the towing vessel shown in the direction of the tow
o (d) All of the above
 
328. (1.1.3.5-17) INLAND ONLY Which lights are required for a single barge being towed alongside?
o (A) Sidelights and a special flashing light
o (B) Sidelights, a towing light, and a stern light
o (C) Sidelights and a stern light
(D) Sidelights, a special flashing light, and a stern light
 
329. (1.1.3.5-18) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D041RR below and will pass 1/4 mile apart. Which is one of the lights on vessel "B" that you will see
if you are on vessel "A"?
o (A) yellow towing light
(B) special flashing light
o (C) red sidelight
o (D) All of the above
 
330. (1.1.3.8-2) INLAND ONLY You see the lights shown in illustration D085RR below while
proceeding in a channel. What action should you take?
o (A) Proceed at full sea speed through the two sets of double red lights.
o (B) Stop the vessel and await the red lights to change to green.
(C) Slow down and pass between the two sets of double red lights.
o (D) None of the above
 
331. (1.1.3.8-6) INLAND ONLY While underway you sight the lights shown in illustration D081RR
below with the yellow lights flashing, what action should you take?
o (A) wait until the vessel ahead crosses your bow
o (B) stop until the red lights turn green
(C) pass between the two sets of vertical red lights
o (D) proceed leaving all the lights on your starboard side
 
332. (1.1.3.8-7) INLAND ONLY Which light display would mark the opening in a pipeline where
vessels could pass through?
o (A) Three red lights in a vertical line on each side of the opening
o (B) Three white lights in a vertical line on each side of the opening
(C) Two red lights in a vertical line on each side of the opening
o (D) Two white lights in a vertical line on each side of the opening
 
333. (1.1.4.3-1) INLAND ONLY A power-driven vessel intends to overtake another power-driven
vessel on the overtaken vessel's port side. What whistle signal should be sounded in order to state
this intention?
o (A) 1 short blast
o (B) 1 prolonged and 1 short blast
(C) 2 short blasts
o (D) 2 prolonged and 2 short blasts
 
334. (1.1.4.3-8) INLAND ONLY Passing signals shall be sounded on inland waters by.
o (A) a towing vessel when meeting another towing vessel on a clear day with a 0.6 mile CPA
(Closest Point of Approach)
(B) a power-driven vessel when crossing less than half a mile ahead of another power-driven
vessel
o (C) all vessels upon sighting another vessel rounding a bend in the channel
o (d) All of the above
 
335. (1.1.4.3-40) INLAND ONLY You are meeting another power-driven vessel head-on and sound
one short blast as a passing signal. The other vessel answers with two short blasts. What should be
your next action?
o (A) Pass astern of the other vessel.
(B) Sound the danger signal.
o (C) Pass on the other vessel's starboard side.
o (D) Hold your course and speed.
 
336. (1.1.4.3-71) INLAND ONLY A light used to signal passing intentions must be an.
o (A) alternating red and yellow light
o (B) all-round white light only
o (C) alternating white and yellow light
(D) all-round white or yellow light
 
337. (1.1.4.3-70) INLAND ONLY You are a power-driven vessel proceeding in a channel in inland
waters and are meeting an outbound power-driven vessel. Your responsibilities include .
(A) exchanging whistle signals if passing within half a mile
o (B) giving the outbound vessel the right of way
o (C) keeping to that side of the channel which is on your vessel's port side
o (D) stopping your vessel and letting the outbound vessel initiate signals for passing
 
338. (1.1.4.3-7) INLAND ONLY Signals shall be sounded by a power-driven vessel intending to
overtake.
o (A) any vessel when within half a mile of that vessel
(B) another power-driven vessel when both power-driven vessels are in sight of one another
o (C) another power-driven vessel only when within half a mile of that power-driven vessel
o (D) any vessel when both are in sight of one another
 
339. (1.1.4.3-72) INLAND ONLY Which statement is TRUE concerning the light used for maneuvering
signals?
o (A) It must be an all-round light.
o (B) It may be white or yellow.
o (C) It must be synchronized with the whistle.
(D) All of the above
 
340. (1.1.4.3 -27) INLAND ONLY One and two short blast signals must be sounded on inland waters
when.
(A) two power-driven vessel are in sight of one another and are meeting within a half mile
o (B) two power-driven vessels are in sight of one another and will cross within one mile
o (C) two sailing vessels are in sight of one another and meeting within a quarter mile
o (D) two power-driven vessels are crossing within half a mile of each other and NOT in sight of
each other
 
341. (1.1.4.3-3) INLAND ONLY You are on a power-driven vessel "I" as shown in illustration D036RR
below. Vessel "II" is a power-driven vessel engaged in fishing that will pass within 1/2 a mile of your
vessel. Which action should you take?
(A) Sound one short blast and await response from the fishing vessel.
o (B) Sound one short blast, reduce speed and turn to starboard.
o (C) Sound the danger signal and reduce speed.
o (D) Hold course and speed without giving a signal.
 
342. (1.1.4.3-50) INLAND ONLY You are approaching a sharp bend in a river. You have sounded a
prolonged blast and it has been answered by a vessel on the other side of the bend. Which
statement is TRUE?
(A) If power-driven, both vessels must exchange passing signals when in sight and passing within
half mile of each other.
o (B) Both vessels must immediately sound passing signals whether or not they are in sight of each
other.
o (C) No further whistle signals are necessary.
o (D) The vessel downriver must stop her engines and navigate with caution.
 
343. (1.1.4.3-14) INLAND ONLY While underway and in sight of another vessel a mile ahead you put
your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
(A) You need not sound any whistle signals.
o (B) You must sound whistle signals only if the vessels are meeting.
o (C) You must sound three short blasts on the whistle.
o (D) You must sound one blast if backing to starboard.
 
344. (1.1.4.3-31) INLAND ONLY Two power-driven vessels are meeting in the situation as shown in
illustration D037RR below. What does one short blast by vessel "A" mean?
o (A) "I intend to pass on your starboard side"
o (B) "My intention is to hold course and speed"
(C) "I intend to leave you on my port side"
o (D) "I am altering my course to starboard"
 
345. (1.1.4.3-18) INLAND ONLY Two vessels in a crossing situation have reached agreement by
radiotelephone. In this situation, which statement is TRUE concerning whistle signals?
o (A) required when crossing within one mile
o (B) required
(C) not required, but may be sounded
o (D) required if crossing within half a mile
 
346. (1.1.4.3-16) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D029RR below and will pass 1/4 mile apart. Which statement is TRUE?
o (A) The vessels should exchange two blast whistle signals and pass port to port.
o (B) Whistle signals must be exchanged in all situations when passing within one half mile.
(C) If a passing agreement is reached by radiotelephone whistle signals are optional.
o (D) The vessels should pass port to port and must sound whistle signals only if either vessel
changes course.
 
347. (1.1.4.3-11) INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and
wish to leave her on your starboard side. You may.
o (A) sound four short blasts
o (B) proceed to overtake her without sounding whistle signals
(C) attempt to contact her on the radiotelephone to arrange for the passage
o (d) All of the above
 
348. (1.1.4.3-37) INLAND ONLY Two power-driven vessels are crossing within a half a mile of each
other as shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. What
should Vessel "B" sound?
o (A) two short blasts
(B) one short blast
o (C) three short blasts
o (D) two prolonged blasts followed by two short blasts
 
349. (1.1.4.3-20) INLAND ONLY At night, a light signal consisting of two flashes by a vessel indicates
o (A) an intention to communicate over radiotelephone
(B) an intention to leave another vessel to starboard
o (C) that the vessel is in distress
o (D) an intention to leave another vessel to port
 
350. (1.1.4.3-33) INLAND ONLY Two power-driven vessels are meeting in the situation as shown in
illustration D037RR below. What does one short blast from either vessel mean?
o (A) "I intend to hold course and speed."
o (B) "I intend to pass on your starboard side."
(C) "I intend to leave you on my port side."
o (D) "I am altering my course to starboard."
 
351. (1.1.4.3-15) INLAND ONLY When power-driven vessels are in sight of one another, when shall
passing signals be sounded?
(A) meeting or crossing within half a mile of each other
o (B) crossing within one mile of each other
o (C) meeting or crossing at any distance
o (D) meeting within one mile of each other
 
352. (1.1.4.3-22) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D029RR below and will pass 1/4 mile apart. Which statement is TRUE?
o (A) The vessels should exchange two blast signals and pass port to port.
o (B) Whistle signals must be exchanged in all cases when passing within one half mile of each
other.
(C) If a passing agreement is reached by radiotelephone, whistle signals are optional, and the
vessels should pass starboard to starboard as agreed.
o (D) The vessels should pass port to port and must sound whistle signals only if either vessel
changes course.
 
353. (1.1.4.3-48) INLAND ONLY Under the Inland Navigation Rules, what is the meaning of a one
short blast signal used when meeting another vessel?
o (A) "I am turning to port."
o (B) "I intend to leave you on my starboard side."
o (C) "I am turning to starboard."
(D) "I intend to leave you on my port side."
 
354. (1.1.4.3 -23) INLAND ONLY Two power-driven vessels, "A" and "B" , are meeting on a river as
shown in illustration D041RR below and will pass about 1/4 mile apart. What action should the
vessels take?
o (A) The vessels should exchange one blast whistle signals and pass starboard to starboard.
(B) The vessels should exchange two blast whistle signals and pass starboard to starboard.
o (C) The vessels should pass starboard to starboard and must sound whistle signals only if either
vessel changes course.
o (D) Both vessels should continue on course and pass without sounding any whistle signals.
 
355. (1.1.4.3-28) INLAND ONLY Under the Inland Navigation Rules, what is the meaning of the two
short blasts signal used when meeting another vessel?
o (A) "I intend to leave you on my port side."
o (B) "I am turning to starboard."
o (C) "I am turning to port."
(D) "I intend to leave you on my starboard side."
 
356. (1.1.4.3-62) INLAND ONLY You are meeting another vessel in inland waters, and she sounds
one short blast on the whistle. What does this signal mean?
o (A) the vessel is changing course to starboard
o (B) the vessel desires to depart from the Rules
(C) the vessel intends to leave you on her port side
o (D) the vessel is changing course to port
 
357. (1.1.4.3-29) INLAND ONLY Vessels "A" and "B" are meeting on a river as shown in illustration
D029RR below and will pass about 1/4 mile apart. Which statement is TRUE?
o (A) Both vessels should continue on course and pass without sounding any whistle signals.
o (B) The vessels should pass port to port and must sound whistle signals only if either vessel
changes course.
o (C) The vessels should exchange two blast whistle signals and pass port to port.
(D) The vessels should exchange two blast whistle signals and pass starboard to starboard.
 
358. (1.1.4.3-73) INLAND ONLY You are proceeding against the current on a river in the Great Lakes
System. You are meeting a downbound vessel. Both vessels are power-driven. The other vessel
sounds one short blast. What action must you take?
o (A) change course to port
o (B) hold course and speed
(C) sound one short blast
o (D) sound three short blasts
 
359. (1.1.4.3-55) INLAND ONLY When power-driven vessels are crossing, what does a signal of one
short blast by either vessel mean?
o (A) "I am altering course to starboard"
o (B) "I intend to change course to starboard"
(C) "I intend to leave you on my port side"
o (D) "I intend to hold course and speed"
 
360. (1.1.4.3-32) INLAND ONLY You are underway in a narrow channel, and are being overtaken by
another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass
you on your starboard side. What is your signal of agreement?
(A) one short blast
o (B) two prolonged blasts
o (C) two prolonged followed by two short blasts
o (D) one prolonged, one short, one prolonged, and one short blast in that order
 
361. (1.1.4.3-60) INLAND ONLY When power-driven vessels are in a crossing situation, what does
one short blast by either vessel indicate?
o (A) "I intend to change course to starboard"
o (B) "I intend to hold course and speed"
(C) "I intend to leave you on my port side"
o (D) "I request a departure from the rules"
 
362. (1.1.4.3-67) INLAND ONLY Which signal must a power-driven vessel give, in addition to one
prolonged blast, when backing out of a berth with another vessel in sight 0.5 nm away?
o (A) 1 blast
o (b) 2 short blasts
(C) 3 short blasts
o (D) no additional signal
 
363. (1.1.4.3-43) INLAND ONLY In a narrow channel, a power-driven vessel desiring to overtake
another power-driven vessel on the other vessel's starboard side will sound which whistle signal?
(A) one short blast
o (B) two prolonged blasts followed by two short blasts
o (C) two short blasts
o (D) two prolonged blasts followed by one short blast
 
364. (1.1.4.3-64) INLAND ONLY You have made your vessel up to a tow and are moving from a pier
out into the main channel. Your engines are turning ahead. What whistle signal should you sound?
(A) One prolonged blast
o (B) Three long blasts
o (C) Five or more short rapid blasts
o (D) One prolonged and two short blasts
 
365. (1.1.4.3-35) INLAND ONLY Two power-driven vessels are meeting in the situation as shown in
illustration D037RR below and will pass within 1/2 mile of each other. What does two short blasts
from either vessel mean?
(A) "I intend to leave you on my starboard side."
o (B) "I am altering my course to port."
o (C) "I am altering my course to starboard."
o (D) "I intend to leave you on my port side."
 
366. (1.1.4.3-56) INLAND ONLY While underway in a harbor you hear a vessel sound a prolonged
blast. What does this signal indicate?
o (A) desires to overtake your vessel
o (B) is at anchor
o (C) is backing her engines
(D) is moving from a dock
 
367. (1.1.4.3-46) INLAND ONLY You are overtaking another power-driven vessel in a narrow channel.
The other vessel will have to move to allow you to pass. You wish to overtake the other vessel on
her starboard side. What should be your first whistle signal?
o (A) two prolonged blasts followed by one short blast
(B) one short blast
o (C) two prolonged blasts followed by two short blasts
o (D) two short blasts
 
368. (1.1.4.3-42) INLAND ONLY You are on power-driven vessel "A" in a narrow channel as shown in
illustration D032RR below. Power-driven vessel "B" sounds two short blasts. What signal should you
sound if you are in agreement?
(A) sound two short blasts
o (B) sound two prolonged followed by two short blasts
o (C) not answer the whistle signals from vessel "B"
o (D) None of the above
 
369. (1.1.4.3-53) INLAND ONLY What whistle signal would you sound if you are overtaking another
power-driven vessel and desire to pass on her left or port hand?
o (A) one long blast
(B) two short blasts
o (C) two prolonged blasts followed by two short blasts
o (D) one short blast
 
370. (1.1.4.3-54) INLAND ONLY What is the whistle signal used to indicate a power-driven vessel
leaving a dock?
o (A) One short blast
(B) One prolonged blast
o (C) No signal is necessary
o (D) Three short blasts
 
371. (1.1.4.3-47) INLAND ONLY You are overtaking another power-driven vessel and sound a whistle
signal indicating that you intend to pass the vessel along her starboard side. If the other vessel
answers your signal with five short and rapid blasts, you should.
o (A) pass the other vessel along her starboard side
o (B) not overtake the other vessel until she sounds another five short and rapid blast signal
(C) not overtake the other vessel until both vessels exchange the same passing signal
o (D) sound five short and rapid blasts and pass along her starboard side
 
372. (1.1.4.3-59) INLAND ONLY What is the required whistle signal for a power-driven vessel leaving
a dock or berth?
o (A) One short blast
(B) One prolonged blast
o (C) Two short blasts
o (D) Two prolonged blasts
 
373. (1.1.4.3-63) INLAND ONLY You are overtaking another power-driven vessel in a narrow channel.
The other vessel will have to move to allow you to pass. You wish to overtake the other vessel and
leave her on your starboard side. What would be your FIRST whistle signal?
o (A) one short blast
o (B) two prolonged blasts followed by two short blasts
o (C) two prolonged blasts followed by one short blast
(D) two short blasts
 
374. (1.1.4.3-51) INLAND ONLY A power-driven vessel, when leaving a dock or berth, must sound
what signal?
(A) A prolonged blast
o (b) A long blast
o (C) No signal is required.
o (D) Three short blasts
 
375. (1.1.4.3-65) INLAND ONLY What signal is a power-driven vessel, when leaving a dock or
berth, required to sound?
o (A) no signal is required.
o (B) four short blasts
o (C) one long blast
(D) one prolonged blast
 
376. (1.1.4.3-52) INLAND ONLY You are overtaking another power-driven vessel and sound a whistle
signal indicating that you intend to pass the vessel along her starboard side. If the other vessel
answers your signal with five short and rapid blasts, what action should you take?
o (A) pass the other vessel along her starboard side
o (B) sound five short and rapid blasts and pass along her starboard side
(C) not overtake the other vessel until both vessels exchange the same passing signal
o (D) not overtake the other vessel until she sounds another five short and rapid blast signal
 
377. (1.1.4.3-66) INLAND ONLY You are overtaking another power-driven vessel in a narrow channel.
The other vessel will have to move to allow you to pass. You wish to overtake the other vessel and
leave her on your starboard side. What should be your first whistle signal?
o (A) one short blast
o (B) two prolonged blasts followed by two short blasts
o (C) two prolonged blasts followed by one short blast
(D) two short blasts
 
378. (1.1.4.3-74) INLAND ONLY Two power-driven vessels, "A" and "B" , are meeting in a narrow
channel as shown in illustration D029RR below. Which statement is TRUE concerning whistle
signals between the vessels?
o (A) Vessel "A" should sound one short blast and vessel "B" should sound two short blasts.
o (B) Both vessels should sound one short blast.
(C) Both vessels should sound two short blasts.
o (D) Neither vessel should sound any signal as no course change is necessary.
 
379. (1.1.4.4-1) INLAND ONLY Which statement is TRUE concerning the fog signal of a canal boat 25
meters in length, anchored in a "special anchorage area" approved by the Secretary?
(A) The vessel is not required to sound a fog signal.
o (B) The vessel shall sound three blasts on the whistle every 2 minutes.
o (C) The vessel shall ring a bell for 5 seconds every minute.
o (D) The vessel shall sound one blast of the whistle every 2 minutes.
 
380. (1.1.4.4-2) INLAND ONLY Which statement is TRUE concerning the fog signal of a barge 35
meters in length, anchored in a "special anchorage area" approved by the Secretary?
o (A) The vessel shall sound three blasts on the whistle every 2 minutes.
o (B) The vessel shall sound one blast of the whistle every 2 minutes.
(C) The vessel is not required to sound a fog signal.
o (D) The vessel shall ring a bell for 5 seconds every minute.
 
381. (1.1.4.4-3) INLAND ONLY Which statement is TRUE concerning the fog signal of a vessel 15
meters in length, anchored in a "special anchorage area" approved by the Secretary?
o (A) The vessel shall sound three blasts on the whistle every 2 minutes.
o (B) The vessel shall ring a bell for 5 seconds every minute.
(C) The vessel is not required to sound a fog signal.
o (D) The vessel shall sound one blast of the foghorn every 2 minutes.
 
382. (1.1.5.6-31) INLAND ONLY A flashing blue light is used to identify which of the following
vessels?
o (A) dredge pipelines on trestles
o (B) air-cushion vessels in the non-displacement mode
(C) law enforcement vessels
o (D) U.S. submarines
 
383. (1.1.5.6-11) INLAND ONLY A law enforcement vessel patrolling a marine regatta may exhibit a
flashing blue light or which of the following alternates?
o (A) two amber lights in a horizontal line
(B) an alternately flashing red and yellow light
o (C) a fixed green light over a red flashing light
o (D) a high intensity flashing white light (strobe)
 
384. (1.1.5.6-13) INLAND ONLY A commercial vessel engaged in public safety activities may display
a(n) identity light(s). Which of the following is appropriate for these activities?
o (A) alternately flashing blue and red light
o (B) flashing blue light
o (C) flashing yellow light
(D) alternately flashing red and yellow light
 
385. (1.1.5.6-16) INLAND ONLY Which of the following may be displayed by a commercial vessel
engaged in public safety activities?
o (A) alternately flashing blue and red light
(B) alternately flashing red and yellow light
o (C) flashing blue light
o (D) flashing yellow light
 
386. (1.1.5.6-24) INLAND ONLY Which light(s) are permitted ONLY for law enforcement vessels?
o (A) a flashing yellow light
(B) a flashing blue light
o (C) an alternately flashing red and yellow light
o (D) two red lights in a vertical line
 
387. (1.1.5.6-15) INLAND ONLY A vessel engaged in public safety activities may display an
alternately flashing red and yellow light. Which of the following vessels may exhibit this special light?
o (A) a vessel not under command
(B) a vessel engaged in search and rescue
o (C) a vessel restricted in her ability to maneuver
o (D) a vessel engaged in river bank protection
 
388. (1.1.5.6-20) INLAND ONLY Which of the following is indicated by a vessel displaying a flashing
blue light?
(A) a law enforcement vessel
o (B) a vessel transferring dangerous cargo
o (C) a work boat
o (D) a vessel engaged in a race
 
389. (1.1.5.6-22) INLAND ONLY A vessel engaged in public safety activities may display an
alternately flashing red and yellow light. This special light may be used by a vessel engaged in which
of the following?
o (A) law enforcement
o (B) a pair of trawlers hauling nets
o (C) river bank protection
(D) patrolling a regatta
 
390. (1.1.5.6-23) INLAND ONLY A vessel engaged in public safety activities may display an
alternately flashing red and yellow light. This special light may be used by a vessel engaged in which
of the following?
o (A) submarine operations
(B) firefighting
o (C) river bank protection
o (D) law enforcement
 
391. (1.1.5.6-29) INLAND ONLY You sight a vessel displaying an alternating red and yellow light.
What does this light indicate?
(A) a vessel engaged in public safety activities
o (B) a law enforcement vessel
o (C) a vessel in distress
o (D) a vessel restricted in its ability to maneuver
 
392. (1.3.1.3-4) INTERNATIONAL ONLY Which statement applies to a vessel "constrained by her
draft"?
o (A) The term applies only to ALL vessels that are navigating in marked channels with following
currents.
o (B) The vessel must be over 100 meters in length.
(C) She is severely restricted in her ability to change her course because of her draft in relation to
the available depth of water.
o (D) She is designated as a "vessel restricted in her ability to maneuver".
 
393. (1.3.1.3-5) INTERNATIONAL ONLY Which vessel is NOT regarded as being "restricted in her
ability to maneuver"?
(A) A vessel constrained by her draft
o (B) A towing vessel with tow unable to deviate from its course
o (C) A vessel engaged in dredging
o (D) A vessel servicing an aid to navigation
 
394. (1.3.2.1F-1) INTERNATIONAL ONLY You are operating a vessel in a narrow channel. Your
vessel must stay within the channel to be navigated safely. Another vessel is crossing your course
from starboard to port, and you are in doubt as to his intentions. According to Rule 9, which
statement is TRUE?
o (A) You should sound one short blast to indicate that you are holding course and speed
o (B) You are required to back down
(C) You may sound the danger signal
o (D) You must sound one prolonged and two short blasts
 
395. (1.3.2.1F-2) INTERNATIONAL ONLY Which vessel is required to sound two prolonged blasts
followed by one short blast on the whistle?
o (A) A mine clearance vessel while underway
(B) An overtaking vessel in a narrow channel
o (C) A fishing vessel
o (D) A vessel anchored
 
396. (1.3.2.1F-3) INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and
you intend to pass along the vessel's port side. This action can only take place if the vessel to be
overtaken takes action to permit safe passage. How should you signal your intention?
o (A) Two short blasts only
o (B) Two prolonged blasts only
o (C) Two short blasts followed by two prolonged blasts
(D) Two prolonged followed by two short blasts
 
397. (1.3.2.1F-4) INTERNATIONAL ONLY A sailing vessel is overtaking a power-driven vessel in a
narrow channel, so as to pass on the power-driven vessel's port side. The overtaken vessel will have
to move to facilitate passage. Which statement is TRUE of the sailing vessel?
o (A) The sailing vessel is the stand-on vessel and would sound two prolonged blast followed by
one short blast
o (B) The sailing vessel is the give-way vessel and would sound no whistle signal
(C) The sailing vessel is the give-way vessel and would sound two prolonged blasts followed by
two short blasts
o (D) The sailing vessel is the stand-on vessel and would sound no whistle signal
 
398. (1.3.2.1F-5) INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel on
the overtaking vessel's port side. This action requires the overtaken vessel to take action to permit
safe passing. How should you signal your intentions?
o (A) Sound two prolonged blasts on the whistle
o (B) Sound two short blasts
o (C) No signal is necessary
(D) Sound two prolonged followed by two short blasts
 
399. (1.3.2.1F-6) INTERNATIONAL ONLY In which case would an overtaking vessel sound a whistle
signal of two prolonged followed by one short blast?
o (A) When overtaking on open waters
o (B) When overtaking in restricted visibility
o (C) When no other vessels are in the immediate area
(D) When overtaking in a narrow channel
 
400. (1.3.2.1F-7) INTERNATIONAL ONLY You are in charge of a 250 meter freight vessel
constrained by her draft proceeding down a narrow channel. There is a vessel engaged in fishing on
your starboard bow half a mile away. According to Rule 9, which statement is TRUE?
o (A) You are to slow to bare steerageway until clear of the fishing vessel.
(B) If you are in doubt as to the fishing vessel's intentions you may sound at least five short and
rapid blasts on the whistle.
o (C) You must sound one prolonged blast to alert the fishing vessel.
o (D) You are not to impede the fishing vessel.
 
401. (1.3.2. 1F-8) INTERNATIONAL ONLY Your vessel is crossing a narrow channel. A vessel to port
is within the channel and crossing your course. She is showing a black cylinder. What is your
responsibility?
o (A) Sound the danger signal.
o (B) Hold your course and speed.
(C) Do not cross the channel if you might impede the other vessel.
o (D) Begin an exchange of passing signals.
 
402. (1.3.2.1F-9) INTERNATIONAL ONLY In a narrow channel, a vessel trying to overtake another on
the other vessel's port side, would sound which whistle signal?
(A) Two prolonged blasts followed by two short blasts
o (B) Two prolonged blasts followed by one short blast
o (C) Two short blasts
o (D) One short blast
 
403. (1.3.2.1F-10) INTERNATIONAL ONLY In a narrow channel, a signal of intent which must be
answered by the other vessel, is sounded during which of the following situations?
o (A) A vessel crossing the course of another
o (B) A vessel meeting another head-on
(C) A vessel overtaking in a narrow channel
o (d) All of the above
 
404. (1.3.2.1F-11) INTERNATIONAL ONLY In a narrow channel, an overtaking vessel which intends
to pass on the other vessel's port side would sound which signal?
(A) Two prolonged followed by two short blasts
o (B) Two short blasts
o (C) One prolonged followed by two short blasts
o (D) One short blast
 
405. (1.3.2. 1F-12) INTERNATIONAL ONLY In a narrow channel, an overtaking vessel intends to
PASS on the other vessel's port side. This overtaking action can only take place if the vessel to be
overtaken takes action to permit safe passing. Which signal would the overtaking vessel sound?
o (A) One prolonged followed by two short blasts
o (B) Two short blasts
(C) Two prolonged followed by two short blasts
o (D) One short blast
 
406. (1.3.2. 1F-13) INTERNATIONAL ONLY You are underway in a narrow channel, and you are
being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating
his intention to pass your vessel on your starboard side, you signal your agreement by sounding
which signal?
o (A) One short, one prolonged, one short, and one prolonged blast
o (B) Two prolonged followed by two short blasts
o (C) Two prolonged blasts
(D) One prolonged, one short, one prolonged, and one short blast
 
407. (1.3.2. 1F-14) INTERNATIONAL ONLY You are underway in a narrow channel, and you are
being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating
his intention to pass your vessel on your starboard side, which signal would you sound to indicate
your agreement?
(A) One prolonged, one short, one prolonged, and one short blast
o (B) Two prolonged blasts
o (C) Two prolonged followed by two short blasts
o (D) One short, one prolonged, one short, and one prolonged blast
 
408. (1.3.2.2E-1) INTERNATIONAL ONLY In international waters, you are on Vessel "I" in the
situation as shown in illustration D036RR below. Vessel "II" sounds one short blast. Which action
should you take?
o (A) Sound two short blasts, slow down and turn to port
o (B) Sound one short blast and slow down or turn to starboard.
(C) Hold course and speed
o (D) Sound one short blast and hold course and speed.
 
409. (1.3.2.2H-1) INTERNATIONAL ONLY You are on a power-driven vessel "I" as shown in
illustration D036RR below. Vessel "II" is a vessel engaged in fishing. The vessels will pass within 1/2
mile of each other. Which action should you take?
o (A) Hold course and speed without giving a signal.
o (B) Sound the danger signal and slow to moderate speed.
(C) Sound one short blast, turn to starboard.
o (D) Sound one short blast and hold course and speed.
 
410. (1.3.2.2H-2) INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all
the others?
o (A) A vessel engaged in fishing
(B) A vessel pushing a barge
o (C) A vessel restricted in her ability to maneuver
o (D) A vessel constrained by her draft
 
411. (1.3.2 .2H-3) INTERNATIONAL ONLY You are on a power-driven vessel "I" as shown in
illustration D036RR below. Vessel "II" is a vessel engaged in fishing within 1/2 a mile of your vessel.
Which action should you take?
o (A) Sound one short blast, and await a response
o (B) Hold course and speed without giving a signal
o (C) Sound two short blasts, and await a response
(D) Change course or speed to avoid vessel "II"
 
412. (1.3.2.2H-4) INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
o (A) A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing.
(B) A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a
vessel restricted in her ability to maneuver.
o (C) A vessel not under command shall avoid impeding the safe passage of a vessel constrained
by her draft.
o (D) A vessel not under command shall keep out of the way of a vessel restricted in her ability to
maneuver.
 
413. (1.3.2.2H-5) INTERNATIONAL ONLY Which vessel shall avoid impeding the safe passage of a
vessel constrained by her draft?
(A) A sailing vessel
o (B) A vessel not under command
o (C) A vessel restricted in her ability to maneuver
o (d) All of the above
 
414. (1.3.2 .2H-7) INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all
the others?
o (A) A vessel constrained by her draft
(B) A vessel on pilotage duty
o (C) A vessel engaged in fishing
o (D) A vessel restricted in her ability to maneuver
 
415. (1.3.2.2H-8) INTERNATIONAL ONLY Which vessel is to keep out of the way of the others?
o (A) A vessel engaged in underwater operations
(B) A vessel engaged in trawling
o (C) A vessel constrained by her draft
o (D) A vessel not under command
 
416. (1.3.2.3A-1) INTERNATIONAL ONLY What statement is TRUE when operating in fog and other
vessels are detected by radar?
(A) You should maneuver in accordance with the steering and sailing rules.
o (B) You should make an ample change to port for a vessel crossing on the starboard bow.
o (C) You should determine the course and speed of all radar contacts at six minute intervals.
o (D) You should make a series of small course alterations when maneuvering in order to
continually assess the situation.
 
417. (1.3.3.12-1) INTERNATIONAL ONLY A wing in ground (WIG) craft cannot comply with the
spacing requirement for masthead lights. What is required in this situation?
o (A) The WIG must carry only the lights that comply with the rules; the others may be omitted.
(B) The WIG's lights must comply as closely as possible, as determined by her government.
o (C) The WIG must be altered to permit full compliance with the rules.
o (D) An all-round light should be substituted for the after masthead light and the stern light.
 
418. (1.3.3.4-1) INTERNATIONAL ONLY While underway at night, a power-driven vessel of less than
7 meters in length, whose maximum speed which does not exceed 7 knots, may show which of the
o (A) Sidelights combined in a single lantern, only
o (B) An all-round flashing yellow light, only
o (C) A lantern showing a white light exhibited in sufficient time to prevent collision, only
(D) One all-round white light, only
 
419. (1.3.3.4-2) INTERNATIONAL ONLY Which is the minimal lighting requirement for a power-driven
vessel less than 7 meters in length, with a maximum speed which does not exceed 7 knots?
o (A) A white light on the near approach of another vessel
(B) One white 360 light
o (C) The lights required of a vessel less than 12 meters in length
o (D) Sidelights and a stern light
following?
 
420. (1.3.3.5-1) INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown in
illustration D041RR below, and will pass 1/4 mile apart. Which light on vessel "B" will you see if you
are on vessel "A"?
o (A) Flashing blue light
o (B) Special flashing yellow light
o (C) Two yellow towing lights
(D) None of the above
 
421. (1.3.3.5-2) INTERNATIONAL ONLY A partially submerged object towed by a vessel, during the
day, must display which of the following shapes?
o (A) a black ball only when the length of the tow exceeds 200 meters in length
o (B) a black ball
o (C) a diamond shape when the length of the tow exceeds 200 meters in length
(D) a diamond shape when the length of the tow is 200 meters or less
 
422. (1.3.3.5-3) INTERNATIONAL ONLY Which of the following does NOT exhibit a yellow light?
o (A) Purse seiners
(B) Towing vessels pushing ahead
o (C) Air cushion vessels in a non-displacement mode
o (D) U.S. submarines
 
423. (1.3.3.5-4) INTERNATIONAL ONLY At night you sight the lights shown in illustration D066RR
below. What do the lights indicate?
o (A) Two vessels pair trawling
o (B) A vessel engaged in fishing
(C) A tug with a tow alongside
o (D) A ship being assisted by a tug
 
424. (1.3.3.5 -5) INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown in
illustration D041RR below and will pass 1/4 mile apart. If you are on vessel "A", in addition to the
sidelight, which other light(s) will you see on vessel "B"?
o (A) Special flashing yellow light
o (B) Two yellow towing lights
(C) Two white masthead lights in a vertical line
o (D) None of the above
 
425. (1.3.3.5-6) INTERNATIONAL ONLY In addition to other required lights, which lights does a
power-driven vessel pushing ahead or towing alongside display?
o (A) Two lights on the stern, one yellow and one white
o (B) Two yellow towing lights in a vertical line
(C) Two white masthead lights in a vertical line
o (D) Two all-round red lights in a vertical line
 
426. (1.3.3.5-7) INTERNATIONAL ONLY At night, you sight the lights shown in illustration D055RR
below. What do the lights indicate?
o (A) A tug not under command
o (B) A vessel fishing at anchor
o (C) A pipeline
(D) A tug with a tow alongside
 
427. (1.3.3.5-8) INTERNATIONAL ONLY You see the lights shown in illustration D066RR below.
What do these lights indicate?
(A) Vessel towing a barge alongside
o (B) Dredge working at anchor
o (C) Vessel pushing a barge ahead
o (D) Pilot vessel with a launch alongside
 
428. (1.3.3.5 -9) INTERNATIONAL ONLY Which light(s) shall a single vessel being towed
alongside show?
o (A) A masthead light, sidelights, and a stern light
o (B) Only the outboard sidelight and a stern light
(C) Sidelights and a stern light
o (D) One all-round white light
 
429. (1.3.3.5-10) INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside
will show sidelights, a stern light, and which additional light(s)?
o (A) A single white light forward
(B) Two masthead lights in a vertical line
o (C) Two yellow masthead lights in a vertical line
o (D) An all-round red light where it can best be seen
 
430. (1.3.3.5-11) INTERNATIONAL ONLY As seen in illustration D016RR below, which additional
shape must you show on the forward end of an inconspicuous partially submerged vessel or object
being towed more than 200 meters in length?
o (A) A
(B) B
o (C) D
o (D) No day shape must be shown.
 
431. (1.3.3.5-12) INTERNATIONAL ONLY Which light(s) will a 20-meter power-driven vessel pushing
ahead or towing alongside display?
o (A) Two all-round red lights where they can best be seen
o (B) A single white light forward
o (C) Two towing lights in a vertical line
(D) Two masthead lights in a vertical line
 
432. (1.3.3.5-13) INTERNATIONAL ONLY Which lights is a 45-meter power-driven vessel pushing
ahead or towing alongside required to display?
o (A) Two all-round red lights at the masthead
o (B) Two towing lights in a vertical line
(C) Two masthead lights in a vertical line
o (D) A towing light above the stern light
 
433. (1.3.3.7-1) INTERNATIONAL ONLY Additional light signals are provided in the Annexes to the
Rules for which of the following vessels?
o (A) Under sail
o (B) Engaged in towing
(C) Engaged in fishing
o (D) Not under command
 
434. (1.3.3.8-1) INTERNATIONAL ONLY If a towing vessel and her tow are severely restricted in their
ability to deviate from their course, the towing vessel shall show lights in addition to her towing
identification lights. When shall these additional lights be shown?
o (A) If the vessel is towed alongside
(B) If the vessel is towed astern
o (C) If the vessel is pushed ahead
o (d) All of the above
 
435. (1.3.3.9-1) INTERNATIONAL ONLY Which vessel would display three red lights in a vertical
line?
o (A) A vessel aground
(B) A vessel constrained by her draft
o (C) A vessel dredging the navigation channel
o (D) A vessel not under command
 
436. (1.3.3.9-2) INTERNATIONAL ONLY What shape is prescribed for a vessel constrained by her
draft?
o (A) Two vertical black balls
o (B) A black cone, apex upward
o (C) A black cone, apex downward
(D) A cylinder
 
437. (1.3.3.9-3) INTERNATIONAL ONLY If a vessel displays three all-round red lights in a vertical line
at night, during the day which shape(s) may she show?
(A) A cylinder
o (B) Two diamonds in a vertical line
o (C) Two cones, apexes together
o (D) Three balls in a vertical line
 
438. (1.3.3.9-4) INTERNATIONAL ONLY Which lights shall a vessel that is constrained by her
draft, display, in a vertical line to indicate her condition?
o (A) Three 360 blue lights
o (b) Two 225 red lights
(C) Three 360 red lights
o (d) Two 225 blue lights
 
439. (1.3.3.9-5) INTERNATIONAL ONLY You have sighted three red lights in a vertical line on
another vessel dead ahead at night. Which vessel would display these lights?
(A) A vessel constrained by her draft
o (B) A vessel aground
o (C) A vessel dredging
o (D) A vessel moored over a wreck
 
440. (1.3.3.9-6) INTERNATIONAL ONLY In addition to her running lights, a vessel constrained by her
draft while underway shall carry which lights in a vertical line?
o (A) Two red lights
o (B) Two white lights
o (C) A red light, a white light, and a red light
(D) Three red lights
 
441. (1.3.3.9 -7) INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical
line?
o (A) A vessel aground
o (B) A trawler fishing in close proximity to other trawlers
o (C) A dredge
(D) A vessel constrained by her draft
 
442. (1.3.3.9-8) INTERNATIONAL ONLY A vessel constrained by her draft may display which lights?
o (A) Three all-round red lights instead of the lights required for a power-driven vessel of her class
o (B) The same lights as a vessel restricted in her ability to maneuver
o (C) The lights for a power-driven vessel which is not under command
(D) Three all-round red lights in addition to the lights required for a power-driven vessel of her
class
 
443. (1.3.4.3-1) INTERNATIONAL ONLY A power-driven vessel leaving a quay or wharf must sound
what signal?
o (A) Three short blasts
o (b) A long blast
o (C) A prolonged blast
(D) No signal is required.
 
444. (1.3.4.3-2) INTERNATIONAL ONLY You are on vessel "A" as shown in illustration D032RR
below. Vessel "B" sounds two short blasts. What action should you take?
o (A) Sound two prolonged blasts followed by two short blasts
o (B) Sound two short blasts and maintain course and speed
(C) Do not answer the whistle signal from vessel "B"
o (D) Sound one prolonged, one short, one prolonged and one short blasts
 
445. (1.3.4.3-3) INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile
of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the
whistle. What action should vessel "B" take?
o (A) Sound one short blast and maintain course and speed
o (B) Sound the danger signal and slow to moderate speed
o (C) Alter course to the right or slowdown
(D) Maintain course and speed
 
446. (1.3.4.3-4) INTERNATIONAL ONLY Which is TRUE when your vessel is moving from a berth
alongside a quay (wharf)?
o (A) You must sound a long blast
o (B) You must sound three short blasts
o (C) You must sound a prolonged blast
(D) No signal is required.
 
447. (1.3.4.3 -5) INTERNATIONAL ONLY Power-driven vessels "A" and "B" are meeting on a river as
shown in illustration D041RR below and will pass 1/4 mile apart. Which action should the vessels
take?
(A) The vessels should continue on course and pass without sounding any whistle signals.
o (B) The vessels should exchange two blast whistle signals and pass starboard to starboard.
o (C) The vessels should exchange one blast whistle signals and pass starboard to starboard.
o (D) The vessel with the tow should initiate the whistle signals.
 
448. (1.3.4.3 -6) INTERNATIONAL ONLY Your vessel is backing out of a slip in a harbor and you can
see that other vessels are approaching. You should sound which of the following signals?
o (A) One prolonged blast followed by three short blasts when the last line is taken aboard
o (B) The danger signal
o (C) One prolonged blast only
(D) Three short blasts when leaving the slip
 
449. (1.3.4.3-7) INTERNATIONAL ONLY Which vessel would sound two prolonged blasts followed by
one short blast on the whistle?
o (A) A vessel engaged in mineclearance
o (B)A vessel at anchor
(C) A vessel overtaking another in a narrow channel
o (D) A vessel engaged in fishing while at anchor
 
450. (1.3.4.3 -8) INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as
shown in illustration D017RR below and will pass without changing course. What signal should
vessel "A" sound?
o (A) Two prolonged blasts followed by two short blasts
o (B) At least five short and rapid blasts
o (C) Two short blasts
(D) No whistle signal should be sounded
 
451. (1.3.4.3 -9) INTERNATIONAL ONLY Two power-driven vessels are meeting in the situation as
shown in illustration D037RR below. What does one short blast from either vessel mean?
o (A) "I intend to hold course and speed."
o (B) "I am altering my course to port."
(C) "I am altering my course to starboard."
o (D) "I intend to leave you on my port side."
 
452. (1.3.4.3-10) INTERNATIONAL ONLY You are in sight of another vessel in a crossing situation,
and the other vessel sounds one short blast. You are going to hold course and speed.
Which statement is CORRECT?
(A) Sound no whistle signal
o (B) Answer with one short blast
o (C) Sound the danger signal
o (D) Answer with two short blasts
 
453. (1.3.4.3-11) INTERNATIONAL ONLY Two power-driven vessels are meeting in the situation as
shown in illustration D037RR below. What does two short blasts from either vessel mean?
o (A) "I am altering my course to starboard."
o (B) "I intend to leave you on my port side."
o (C) "I am operating astern propulsion."
(D) "I am altering my course to port."
 
454. (1.3.4.3-12) INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile
of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the
whistle. What does this signal mean?
o (A) "I intend to intend to overtake you on your port side"
o (B) "I am intend to leave you on my starboard side"
o (C) "I am altering my course to port"
(D) None of the above
 
455. (1.3.4.3-13) INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile
of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the
whistle. What is vessel "B" in this situation?
o (A) The burdened vessel
o (B) The overtaking vessel
o (C) The give-way vessel
(D) None of the above
 
456. (1.3.4.3-14) INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile
of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the
whistle. What signal should vessel "B" sound?
o (A) Two short blasts
o (B) One prolonged, one short, one prolonged and one short blasts
o (C) One short blast
(D) None of the above
 
457. (1.3.4.3-15) INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile
of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the
whistle. What does this signal mean?
o (A) "I intend to overtake you on your starboard side"
o (B) "I am operating astern propulsion"
o (C) "I intend to leave you on my port side"
(D) None of the above
 
458. (1.3.4.3 -16) INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as
shown in illustration D017RR below and will pass without changing course. What action should
Vessel "A" take?
(A) Need not sound any whistle signals
o (B) Should sound one long blast
o (C) Should sound the danger signal
o (D) Should sound two short blasts
 
459. (1.3.4.3-17) INTERNATIONAL ONLY When two vessels are in sight of one another, all of the
following signals may be given EXCEPT which signal?
o (A) A light signal of at least five short and rapid flashes
o (B) Two short whistle blasts
o (C) One prolonged, one short, one prolonged and one short whistle blasts
(D) Four short whistle blasts
 
460. (1.3.4.3-18) INTERNATIONAL ONLY When two vessels are in sight of one another and NOT in
or near an area of restricted visibility, any of the following signals may be given EXCEPT which
signal?
o (A) A light signal of at least five short and rapid flashes
(B) Four short whistle blasts
o (C) Two short whistle blasts
o (D) One prolonged, one short, one prolonged, and one short whistle blasts
 
461. (1.3.4.3-19) INTERNATIONAL ONLY On open water, a power-driven vessel coming up dead
astern of another vessel and altering her course to starboard so as to pass on the starboard side of
the vessel ahead would sound which signal?
o (A) One long and one short blast
o (B) Two prolonged blasts followed by one short blast
o (C) Two short blasts
(D) One short blast
 
462. (1.3.4.3 -20) INTERNATIONAL ONLY In a crossing situation on international waters, what does a
short blast by the give-way vessel indicate?
o (A) The vessel will keep out of the way of the stand-on vessel
o (B) The vessel intends to pass port to port
o (C) The vessel is holding course and speed
(D) The vessel is turning to starboard
 
463. (1.3.4.3-21) INTERNATIONAL ONLY A vessel sounds one short blast. What does this signal
indicate about the vessel?
o (A) The vessel intends to pass starboard to starboard
o (B) The vessel intends to pass port to port
(C) The vessel is altering course to starboard
o (D) The vessel intends to alter course to starboard
 
464. (1.3.4.3-22) INTERNATIONAL ONLY On open water two vessels are in an overtaking situation.
The overtaking vessel has just sounded one short blast on the whistle. What is the meaning of this
whistle signal?
o (A) "I will maintain course and speed and pass you on your starboard side."
o (B) "I request permission to pass you on my port side."
o (C) "On which side should I pass?"
(D) "I am changing course to starboard."
 
465. (1.3.4.3-23) INTERNATIONAL ONLY A signal of one prolonged, one short, one prolonged, and
one short blast, in that order is given by which vessel?
(A) A vessel being overtaken in a narrow channel
o (B)A vessel at anchor
o (C) A vessel in distress
o (D) A vessel engaged on pilotage duty underway
 
466. (1.3.4.3-24) INTERNATIONAL ONLY A whistle signal of one prolonged, one short, one
prolonged and one short blast, is sounded by which vessel?
(A) A vessel being overtaken in a narrow channel
o (B) A vessel towing a submerged object
o (C) A vessel at anchor warning of her position
o (D) A vessel in distress
 
467. (1.3.4.3-25) INTERNATIONAL ONLY What characteristic must a light used to indicate passing
intentions poses?
o (A) It must be an all-round red light
o (B) It can be either an all-round white or yellow light
(C) It must be an all-round white light
o (D) It must be an all-round yellow light
 
468. (1.3.4.3 -26) INTERNATIONAL ONLY What whistle signal, if any, would be sounded when two
vessels are meeting, but will pass clear starboard to starboard?
o (A) One short blast
o (B) Two short blasts
o (C) Five or more short blasts
(D) No signal is required.
 
469. (1.3.4.3-27) INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters and will
pass without changing course. Which action should vessel "A" take?
o (A) Sound one long blast
o (B) Sound two short blasts
o (C) Sound the danger signal
(D) Not sound any whistle signals
 
470. (1.3.4.3 -28) INTERNATIONAL ONLY A signal of intent must be sounded in international waters
during which of the following situations?
o (A) A vessel meeting another head-on
o (B) The give-way vessel in a crossing situation
o (C) A vessel crossing the course of another
(D) A vessel overtaking another in a narrow channel
 
471. (1.3.4.3 -29) INTERNATIONAL ONLY Which signal is required to be sounded by a power-driven
vessel ONLY?
o (A) A signal sounded when approaching a bend.
o (B) A signal meaning that the vessel sounding it is in doubt as to the other vessel's actions.
o (C) A signal meaning, "I intend to overtake you on your starboard side."
(D) A signal meaning, "I am altering my course to starboard."
 
472. (1.3.4.3 -30) INTERNATIONAL ONLY You are on a power-driven vessel, maneuvering as
authorized, and are in sight of another vessel. You put your engines full speed astern, which
statement concerning whistle signals is TRUE?
o (A) You must sound whistle signals only if the vessels are meeting.
(B) You must sound three short blasts on the whistle.
o (C) You need not sound any whistle signals.
o (D) You must sound one blast if backing to starboard.
 
473. (1.3.4.3-31) INTERNATIONAL ONLY Which signal is sounded ONLY by a vessel in sight of
another and NOT in or near an area of restricted visibility?
(A) One short blast on the whistle
o (B) One short, one prolonged, and one short blast on the whistle
o (C) One prolonged blast on the whistle
o (D) Four short blasts on the whistle
 
474. (1.3.4.3 -32) INTERNATIONAL ONLY Which whistle signal may be sounded by one of two
vessels in sight of each other?
o (A) One short, one prolonged, and one short blast
o (B) One prolonged blast
o (C) Four short blasts
(D) One short blast
 
475. (1.3.4.3-33) INTERNATIONAL ONLY Which signal is sounded ONLY by a vessel in sight of
another?
(A) One short blast on the whistle
o (B) One prolonged blast on the whistle
o (C) One short, one prolonged, and one short blast on the whistle
o (D) Four short blasts on the whistle
 
476. (1.3.4.3-34) INTERNATIONAL ONLY Which is TRUE for a light used to signal passing
intentions?
o (A) The light must be an alternating red and yellow light
o (B) The light must be an all-round white or yellow light
o (C) The light must be an alternating white and yellow light
(D) The light must be an all-round white light only
 
477. (1.3.4.3-35) INTERNATIONAL ONLY Which is TRUE for the light which may be used with a
vessel's whistle?
o (A) It is used when the whistle is broken
o (B) It is used only at night
o (C) It is used prior to sounding the whistle
(D) It is a white light
 
478. (1.3.4.3-39) INTERNATIONAL ONLY A vessel sounds two short blasts. What does this indicate?
o (A) The vessel intends to alter course to port
o (B) The vessel will alter course to port
(C) The vessel is altering course to port
o (D) The vessel intends to pass starboard to starboard
 
479. (1.3.4.3 -40) INTERNATIONAL ONLY Two power-driven vessels are meeting. What would a two
blast whistle signal by either vessel mean?
(A) "I am altering course to port"
o (B) "I desire to pass port to port"
o (C) "I desire to pass starboard to starboard"
o (D) "I intend to alter course to port"
 
480. (1.3.4.3 -41) INTERNATIONAL ONLY You are in sight of a power-driven vessel that sounds two
short blasts of the whistle. What does this signal mean?
o (A) The vessel intends to leave you on her starboard side
(B) The vessel is altering course to port
o (C) The vessel is altering course to starboard
o (D) The vessel intends to leave you on her port side
 
481. (1.3.4.4-1) INTERNATIONAL ONLY Your vessel is backing out of a slip in a harbor. Visibility is
restricted. Which signal are you required to sound?
o (A) one prolonged blast followed by three short blasts when the last line is taken aboard
o (B) one prolonged blast followed by three short blasts when leaving the slip
o (C) the danger signal
(D) one prolonged blast only
 
482. (1.3.4.4-3) INTERNATIONAL ONLY You are underway on the high seas in restricted visibility.
You hear a fog signal of one prolonged and two short blasts. Which vessel would Not sound this
signal?
o (A) A vessel constrained by her draft
o (B) A vessel minesweeping
(C) A vessel being towed
o (D) A vessel engaged in fishing
 
483. (1.3.4.4-5) INTERNATIONAL ONLY Which vessel would sound a fog signal of one prolonged
and two short blasts?
o (A) A WIG craft underway
(B) A vessel constrained by her draft
o (C) A vessel being towed
o (D) A power-driven vessel underway
 
484. (1.3.4.4 -4) INTERNATIONAL ONLY Which vessel sounds the same fog signal as a vessel not
under command?
o (A) A towed vessel
(B) A sail vessel
o (c) A WIG craft underway
o (D) A vessel aground
 
485. (1.3.4.4 -2) INTERNATIONAL ONLY Which signal may be sounded ONLY by vessels in restricted
visibility?
o (A) At least five short and rapid blasts
o (B) One prolonged, one short, one prolonged, and one short blast, in that order
o (C) Two short blasts
(D) Four short blasts
 
486. (1.2.3.2-19) BOTH INTERNATIONAL & INLAND The towing light is a(n).
o (A) flashing amber light
o (B) yellow light with the same characteristics as the masthead light
(C) yellow light with the same characteristics as the stern light
o (D) all-round yellow light
 
487. (1.2.3.4 -15) BOTH INTERNATIONAL & INLAND You are on a vessel heading due south and see
the lights shown in illustration D051RR below, one point on the port bow. What direction could this
vessel be heading?
(A) NW
o (B) SE
o (C) SW
o (D) NE
 
488. (1.2.4.6-6) BOTH INTERNATIONAL & INLAND Which signal is NOT a distress signal?
o (A) International Code Flags "November" over "Charlie"
(B) A Basket hanging in the rigging
o (C) Shooting red flares or red rockets
o (D) Continuous sounding of fog signaling apparatus
 
489. (1.2.1.3-23) BOTH INTERNATIONAL & INLAND A vessel that is defined as "restricted in her
ability to maneuver" is unable to keep out of the way of another vessel due to.
o (A) some exceptional circumstances
(B) the nature of her work
o (C) a danger of navigation
o (d) her draft
 
490. (1.2.3.6-33) BOTH INTERNATIONAL & INLAND You are under sail with the auxiliary engine
running and the propeller engaged on a 15 meter sail vessel. Which statement is TRUE?
o (A) You must display two green lights in a vertical line at or near the masthead.
o (B) You should maintain course and speed when approaching a power-driven vessel.
o (C) You are considered a sailing vessel as long as sail propulsion affects the vessel's
maneuverability.
(D) This condition is indicated by a conical shape, apex downwards.
 
491. (1.2.3.7A-4) BOTH INTERNATIONAL & INLAND A vessel underway but not making way and
fishing other than trawling will show which lights?
(A) A red light over a white light
o (B) A white light over a red light, sidelights, and a stern light
o (C) A white light over a red light
o (D) A red light over a white light, sidelights, and a stern light
 
492. (1.2.3.5-77) BOTH INTERNATIONAL & INLAND A vessel towing is showing three forward white
masthead lights in a vertical line. What does this indicate?
o (A) the towing vessel is greater than 50 meters
(B) the tow is greater than 200 meters
o (C) the towing vessel is less than 50 meters
o (D) the tow is less than 200 meters
 
493. (1.2.4.4-7) BOTH INTERNATIONAL & INLAND While underway in fog you hear the rapid ringing
of a bell. What does this signal indicate?
o (A) A vessel drifting
o (B) A vessel backing down
o (C) A sailboat underway
(D) A vessel at anchor
 
494. (1.2.3.5-13) BOTH INTERNATIONAL & INLAND The tow shown in illustration D024RR below is
greater than 200 meters in length and severely restricts the tow vessel's ability to deviate from her
course. Which shape(s) would be displayed by day from the vessel(s)?
o (A) ball-diamond-ball on the towing vessel
o (B) diamond on the towing vessel
o (C) diamond on the barges
(D) All of the above
 
495. (1.2.3.7B-5) BOTH INTERNATIONAL & INLAND Which is TRUE for a fishing vessel displaying
the lights shown in illustration D067RR below?
o (A) the vessel is anchored
(B) the vessel is fishing by trawling
o (C) it is tending a small fishing boat
o (D) it is underway but not fishing
 
496. (1.2.3.7B-2) BOTH INTERNATIONAL & INLAND You are on a 30-meter trawler. Which
identification shape shown in illustration D016RR below must you show while trawling?
o (A) A
o (B) B
(C) C
o (D) None of these day signals are correct.
 
497. (1.2.3.6-9) BOTH INTERNATIONAL & INLAND What light(s) must sailboats 20 meters in length
show when underway at night?
o (A) Red and green sidelights
o (b) A stern light
o (C) One all-round white light
(D) Red and green sidelights and a stern light
 
498. (1.2.4.4-74) BOTH INTERNATIONAL & INLAND Your vessel enters fog. You stop your engines,
and the vessel is dead in the water. Which fog signal should you sound?
o (A) Three short blasts every two minutes
o (B) One prolonged and two short blasts every two minutes
o (C) One prolonged blast every two minutes
(D) Two prolonged blasts every two minutes
 
499. (1.2.4.1-2) BOTH INTERNATIONAL & INLAND What is the duration of each blast of the whistle
signals used in meeting and crossing situations?
(A) about 1 second
o (B) 2 or 4 seconds
o (C) 4 to 6 seconds
o (D) 8 to 10 seconds
 
500. (1.2.3.4-13) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below. Which color light will vessel "A" observe on vessel "B"?
o (A) Flashing red
o (B) Green
o (C) Yellow over yellow
(D) White
 
501. (1.2.4.4-47) BOTH INTERNATIONAL & INLAND Which vessel is required to sound a fog signal
of one prolonged followed by two short blasts?
o (A) A sailing vessel, underway
o (B) A vessel not under command
o (C) A vessel restricted in its ability to maneuver, at anchor
(D) All of the above
 
502. (1.2.4.2-12) BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a
vessel 13 meters in length?
o (A) Whistle and bell only
o (b) Bell only
o (C) Whistle, bell, and gong
(D) Whistle only
 
503. (1.2.3.11B-12) BOTH INTERNATIONAL & INLAND What is the minimum length of an anchored
vessel which is required to show a white light both forward and aft?
o (A) 200 meters
o (b) 150 meters
o (c) 100 meters
(D) 50 meters
 
504. (1.2.4.4 -94) BOTH INTERNATIONAL & INLAND In restricted visibility, which signal shall a vessel
fishing with nets sound at intervals of two minutes?
o (A) Two prolonged blasts in succession
(B) One prolonged followed by two short blasts
o (C) One prolonged blast
o (D) One prolonged followed by three short blasts
 
505. (1.2.3.11A-2) BOTH INTERNATIONAL & INLAND A vessel aground would show the same
shape to signify her condition as which vessel?
o (A) vessel towing a submerged object
o (B) hydrographic survey vessel at anchor and surveying
o (C) dredge underway and dredging
(D) None of the above
 
506. (1.2.3.7A-19) BOTH INTERNATIONAL & INLAND When is a vessel which is fishing, required to
show sidelights and a stern light?
(A) when underway and making way
o (B) when at anchor
o (C) if underway
o (D) when dead in the water
 
507. (1.2.3.5-79) BOTH INTERNATIONAL & INLAND A towing vessel 35 meters in length, with a tow
100 meters astern, must show a minimum of how many masthead lights?
o (A) 1
(B) 2
o (C) 3
o (D) 4
 
508. (1.2.3.3-1) BOTH INTERNATIONAL & INLAND You are heading due east (090) and observe a
vessel's red sidelight on your port beam. Which direction may the vessel be heading?
o (A) southeast (135)
o (b) northeast (045)
(C) southwest (225)
o (d) northwest (315)
 
509. (1.2.3.5-14) BOTH INTERNATIONAL & INLAND A vessel displaying the shape shown in
illustration D010RR below is which of the following?
(A) has a tow that exceeds 200 meters in length
o (B) is not under command
o (C) is at anchor
o (D) has a tow that is carrying dangerous cargo
 
510. (1.2.3.6-21) BOTH INTERNATIONAL & INLAND Which light(s) are required to be exhibited by a
20-meter sailing vessel while underway?
o (A) combined lantern
(B) stern light
o (C) red light over a green light at the masthead
o (d) All of the above
 
511. (1.2.3.10-2) BOTH INTERNATIONAL & INLAND A vessel is displaying ONLY the lights shown
in illustration D053RR below. What type of vessel is this?
o (A) vessel under sail
o (B) vessel engaged in fishing
(C) vessel engaged on pilotage duty underway
o (D) power-driven vessel underway, making way
 
512. (1.2.3.8B-20) BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, would
NOT be required to show anchor lights?
o (A) A power-driven vessel
o (B) A vessel on pilotage duty
(C) A vessel dredging
o (D) A vessel restricted in her ability to maneuver
 
513. (1.2.3.6-32) BOTH INTERNATIONAL & INLAND Which light configuration may a sailing vessel
exhibit while underway?
o (A) a special flashing light at the bow
o (B) a green light over a red light at the masthead
(C) a red light over a green light at the masthead
o (D) two white lights in a vertical line at the stern
 
514. (1.2.1.1-1) BOTH INTERNATIONAL & INLAND For identification purposes at night, U.S. Navy
submarines on the surface may display an intermittent flashing light of which color?
o (A) Red
o (b) Blue
o (C) White
(D) Amber (yellow)
 
515. (1.2.3.4-25) BOTH INTERNATIONAL & INLAND At night, power-driven vessels less than 12
meters in length may, instead of the underway lights for vessels under 50 meters, show which
lights?
o (A) Sidelights and stern light
o (B) Stern light only
(C) One all-round white light and sidelights
o (d) Masthead light only
 
516. (1.2.3.8A-8) BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at
night must show which lights in a vertical line?
o (A) Three white
o (B) Two white
o (C) Three red
(D) Two red
 
517. (1.2.3.8B-40) BOTH INTERNATIONAL & INLAND The tow shown in illustration D024RR below is
less than 200 meters in length and severely restricted in her ability to deviate from her course. Which
shape(s) would be displayed by day from the vessel(s)?
o (A) diamond on the last barge
o (B) diamond on the towing vessel
(C) ball-diamond-ball on the towing vessel
o (d) All of the above
 
518. (1.2.3.7A-3) BOTH INTERNATIONAL & INLAND You are on a vessel engaged in fishing, other
than trawling, and have gear extending more than 150 meters horizontally from the vessel. Which of
the shapes shown in illustration D016RR below must you show in the direction of the outlying gear?
o (A) A
o (B) B
o (C) C
(D) D
 
519. (1.2.3.8B-7) BOTH INTERNATIONAL & INLAND Which lights are shown by a vessel restricted in
her ability to maneuver to indicate that the vessel is making way?
o (A) Masthead lights and sidelights only
(B) Masthead lights, sidelights and stern light
o (C) Sidelights only
o (D) Sidelights and stern light only
 
520. (1.2.3.2-3) BOTH INTERNATIONAL & INLAND A vessel is towing and carrying the required
lights on the masthead. What is the visibility arc of these lights?
o (A) 112.5
o (B) 135.0
(C) 225.0
o (D) 360.0
 
521. (1.2.4.3 -21) BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing
situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, which
action should you take?
o (A) Give no signal and maneuver at will
(B) Sound the danger signal
o (C) Sound two short blasts, alter to port, and pass astern
o (D) Sound one short blast and maintain course
 
522. (1.2.3.8B-32) BOTH INTERNATIONAL & INLAND If a towing vessel and her tow are severely
restricted in their ability to deviate from their course, they may show lights in addition to their towing
identification lights. These additional lights may be shown if the tow is.
o (A) pushed ahead
o (B) towed alongside
(C) towed astern
o (d) All of the above
 
523. (1.2.3.2-16) BOTH INTERNATIONAL & INLAND The stern light shall be positioned such that it
will show from dead astern to how many degrees on each side of the stern of the vessel?
o (A) 22.5
(B) 67.5
o (C) 112.5
o (D) 135.0
 
524. (1.2.3.5-37) BOTH INTERNATIONAL & INLAND What lights, if any, would you exhibit at night if
your vessel were broken down and being towed by another vessel?
o (A) None
o (B) Same lights as for a power-driven vessel underway
o (C) A white light forward and a white light aft
(D) The colored sidelights and a white stern light
 
525. (1.2.4.3-32) BOTH INTERNATIONAL & INLAND In a meeting situation, which vessel may sound
the danger signal?
(A) Either vessel
o (B) Neither vessel
o (C) Stand-on vessel
o (D) Give-way vessel
 
526. (1.2.3.8B-23) BOTH INTERNATIONAL & INLAND An anchored vessel is servicing an aid to
navigation and is restricted in her ability to maneuver. Which lights will she show?
o (A) Three lights in a vertical line, the highest and lowest red and the middle white, ONLY
(B) Three lights in a vertical line, the highest and lowest red and the middle white, and anchor
lights
o (C) Anchor lights and sidelights ONLY
o (d) Anchor lights ONLY
 
527. (1.2.3.2-1) BOTH INTERNATIONAL & INLAND In illustration D023RR below which represents
the arc of visibility of a red sidelight?
(A) A
o (B) B
o (C) C
o (D) D
 
528. (1.2.1.3-26) BOTH INTERNATIONAL & INLAND The NAVIGATION RULES define a "vessel not
under command" as a vessel which.
o (A) is moored, aground or anchored in a fairway
(B) through some exceptional circumstance is unable to maneuver as required by the rules
o (C) by taking action contrary to the rules has created a special circumstance situation
o (D) from the nature of her work is unable to keep out of the way of another vessel
 
529. (1.2.1.3-37) BOTH INTERNATIONAL & INLAND Which vessel is NOT to be regarded as
"restricted in her ability to maneuver"?
o (A) A vessel servicing a navigation mark
o (B) A vessel transferring provisions while underway
(C) A pushing vessel and a vessel being pushed when connected in a composite unit
o (D) A vessel launching aircraft
 
530. (1.2.3.5 -70) BOTH INTERNATIONAL & INLAND A power-driven vessel towing another vessel
astern (tow less than 200 meters) shall show which light(s)?
o (A) three masthead lights in a vertical line instead of either the forward or after masthead lights
(B) two masthead lights in a vertical line instead of either the forward or after masthead lights
o (C) a small white light abaft the funnel
o (D) two towing lights in a vertical line at the stern
 
531. (1.2.3.8B-27) BOTH INTERNATIONAL & INLAND Which shapes shall a vessel transferring
provisions or cargo at sea display during the day?
o (A) three black balls in a vertical line
o (B) two black balls in a vertical line
(C) three black shapes in a vertical line; the highest and lowest shall be balls and the middle one
a diamond
o (D) three shapes in a vertical line; the highest and lowest shall be red balls and the middle a white
diamond
 
532. (1.2.3.8B-31) BOTH INTERNATIONAL & INLAND By night, you sight the lights of a vessel
engaged in underwater operations. If an obstruction exists on the port side of the vessel, how will it
be marked?
(A) two red lights in a vertical line
o (B) a single red light
o (c) a floodlight
o (D) any visible lights
 
533. (1.2.3.11B-13) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a
vessel of 150 meters in length, at anchor?
(A) She must show all-round white lights forward and aft.
o (B) She may show an all-round white light where it can best be seen.
o (C) The showing of working lights is optional.
o (D) None of the above
 
534. (1.2.4.2-1) BOTH INTERNATIONAL & INLAND Which statement is TRUE regarding equipment
for bell and gong signals?
o (A) Any vessel over 12 meters in length must be provided with a gong.
(B) Manual sounding of the signals must always be possible.
o (C) Signals must be able to be sounded manually and automatically.
o (D) A vessel of less than 12 meters in length need not have any sound signaling equipment.
 
535. (1.2.4.3-28) BOTH INTERNATIONAL & INLAND Which vessel may use the danger signal?
o (A) Either of two power-driven vessels meeting head-on
o (B) The vessel to starboard when two power-driven vessels are crossing
o (C) A vessel engaged in fishing, crossing the course of a sailing vessel
(D) All of the above
 
536. (1.2.3.5-30) BOTH INTERNATIONAL & INLAND Which vessel would display the lights shown in
illustration D079RR below?
o (A) law enforcement vessel
o (B) vessel constrained by her draft
(C) vessel towing astern
o (D) vessel not under command
 
537. (1.2.3.8A-3) BOTH INTERNATIONAL & INLAND Which vessel is required to exhibit the lights
shown in illustration D049RR below?
(A) not under command
o (B) engaged in fishing
o (C) restricted in her ability to maneuver
o (D) on pilotage duty
 
538. (1.2.3.6-16) BOTH INTERNATIONAL & INLAND Which light(s) must a sailing vessel of over 20
meters in length while underway exhibit?
(A) stern light
o (B) white masthead light
o (C) red light over a green light at the masthead
o (D) combined lantern
 
539. (1.2.1.1-6) BOTH INTERNATIONAL & INLAND The masthead light may be displaced from the
centerline on which of the following vessels?
(A) a vessel of special construction
o (B) a vessel engaged in trolling
o (C) a power-driven vessel 12 meters in length
o (D) an air-cushion vessel in non-displacement mode
 
540. (1.2.4.4 -38) BOTH INTERNATIONAL & INLAND You are at anchor in fog on a 120 meter power-
driven vessel. You hear the fog signal of a vessel approaching off your port bow. Which signal may
you sound to warn of your position?
(A) One short, one prolonged, and one short blast
o (B) One prolonged, one short and one prolonged blast
o (C) Two short blasts
o (D) One prolonged blast
 
541. (1.2.4.3-16) BOTH INTERNATIONAL & INLAND Which signal may be used by a vessel that is in
doubt as to whether sufficient action is being taken by another vessel to avoid collision?
(A) Five or more short rapid blasts on the whistle
o (B) Firing a gun every minute
o (C) One prolonged blast on the whistle
o (D) A continuous sounding of the fog horn
 
542. (1.2.1.3-4) BOTH INTERNATIONAL & INLAND Which craft is a "power-driven vessel" under the
Rules of the Road?
o (A) A canoe propelled by a small outboard motor
o (B) An auxiliary sailing vessel, using her engine
o (C) A trawler on her way to the fishing grounds
(D) All of the above
 
543. (1.2.3.8B-5) BOTH INTERNATIONAL & INLAND A vessel is carrying three lights in a vertical
line. The highest and lowest of these are red and the middle light is white. Which statement is
always TRUE?
(A) If making way, she would show masthead lights at night.
o (B) During the day, she would display three balls in a vertical line.
o (C) If at anchor, she need not show anchor lights while displaying identifying lights.
o (D) Her fog signal would consist of a rapid ringing of a bell for five seconds every minute.
 
544. (1.2.3.7A-16) BOTH INTERNATIONAL & INLAND Which light(s) is a vessel engaged in fishing,
and at anchor required to exhibit?
o (A) sidelights and stern light
o (B) three lights in a vertical line, the highest and lowest being red, and the middle being white
o (C) an anchor light
(D) None of the above
 
545. (1.2.3.5-42) BOTH INTERNATIONAL & INLAND Which lights must a vessel being towed show at
night?
o (A) a white all-round light, only
o (B) a flashing yellow light, only
(C) sidelights and a stern light
o (D) forward and after masthead lights
 
546. (1.2.4.4-46) BOTH INTERNATIONAL & INLAND You are underway in fog when you hear the
following signal: one short blast, one prolonged blast and one short blast in succession. Which of the
following would it be?
o (A) A power-driven vessel underway and making way through the water
o (B) A sailing vessel underway with the wind abaft the beam
o (C) A vessel towing
(D) A vessel at anchor
 
547. (1.2.4.4-64) BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged
blast from another vessel. Which vessel would sound this signal?
o (A) A vessel being towed
o (B) A sailboat making way
(C) A power-driven vessel making way
o (D) Any power-driven vessel making way, towing
 
548. (1.2.1.3-42) BOTH INTERNATIONAL & INLAND A vessel transferring cargo while underway is
classified by the Rules as a vessel.
o (A) not under command
o (B) constrained by her draft
o (C) in special circumstances
(D) restricted in her ability to maneuver
 
549. (1.2.1.3-20) BOTH INTERNATIONAL & INLAND Which vessel is "underway" within the meaning
of the Rules?
o (A) A vessel aground with the engine turning
(B) A vessel drifting with the engine stopped
o (C) A vessel tied to an offshore mooring buoy
o (D) A vessel at anchor with the engine turning
 
550. (1.2.4.4-40) BOTH INTERNATIONAL & INLAND While underway in fog, you hear a signal of one
prolonged blast followed by three short blasts. Which vessel shall sound this fog signal?
o (A)A vessel at anchor
o (B) An unmanned vessel being towed
(C) A manned vessel being towed
o (D) A towing vessel
 
551. (1.2.4.3-37) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light
used with whistle signals?
o (A) The light shall have the same characteristics as a masthead light.
o (B) Use of such a light is required.
(C) Its purpose is to supplement short blasts of the whistle.
o (d) All of the above
 
552. (1.2.4.4-119) BOTH INTERNATIONAL & INLAND What is the minimum fog signal required
aboard a vessel between 12 meters and 20 meters in length at anchor?
o (A) One short, one long, one short stroke of the bell every minute
(B) Any efficient sound signal every two minutes
o (C) Rapid ringing of the bell for 10 seconds every minute
o (D) Three separate and distinct strokes of the bell every two minutes
 
553. (1.2.3.4-10) BOTH INTERNATIONAL & INLAND You are on a vessel heading due south and see
the lights shown in illustration D051RR below one point on the port bow. What direction could this
vessel be heading in?
(A) NW
o (B) NE
o (C) SE
o (D) SW
 
554. (1.2.3.6-4) BOTH INTERNATIONAL & INLAND Which vessel may use a lantern combining the
sidelights and stern light?
o (A) sailing vessel of 25 meters in length
(B) 6-meter vessel under oars
o (C) 25-meter power-driven vessel engaged in trolling
o (D) 20-meter vessel engaged in fishing and making way
 
555. (1.2.3.6-24) BOTH INTERNATIONAL & INLAND What shape shall a vessel 15 meters in length,
proceeding under sail as well as being propelled by machinery, exhibit?
o (A) two cones with their apexes together
o (B) one black ball
(C) a cone with its apex downward
o (D) a basket
 
556. (1.2.3.10-7) BOTH INTERNATIONAL & INLAND When shall a pilot vessel on pilotage duty shall
show identity lights?
o (A) while alongside a vessel
o (B) at any time while underway
o (C) while at anchor
(D) All of the above
 
557. (1.2.3.6-23) BOTH INTERNATIONAL & INLAND Which vessel may combine her sidelights and
stern light in one lantern on the fore and aft centerline of the vessel?
o (A) A 28-meter sailing vessel
(B) A 16-meter sailing vessel
o (C) Any non-self-propelled vessel
o (D) A 25-meter power-driven vessel
 
558. (1.2.4.3-23) BOTH INTERNATIONAL & INLAND Which is the danger signal?
o (A) A continuous sounding of the fog signal
o (B) Firing a gun every minute
(C) Five or more short rapid blasts on the whistle
o (D) One prolonged blast on the whistle
 
559. (1.2.1.3 -44) BOTH INTERNATIONAL & INLAND Which vessel is to be regarded as a vessel
"restricted in her ability to maneuver"?
o (A) A vessel which has lost the use of her steering gear
(B) A vessel engaged in mineclearing
o (C) A vessel with a draft of such depth that she cannot change her course
o (D) A vessel fishing with trawls
 
560. (1.2.3.5-83) BOTH INTERNATIONAL & INLAND Which vessel is indicated by the day signal
shown in illustration D022RR?
o (A) A dredge indicating the side with the obstruction
(B) A tug with a tow exceeding 200 meters which limits her ability to maneuver
o (C) A fishing vessel with gear extending more than 150 meters horizontally
o (D) A vessel engaged in underwater operations with a diver down
 
561. (1.2.1.1-3) BOTH INTERNATIONAL & INLAND Which is a light signal authorized by the
Secretary of the Navy as an additional navigational light for a ship of war?
(A) Intermittent flashing amber (yellow) beacon for submarines
o (B) Green masthead and yardarm lights indicating mineclearance operations
o (C) Red-white-red lights in a vertical line for a carrier, launching aircraft
o (D) Yellow flares indicating torpedo firing exercises
 
562. (1.2.3.5-82) BOTH INTERNATIONAL & INLAND Your tug is underway at night and NOT towing.
What light(s) should your vessel show aft to other vessels coming up from astern?
(A) One white light
o (B) Two white lights
o (C) One white light and two yellow lights
o (D) One white light and one yellow light
 
563. (1.2.3.11A-6) BOTH INTERNATIONAL & INLAND A vessel aground at night is required to show
two red lights in a vertical line in addition to which lights?
o (A) sidelights and a stern light
(B) anchor lights
o (C) not under command lights
o (D) restricted in her ability to maneuver lights
 
564. (1.2.1.1-4) BOTH INTERNATIONAL & INLAND Which light may be displayed to assist in the
identification of submarines operating on the surface?
(A) intermittent flashing amber/yellow light
o (B) flashing white light
o (C) flashing sidelight
o (D) blue rotating light
 
565. (1.2.4.2-13) BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a
vessel 15 meters in length?
o (A) Bell only
(B) Whistle only
o (C) Whistle, bell, and gong
o (d) Whistle and bell only
 
566. (1.2.3.5-22) BOTH INTERNATIONAL & INLAND Which vessels do the lighting requirements in
inland waters differ from those for international waters?
o (A) vessels not under command
o (B) barges being towed astern
(C) vessels pushing ahead
o (d) All of the above
 
567. (1.2.1.1-5) BOTH INTERNATIONAL & INLAND What is a light signal authorized by the Secretary
of the Navy as an additional navigational light for a ship of war?
o (A) Green masthead and yardarm lights for a vessel engaged in mineclearing operations
o (B) Yellow flares indicating torpedo firing exercises
(C) Intermittent flashing amber beacon for submarines
o (D) Two yellow lights in a vertical line for a carrier launching aircraft
 
568. (1.2.3.8B1-1) BOTH INTERNATIONAL & INLAND The lights shown in illustration D068RR mean
that another vessel should NOT pass within what distance?
(A) 1000 meters
o (b) 1250 meters
o (c) 1500 meters
o (d) 2000 meters
 
569. (1.2.4.4-6) BOTH INTERNATIONAL & INLAND When should the fog signal of a manned vessel
under tow be sounded?
(A) After the towing vessel's fog signal
o (B) Before the towing vessel's fog signal
o (C) If the towing vessel is sounding a fog signal, the manned vessel being towed is not required
to sound any fog signal.
o (D) Approximately one minute before the towing vessel's fog signal
 
570. (1.2.4.4-16) BOTH INTERNATIONAL & INLAND You are underway in fog when you hear a
signal of three strokes of a bell, a rapid ringing of the bell, and three more strokes of the bell. Which
vessel is required to sound this signal?
o (A) At anchor, greater than 100 meters
o (B) Not under command at anchor
(C) Aground
o (D) At anchor, giving warning
 
571. (1.2.4.4-22) BOTH INTERNATIONAL & INLAND You are operating in restricted visibility and
hear a signal of a rapidly ringing bell followed by the rapid sounding of a gong. Which vessel is
required to sound this signal?
o (A) vessel in distress
o (B) 30-meter sail vessel at anchor
(C) 300-meter power-driven vessel at anchor
o (D) 150-meter power-driven vessel aground
 
572. (1.2.3.2-9) BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right
ahead to what degree?
o (A) 135 abaft the beam
o (B) abeam
o (c) 22.5 forward of the beam
(D) 22.5 abaft the beam
 
573. (1.2.3.11B-8) BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night,
which light(s) must you show?
(A) one all-round white light
o (B) one all-round white light and the stern light
o (C) one all-round white light and a flare up light
o (D) two all-round white lights
 
574. (1.2.3.8B-2) BOTH INTERNATIONAL & INLAND During the day, a vessel picking up a
submarine cable shall exhibit which shapes?
o (A) three shapes, the highest and lowest shall be red balls, and the middle shall be a white
diamond
o (B) three shapes; the highest and lowest shall be black balls, and the middle shall be a red
diamond
o (C) two black balls
(D) three shapes; the highest and lowest shall be black balls and the middle shall be a black
diamond
 
575. (1.2.3.5-54) BOTH INTERNATIONAL & INLAND Which shape should a vessel being towed
exhibit if the tow EXCEEDS 200 meters?
o (A) A ball
(B) A diamond
o (C) A cone, apex upward
o (D) A cone, apex downward
 
576. (1.2.1.2-1) BOTH INTERNATIONAL & INLAND What would be a "special circumstance" under
the Rules?
o (A) Speed in fog
(B) More than two vessels crossing
o (C) Two vessels meeting
o (D) Vessel at anchor
 
577. (1.2.1.2-2) BOTH INTERNATIONAL & INLAND In complying with the Rules, of what must the
mariner take due regard?
o (A) Limited backing power of his vessel
o (B) Radar information about nearby vessels
o (C) The occupation of the other vessel, if known
(D) All of the above
 
578. (1.2.3.7B-7) BOTH INTERNATIONAL & INLAND At night, the lights shown in illustration D076RR
would indicate a vessel engaged in which of the operations?
o (A) laying submarine cable
(B) trawling
o (C) towing astern
o (D) dredging
 
579. (1.2.4.4-27) BOTH INTERNATIONAL & INLAND In reduced visibility, you hear two prolonged
blasts of a whistle. This signal is sounded by which vessel?
o (A) A vessel not under command and making way
(B) A power-driven vessel dead in the water
o (C) A vessel fishing with nets while at anchor
o (D) A sailing vessel on the port tack
 
580. (1.2.4.3-33) BOTH INTERNATIONAL & INLAND Which is TRUE of the signal consisting of five
or more short blasts on the ship's whistle?
(A) It indicates doubt as to the other vessel's action
o (B) It makes the other vessel the give-way vessel
o (C) It replaces directional signals
o (D) It makes it necessary to slow or stop
 
581. (1.2.3.8B-11) BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after
white masthead lights when making way?
(A) A 75-meter vessel restricted in her ability to maneuver
o (B) A 45-meter vessel engaged in towing
o (C) A 100-meter sailing vessel
o (D) A 150-meter vessel engaged in fishing
 
582. (1.2.1.2-3) BOTH INTERNATIONAL & INLAND According to the Navigation Rules, you may
depart from the Rules when.
o (A) out of sight of land
o (B) no vessels are visible on radar
(C) you are in immediate danger
o (D) no vessels are in sight visually
 
583. (1.2.4.4-101) BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and
restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are
carrying out your work at anchor?
o (A) Four short blasts on the whistle at intervals of not more than two minutes
o (B) Five seconds ringing of a bell at intervals of not more than one minute
o (C) Five seconds ringing of a bell and five second sounding of a gong at intervals of not more
than one minute
(D) One prolonged blast followed by two short blasts on the whistle at intervals of not more than
two minutes
 
584. (1.2.3.1-2) BOTH INTERNATIONAL & INLAND When must a vessel display identification
shapes?
o (A) only between 8 AM and 4 PM
o (B) during daylight hours in unrestricted visibility only
(C) during daylight hours in any visibility
o (D) between sunset and sunrise
 
585. (1.2.3.5-44) BOTH INTERNATIONAL & INLAND Which light(s) shall a vessel or object being
towed astern display?
o (A) after masthead light
(B) stern light
o (C) forward masthead light
o (d) All of the above
 
586. (1.2.3.8B-22) BOTH INTERNATIONAL & INLAND Which vessel when anchored at night, would
NOT be required to show anchor lights?
(A) A vessel engaged in underwater operations
o (B) A vessel engaged in mine clearance
o (C) A vessel engaged on pilotage duty
o (D) A vessel engaged in survey operations
 
587. (1.2.3.5-11) BOTH INTERNATIONAL & INLAND Which of the shapes shown in illustration
D016RR below would be used to indicate a vessel with a tow exceeding 200 meters in length?
o (A) A
(B) B
o (C) C
o (D) D
 
588. (1.2.3.7B-13) BOTH INTERNATIONAL & INLAND A 25-meter vessel trawling is required
to exhibit which shape(s)?
o (A) a cone, apex downward and outboard
o (B) a basket
o (C) two balls
(D) two cones, apexes together
 
589. (1.2.3.3-3) BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315).
Which direction may the vessel be heading?
(A) south (180)
o (B) east (090)
o (C) west (270)
o (d) northeast (045)
 
590. (1.2.3.8A-13) BOTH INTERNATIONAL & INLAND Which vessel would turn off its sidelights?
o (A) a vessel trolling underway
o (B) a vessel that is making way, not under command
(C) a vessel that is not under command, not making way
o (D) a vessel that is underway but not making way
 
591. (1.2.4.1-3) BOTH INTERNATIONAL & INLAND What is the duration of a "short blast" on the
whistle?
(A) 1 second
o (B) 4 to 6 seconds
o (c) 8 to 12 seconds
o (D) 12 to 15 seconds
 
592. (1.2.3.8B-33) BOTH INTERNATIONAL & INLAND A vessel towing astern is severely restricted in
its ability to maneuver. Which lights shall it exhibit while underway?
o (A) the masthead lights for a towing vessel
o (B) sidelights, stern light and towing light
o (C) the lights for a vessel restricted in its ability to maneuver
(D) All of the above
 
593. (1.2.3.5-23) BOTH INTERNATIONAL & INLAND A power-driven vessel exhibits the same lights
as which vessel?
o (A) vessel towing astern
(B) pushing vessel and a vessel being pushed, when they are in a composite unit
o (C) vessel towing, when not underway
o (D) sailing vessel
 
594. (1.2.4.3-8) BOTH INTERNATIONAL & INLAND You are on vessel "A", as shown in illustration
D032RR below and hear vessel "B" sound a signal indicating his intention to overtake you. You feel
it is not safe for vessel "B" to overtake you at the present time. What action should you take?
(A) Sound five or more short and rapid blasts
o (B) Sound three blasts of the whistle
o (C) Sound two short blasts
o (D) Not answer the whistle signal from vessel "B"
 
595. (1.2.3.6-13) BOTH INTERNATIONAL & INLAND You see ONLY the light shown in illustration
D080RR below. Which vessel are you observing?
o (A) not under command
o (B) engaged in fishing
o (C) towing
(D) under oars
 
596. (1.2.3.5 -78) BOTH INTERNATIONAL & INLAND A 20 meter vessel is towing another vessel
astern. The length of the tow from the stern of the towing vessel to the stern of the tow is 75 meters.
How many white towing masthead lights shall the towing vessel show at night?
o (A) 1
(B) 2
o (C) 3
o (D) 4
 
597. (1.2.1.2-4) BOTH INTERNATIONAL & INLAND Which situation would be a "special
circumstance" under the Rules?
o (A) Speed in fog
o (B) Two vessels crossing
o (C) Vessel at anchor
(D) More than two vessels meeting
 
598. (1.2.3.7A-17) BOTH INTERNATIONAL & INLAND A vessel fishing should display which of the
shapes shown in illustration D001RR below?
o (A) A
(B) B
o (C) C
o (D) D
 
599. (1.2.3.8B-8) BOTH INTERNATIONAL & INLAND Which of the following describes a
vessel exhibiting the lights shown in illustration D056RR below?
(A) underway and laying submarine cable
o (B) at anchor and dredging
o (C) underway and carrying dangerous cargo
o (D) towing a barge alongside
 
600. (1.2.4.3-17) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the
danger signal?
o (A) Only the stand-on vessel can sound the danger signal.
o (B) The danger signal consists of 4 or more short blasts of the whistle.
o (C) Distress signals may be used in place of the danger signal.
(D) When any vessel fails to understand the intentions of an approaching vessel she must sound
the danger signal.
 
601. (1.2.3.5-68) BOTH INTERNATIONAL & INLAND You are towing two barges astern. The length
of the tow from the stern of the tug to the stern of the last barge is 150 meters. How many white
towing identification lights should be displayed on the tugboat at night?
o (A) 1
(B) 2
o (C) 3
o (D) 4
 
602. (1.2.3.10-4) BOTH INTERNATIONAL & INLAND A vessel is displaying ONLY the lights shown
in illustration D045RR below. What type of vessel could this be?
o (A) vessel engaged in dredging at anchor with an obstruction on one side
o (B) vessel aground less than 50 meters
(C) pilot vessel less than 50 meters, underway and NOT engaged on pilotage duty
o (D) vessel engaged in fishing
 
603. (1.2.3.11B-18) BOTH INTERNATIONAL & INLAND Working lights shall be used to illuminate the
decks of which vessel?
o (A) not under command
o (B) constrained by her draft
(C) over 100 meters at anchor
o (d) All of the above
 
604. (1.2.3.11A-1) BOTH INTERNATIONAL & INLAND Which of the following describes a vessel
displaying the shapes shown in illustration D011RR below?
o (A) towing
o (B) conducting underwater operations
(C) aground
o (D) drifting
 
605. (1.2.4.4 -5) BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel
making way in dense fog. You observe what appears to be another vessel on radar half a mile
distant on your port bow and closing. You must take which action?
(A) Sound one prolonged blast
o (B) Exchange passing signals
o (C) Sound one short, one prolonged, and one short blast
o (D) Sound the danger signal
 
606. (1.2.3.7A-10) BOTH INTERNATIONAL & INLAND Which type of vessel is required to display the
lights shown in illustration D070RR below?
o (A) motorboat
(B) fishing vessel
o (C) sailboat
o (D) pilot boat
 
607. (1.2.3.8B-18) BOTH INTERNATIONAL & INLAND A vessel showing a rigid replica of the
International Code flag "A" is engaged in which operation?
o (A) mineclearance operations
o (B) dredging operations
o (C) fishing
(D) diving operations
 
608. (1.2.3.6-6) BOTH INTERNATIONAL & INLAND At night, you see the display of lights shown in
illustration D074RR below. These lights indicate which vessel?
(A) a sailing vessel
o (B) a 12-meter fishing vessel
o (C) an 8-meter power-driven vessel
o (D) a vessel not under command
 
609. (1.2.1.3-1) BOTH INTERNATIONAL & INLAND You are on watch in fog. Which vessel is "in
sight"?
(A) A vessel that you can see from the bridge
o (B) A vessel from which you can hear the fog signal
o (C) A radar target of which you have determined the course and speed
o (d) All of the above
 
610. (1.2.3.8B-9) BOTH INTERNATIONAL & INLAND Which is TRUE for a vessel restricted in her
ability to maneuver?
(A) she shall turn off her sidelights when not making way
o (B) keep out of the way of a vessel engaged in fishing
o (C) when operating in restricted visibility, sound a whistle signal of two prolonged and one short
blast
o (D) she shall show a shape of two diamonds in a vertical line
 
611. (1.2.1.3-38) BOTH INTERNATIONAL & INLAND What is a vessel "restricted in her ability to
maneuver"?
(A) A vessel towing unable to deviate from her course
o (B) A vessel constrained by her draft
o (C) A vessel not under command
o (D) A vessel underway in fog
 
612. (1.2.1.3-12) BOTH INTERNATIONAL & INLAND A vessel is being propelled both by sail and by
engines. Under the Rules, the vessel is.
o (A) not covered under any category
o (B) a sail vessel
o (C) a "special circumstance" vessel
(D) a power-driven vessel
 
613. (1.2.3.8B1-5) BOTH INTERNATIONAL & INLAND Which display indicates a vessel conducting
mine clearance operations?
o (A) Two balls in a vertical line at the end of each fore yard
o (B) One diamond near the foremast and one ball at each end of the yardarm
o (C) Three balls in a vertical line
(D) One ball near the foremast head and one ball at each end of the fore yard
 
614. (1.2.3.11B-7) BOTH INTERNATIONAL & INLAND An anchor ball need NOT be exhibited by an
anchored vessel if she is.
o (A) under 50 meters in length, and anchored in an anchorage
o (B) rigged for sail
(C) less than 7 meters in length, and not in or near an area where other vessels normally
navigate
o (D) over 150 meters in length
 
615. (1.2.3.8A-12) BOTH INTERNATIONAL & INLAND Which identifier lights and or shapes is a
vessel, which is unable to maneuver due to some exceptional circumstance required to exhibit?
o (A) during the day, three balls in a vertical line
o (B) during the day, three shapes, the highest and lowest being balls and the middle being a
diamond
(C) when making way at night, two all-round red lights, sidelights, and a stern light
o (D) when making way at night, masthead lights, sidelights, and a stern light
 
616. (1.2.3.3-5) BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315). That
vessel may be heading in which direction?
o (A) east (090)
o (b) northwest (315)
(C) southwest (225)
o (D) west (270)
 
617. (1.2.3.4 -16) BOTH INTERNATIONAL & INLAND You are on a vessel heading due north and see
the lights shown in illustration D051RR below, one point on your port bow. What direction could this
vessel be heading in?
(A) SE
o (B) NE
o (C) SW
o (D) NW
 
618. (1.2.1.3-30) BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes
o (A) a barge permanently affixed to the shore
o (B) a drilling unit attached to the Outer Continental Shelf
(C) non-displacement craft
o (d) All of the above
 
619. (1.2.3.5-36) BOTH INTERNATIONAL & INLAND In addition to sidelights, what light(s) should
the vessel being towed astern show?
o (A) Not under command lights
o (B) Range lights
(C) A stern light
o (D) A masthead light
 
620. (1.2.1.3-32) BOTH INTERNATIONAL & INLAND Under the Rules, the term "vessel" includes
o (A) non-self-propelled raft
o (B) hovercrafts
o (C) seaplanes
(D) All of the above
 
621. (1.2.1.3-27) BOTH INTERNATIONAL & INLAND According to the Navigation Rules, all of the
following are engaged in fishing EXCEPT a vessel.
o (A) using a dredge net
o (B) setting nets
(C) trolling
o (D) trawling
 
622. (1.2.3.8B-3) BOTH INTERNATIONAL & INLAND Which of the following describes a vessel
displaying the lights shown in illustration D057RR below?
o (A) a pilot vessel underway and making way on pilotage duty
o (B) a vessel towing and making way
(C) a vessel restricted in her ability to maneuver and not making way
o (D) a vessel engaged in fishing and not making way
 
623. (1.2.1.3-2) BOTH INTERNATIONAL & INLAND Which of the following in illustration D086RR
below represents the length of a vessel as defined by the Rules?
o (A) A
o (B) B
(C) C
o (D) D
 
624. (1.2.1.3-5) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a "vessel
engaged in fishing"?
(A) The vessel may be using nets, lines, or trawls.
o (B) The vessel sounds the same fog signal as a vessel underway, making no way.
o (C) The vessel may be trolling.
o (D) The vessel shows 2 lights in a vertical line, white over red.
 
625. (1.2.3.1-5) BOTH INTERNATIONAL & INLAND Navigation lights must be displayed in all
weathers from sunset to sunrise. They also.
o (A) must be displayed when day signals are being used
o (B) must be displayed when moored to a pier
o (C) may be extinguished at night on open waters when no other vessels are in the area
(D) may be displayed during daylight
 
626. (1.2.3.11B-16) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a
vessel of 75 meters in length, at anchor?
o (A) She may use her working lights to illuminate her decks.
o (B) She must show an all-round white light forward.
o (C) She must show a second all-round white light aft.
(D) All of the above
 
627. (1.2.1.3-31) BOTH INTERNATIONAL & INLAND As defined in the Rules, the term "vessel" would
include which of the following?
o (A) seaplanes
o (B) barges
o (C) non-displacement craft
(D) All of the above
 
628. (1.2.1.3-6) BOTH INTERNATIONAL & INLAND The term "power-driven vessel" refers to any
vessel.
o (A) making way against the current
o (B) with propelling machinery onboard whether in use or not
o (C) traveling at a speed greater than that of the current
(D) with propelling machinery in use
 
629. (1.2.3.10-3) BOTH INTERNATIONAL & INLAND A vessel is displaying ONLY the lights shown
in illustration D061RR below. Which vessel is this?
o (A) a fishing vessel aground
o (B) fishing and hauling her nets
(C) a pilot vessel at anchor
o (D) fishing
 
630. (1.2.4.3-2) BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead
sound two prolonged blasts on the whistle. Which action should you take?
o (A) Sound whistle signals only if you change course
(B) Sound only fog signals until the other vessel is sighted
o (C) Not sound any whistle signals until the other vessel is sighted
o (D) Sound two blasts and change course to the left
 
631. (1.2.3.8B-14) BOTH INTERNATIONAL & INLAND Which vessel would exhibit the lights shown in
illustration D056RR below?
o (A) a vessel fishing at anchor
(B) a vessel dredging while underway
o (C) a vessel transferring dangerous cargo at a berth
o (D) a vessel restricted in her ability to maneuver, underway but not making way
 
632. (1.2.3.5-15) BOTH INTERNATIONAL & INLAND Which identifier is an inconspicuous, partly
submerged vessel or object being towed, where the length of tow is 100 meters, required to show?
(A) a diamond shape
o (B) two red lights in a vertical line
o (C) a black ball
o (D) yellow lights at each end
 
633. (1.2.1.3-7) BOTH INTERNATIONAL & INLAND What determines if a vessel is "restricted in her
ability to maneuver"?
(A) Whether the nature of the vessel's work limits maneuverability required by the Rules
o (B) Whether or not the vessel is the give-way vessel in a meeting situation
o (C) The vessel's draft in relation to the available depth of water
o (D) Whether or not all of the vessel's control equipment is in working order
 
634. (1.2.1.3-19) BOTH INTERNATIONAL & INLAND By definition which vessel is unable to keep out
of the way of another vessel?
o (A) Vessel towing
o (B) Sailing vessel
(C) Vessel restricted in her ability to maneuver
o (D) Vessel engaged in fishing
 
635. (1.2.1.3-33) BOTH INTERNATIONAL & INLAND For the purpose of the Rules, except where
otherwise required, the term.
o (A) "vessel engaged in fishing" includes a vessel fishing with trolling lines
o (B) "seaplane" includes non-displacement craft
o (C) "vessel restricted in her ability to maneuver" includes fishing vessels
(D) "vessel" includes seaplanes
 
636. (1.2.1.3-48) BOTH INTERNATIONAL & INLAND For the purpose of the Rules, except where
otherwise required, the term.
o (A) "vessel engaged in fishing" includes a vessel fishing with trolling lines
(B) "vessel" includes wing in ground craft
o (C) "vessel restricted in her ability to maneuver" includes fishing vessels
o (D) "seaplane" includes non-displacement craft
 
637. (1.2.4.1-1) BOTH INTERNATIONAL & INLAND How long is the duration of a prolonged blast of
the whistle?
o (A) 2 to 4 seconds
(B) 4 to 6 seconds
o (C) 6 to 8 seconds
o (D) 8 to 10 seconds
 
638. (1.2.1.3-3) BOTH INTERNATIONAL & INLAND In illustration D087RR below, which represents
the breadth as defined in the Rules?
(A) A
o (B) B
o (C) C
o (D) D
 
639. (1.2.1.3-46) BOTH INTERNATIONAL & INLAND What is a "vessel restricted in her ability to
maneuver"?
(A) A vessel laying revetment mats to provide bank protection along a channel
o (B) A large tanker that is being towed as a dead ship to dry dock
o (C) A vessel fishing with a bottom trawl that must remain on course
o (D) A deep-draft vessel that can only navigate in a dredged channel
 
640. (1.2.3.8B-25) BOTH INTERNATIONAL & INLAND You see a vessel displaying three lights in a
vertical line. The highest and lowest lights are red and the middle light is white. She is also showing
a white light at the stern, which is lower than the forward light. Which vessel could you be observing?
o (A) a vessel not under command
o (B) a pilot vessel with port side to you
o (C)a vessel aground
(D) a survey vessel
 
641. (1.2.1.3-28) BOTH INTERNATIONAL & INLAND In order for a vessel to be "engaged in fishing"
she must be.
o (A) using a seine of some type
o (B)underway
(C) using gear which restricts her maneuverability
o (D) using gear which extends more than 50 meters outboard
 
642. (1.2.3.8B-36) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a
towing vessel which, due to the nature of her work, is unable to keep out of the way of another
vessel?
o (A) By night, she would show the same lights and shapes as a vessel not under command.
o (B) By day, she shall carry a black cylinder shape.
o (C) By day, she shall carry two black balls in a vertical line.
(D) By day, she would show the same shapes as a vessel restricted in her ability to maneuver.
 
643. (1.2.3.5-51) BOTH INTERNATIONAL & INLAND You are towing several barges astern at night.
Which statement is TRUE?
o (A) only the first and the last barges in the tow must be lighted
o (B) only the last barge on the tow must be lighted
(C) each barge in the tow must be lighted
o (D) only manned barges must be lighted
 
644. (1.2.3.5-41) BOTH INTERNATIONAL & INLAND What do the lights displayed in illustration
D073RR indicate?
(A) vessel towing astern
o (B) vessel laying submarine cable
o (C) fishing vessel trolling
o (D) vessel dredging
 
645. (1.2.3.6-14) BOTH INTERNATIONAL & INLAND If a rowboat underway does NOT show the
lights specified for a sailing vessel underway, it shall show which of the following?
o (A) a combined lantern showing green to starboard and red to port and shown from sunset to
sunrise
o (B) a combined lantern showing green to starboard and red to port and shown in sufficient time to
prevent collision
(C) a white light exhibited in sufficient time to prevent collision
o (D) an all-round yellow light from sunset to sunrise
 
646. (1.2.4.3 -3) BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown
in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. You are on vessel
"B" and doubt that sufficient action is being taken by vessel "A" . What action should you take?
(A) Sound at least five short and rapid blasts
o (B) Maintain course and speed
o (C) Alter course to the right or slow down
o (D) Sound one short blast and maintain course and speed
 
647. (1.2.4.2-4) BOTH INTERNATIONAL & INLAND Which statement is TRUE regarding equipment
for sound signals?
o (A) Automatic sounding of the signals is not permitted.
o (B) Any vessel over 12 meters in length must be provided with a gong.
o (C) A vessel of less than 12 meters in length need not have any sound signaling equipment.
(D) Manual sounding of the bell and gong must always be possible.
 
648. (1.2.3.11B-3) BOTH INTERNATIONAL & INLAND At night, a vessel which is less than 7 meters
in length and anchored in an area where other vessels do not normally navigate is.
o (A) required to show one white light
o (B) required to show a flare-up light
o (C) required to show sidelights and a stern light
(D) not required to show any anchor lights
 
649. (1.2.3.1 -6) BOTH INTERNATIONAL & INLAND When must the shapes for a vessel restricted in
her ability to maneuver be shown?
o (A) between sunset and sunrise
o (b) ONLY between 8 AM and 4 PM daily
o (C) during daylight hours except in restricted visibility
(D) during daylight hours
 
650. (1.2.3.4 -8) BOTH INTERNATIONAL & INLAND You are on a vessel heading due north and see
the lights shown in illustration D051RR below one point on your port bow. This vessel could be
heading in what direction?
o (A) SW
o (B) NW
o (C) NE
(D) SE
 
651. (1.2.1.3-21) BOTH INTERNATIONAL & INLAND A vessel "restricted in her ability to maneuver"
is one which.
o (A) due to adverse weather conditions is unable to maneuver as required by the rules
(B) from the nature of her work is unable to maneuver as required by the rules
o (C) through some exceptional circumstance is unable to maneuver as required by the rules
o (D) has lost steering and is unable to maneuver
 
652. (1.2.3.8B-15) BOTH INTERNATIONAL & INLAND You are approaching a vessel dredging during
the day and see two balls in a vertical line on the port side of the dredge. What do these shapes
indicate?
o (A) the dredge is moored
o (B) you should pass on the port side of the dredge
(C) there is an obstruction on the port side of the dredge
o (D) the dredge is not under command
 
653. (1.2.1.3-49) BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes which
of the following?
(A) wing in ground craft
o (B) a drilling unit attached to the Outer Continental Shelf
o (C) a barge permanently affixed to the shore
o (d) All of the above
 
654. (1.2.3.7B-1) BOTH INTERNATIONAL & INLAND Which vessel must show an after masthead
light, if over 50 meters in length?
(A) A vessel trawling
o (B) A vessel engaged in fishing
o (C) A vessel not under command
o (D)A vessel at anchor
 
655. (1.2.3.8B-6) BOTH INTERNATIONAL & INLAND By day, when it is impracticable for a small
vessel engaged in diving operations to display the shapes for a vessel engaged in underwater
operations, which she shall display?
o (A) three black balls in a vertical line
(B) a rigid replica of the International Code flag "A"
o (C) two red balls in a vertical line
o (D) a black cylinder
 
656. (1.2.3.6-25) BOTH INTERNATIONAL & INLAND Which vessel would be required to show a
white light from a lantern exhibited in sufficient time to prevent collision?
o (A) A small vessel fishing
(B) A rowboat
o (C) A 6-meter motorboat
o (D) A 9-meter sailing vessel
 
657. (1.2.1.3-29) BOTH INTERNATIONAL & INLAND A vessel is "engaged in fishing" when
o (A) she has any fishing gear on board
o (B) she is using any type of gear, other than lines
(C) she is using fishing apparatus which restricts her maneuverability
o (D) her gear extends more than 100 meters from the vessel
 
658. (1.2.3.8B1-6) BOTH INTERNATIONAL & INLAND Which shapes is a vessel conducting mine
clearing operations required to exhibit?
o (A) two balls in a vertical line
o (B) three balls in a vertical line
o (C) one diamond near the foremast head and one ball at each fore yard
(D) one ball near the foremast and one ball at each fore yard
 
659. (1.2.1.3-9) BOTH INTERNATIONAL & INLAND What does the word "length" refer to?
o (A) Registered length
(B) Length overall
o (c) Waterline length
o (D) Length between the perpendiculars
 
660. (1.2.1.3-11) BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the
Rules?
o (A) A pilot vessel at anchor
o (B) A vessel made fast to a single point mooring buoy
(C) A vessel engaged in towing, not making way
o (D) A vessel which has run aground
 
661. (1.2.1.3-36) BOTH INTERNATIONAL & INLAND Which vessel is a "vessel restricted in her ability
to maneuver" under the Rules?
o (A) A vessel engaged in fishing
o (B) A vessel not under command
(C) A vessel mineclearing
o (D)A vessel at anchor
 
662. (1.2.3.5-43) BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown in
illustration D063RR below is which of the following?
o (A) not under command
o (B) underway and more than 50 meters in length
o (C) fishing
(D) towing astern
 
663. (1.2.1.3-13) BOTH INTERNATIONAL & INLAND The term "restricted visibility" as used in the
Rules refers.
o (A) only to visibility of less than one-half of a mile
o (B) only to fog
(C) to any condition where visibility is restricted
o (D) to visibility where you cannot see shore
 
664. (1.2.3.11A-4) BOTH INTERNATIONAL & INLAND Which shape must be shown by a vessel 25
meters in length aground during daylight hours?
o (A) One black ball
o (B) Two black balls
(C) Three black balls
o (D) Four black balls
 
665. (1.2.1.3-14) BOTH INTERNATIONAL & INLAND What does the word "breadth" mean?
o (A) Molded breadth
o (B) Breadth at the uppermost continuous deck
(C) Greatest breadth
o (D) Breadth at the load waterline
 
666. (1.2.1.3-15) BOTH INTERNATIONAL & INLAND A vessel is "in sight" of another vessel when
she.
(A) can be observed visually from the other vessel
o (B) can be observed by radar
o (C) is sounding a fog signal which can be heard on the other vessel
o (D) has determined that risk of collision exists
 
667. (1.2.1.3-39) BOTH INTERNATIONAL & INLAND All of the following vessels are "restricted in
their ability to maneuver" EXCEPT a vessel.
o (A) dredging
(B) not under command
o (C) mineclearing
o (D) laying a pipeline
 
668. (1.2.3.7A-2) BOTH INTERNATIONAL & INLAND A vessel is exhibiting the lights shown in
illustration D082RR below. Which can you conclude about the vessel?
(A) it is a fishing vessel
o (B) it is a pilot boat on duty
o (C) it is a sailing vessel
o (D) it is a trawling vessel
 
669. (1.2.1.3-40) BOTH INTERNATIONAL & INLAND According to the Rules, which vessel is NOT
"restricted in her ability to maneuver"?
o (A) A vessel dredging
o (B) A vessel mineclearing
o (C) A vessel servicing a navigation marker
(D) A sailing vessel
 
670. (1.2.1.3-47) BOTH INTERNATIONAL & INLAND There are two classes of vessels which do not
have to comply with the rule regarding traffic separation schemes, to the extent necessary to carry
out their work. One of those is a vessel.
(A) servicing a navigational aid
o (B) engaged in fishing
o (C) on pilotage duty
o (D) towing another
 
671. (1.2.3.4-24) BOTH INTERNATIONAL & INLAND Which power-driven vessel is NOT required to
carry a light in the position of the after masthead light?
o (A) A vessel of 60 meters in length towing astern
(B) A vessel of 45 meters in length trolling
o (C) A pushing vessel and a vessel being pushed, in a composite unit and 100 meters in length
o (D) Any vessel constrained by her draft
 
672. (1.2.3.5-38) BOTH INTERNATIONAL & INLAND Which vessel shall display the lights shown in
illustration D060RR below?
(A) a vessel towing
o (B)
a fishing vessel
o (C) a vessel that is broken down
o (D) a vessel being towed
 
673. (1.2.3.1-1) BOTH INTERNATIONAL & INLAND When must the lights required by the Rules be
shown?
o (A) ONLY from sunset to sunrise
o (B) at all times
o (C) whenever a look-out is posted
(D) from sunrise to sunset in restricted visibility
 
674. (1.2.3.6-20) BOTH INTERNATIONAL & INLAND Which shape shall a 22-meter sailing vessel
exhibit when it is being propelled by machinery during daylight hours?
o (A) black diamond
o (B) basket
o (C) black ball
(D) black cone
 
675. (1.2.3.8B1-3) BOTH INTERNATIONAL & INLAND A vessel engaged in mine clearance
operations shows special identity lights. Which is TRUE of these lights?
(A) they indicate that other vessels should not approach within 1000 meters
o (B) they are required to have an arc of 225 and green in color
o (C) used instead of the masthead lights
o (D) All of the above
 
676. (1.2.3.11A-10) BOTH INTERNATIONAL & INLAND Which shape would a vessel aground show
during daylight?
o (A) One black ball
o (B) Two black balls
(C) Three black balls
o (D) Four black balls
 
677. (1.2.3.11B-10) BOTH INTERNATIONAL & INLAND What shape would a vessel at anchor show
during daylight?
(A) One black ball
o (B) Two black balls
o (C) Three black balls
o (D) No signal
 
678. (1.2.3.1-3) BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those
prescribed by the Rules as long as the additional lights comply with which requirement(s)?
o (A) are not the color of either sidelight
o (B) have a lesser range than the prescribed lights
(C) do not interfere with the keeping of a proper look-out
o (d) All of the above
 
679. (1.2.3.1-4) BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those
prescribed by the Rules as long as the additional lights meet which requirement(s)?
(A) do not impair the visibility or distinctive character of the prescribed lights
o (B) have a lesser range of visibility than the prescribed lights
o (C) are not the same color as either sidelight
o (d) All of the above
 
680. (1.2.3.1-7) BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those
prescribed by the Rules as long as the additional lights.
o (A) do not impair the visibility or distinctive character of the prescribed lights
o (B) do not interfere with the keeping of a proper look-out
o (C) cannot be mistaken for the lights specified elsewhere in the Rules
(D) All of the above
 
681. (1.2.3.10-1) BOTH INTERNATIONAL & INLAND At night, you see the lights shown in
illustration D078RR below. These lights would indicate which vessel?
o (A) not under command
(B) on pilotage duty and underway
o (C) restricted in her ability to maneuver
o (D) engaged in fishing and making way
 
682. (1.2.3.5-27) BOTH INTERNATIONAL & INLAND The display of lights shown in illustration
D048RR below could represent which vessel?
o (A) a submarine on the surface
(B) a tug and a barge being towed astern
o (C) a vessel not under command
o (D) a sailing vessel
 
683. (1.2.3.11A-5) BOTH INTERNATIONAL & INLAND What shape(s) is/are required to be shown by
a vessel aground?
o (A) A cylinder
(B) Three black balls in a vertical line
o (C) Two black balls in a vertical line
o (D) Two cones with their apexes together
 
684. (1.2.3.7B-4) BOTH INTERNATIONAL & INLAND Which vessel must show a masthead light abaft
of and higher than her identifying lights?
o (A) A 100-meter vessel not under command
(B) A 55-meter vessel trawling
o (C) A 20-meter vessel engaged on pilotage duty
o (D) A 55-meter vessel fishing
 
685. (1.2.3.7A-11) BOTH INTERNATIONAL & INLAND Which vessel shall NOT show her sidelights?
o (A) A vessel that is not under command making way
(B) A fishing vessel that is not making way
o (C) A sailing vessel which is becalmed
o (D) A vessel engaged in underwater operations
 
686. (1.2.3.10-5) BOTH INTERNATIONAL & INLAND When is a pilot vessel on pilotage duty at night
required to show sidelights and a stern light?
o (A) only when the identifying lights are not being shown
o (B) only when making way
o (C) when at anchor
(D) at any time when underway
 
687. (1.2.3.2-10) BOTH INTERNATIONAL & INLAND Which is a characteristic of a "flashing light"?
o (A) is yellow in color
o (B) is visible over an arc of the horizon of not less than 180 nor more than 225
(C) flashes at regular intervals at a frequency of 120 flashes or more per minute
o (d) All of the above
 
688. (1.2.3.10-6) BOTH INTERNATIONAL & INLAND An anchored vessel on pilotage duty must show
which light(s) at night?
(A) A white light over a red light and anchor lights
o (B) A white light over a red light only
o (C) A stern light only
o (D) Anchor lights only
 
689. (1.2.3.11B-11) BOTH INTERNATIONAL & INLAND If you anchor your 25-meter vessel in a
harbor, what light(s) must you show?
(A) One all-round white light
o (B) One all-round red light
o (C) Two all-round white lights
o (D) All the deck house lights
 
690. (1.2.3.7A-1) BOTH INTERNATIONAL & INLAND The vessel whose lights are shown in
illustration D082RR below is navigating in a narrow channel. Which statement about this vessel is
TRUE?
(A) It shall not impede the passage of any other vessel navigating within the channel or fairway.
o (B) It shows two balls
o (C) It may anchor in the channel or fairway
o (D) It is the stand-on vessel
 
691. (1.2.3.10-8) BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when
underway and not making way?
(A) A pilot vessel
o (B) A vessel engaged in dredging
o (C) A vessel trawling
o (D) A vessel not under command
 
692. (1.2.3.11A-3) BOTH INTERNATIONAL & INLAND The lights displayed in illustration D044RR
below would be shown by a vessel described by which of the following?
(A) aground
o (B) not under command and is making way
o (C) not under command and is dead in the water
o (D) laying or picking up navigation marks
 
693. (1.2.3.11A-7) BOTH INTERNATIONAL & INLAND What shape will a vessel 30 meters in
length aground display?
o (A) a cylinder
o (B) two black balls in a vertical line
o (C) one black ball
(D) three black balls in a vertical line
 
694. (1.2.3.2-7) BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of
how many degrees?
o (A) 90
o (B) 112.5
(C) 225
o (D) 360
 
695. (1.2.3.11A-8) BOTH INTERNATIONAL & INLAND Which signal would a vessel aground show
during daylight?
o (A) One black ball
o (B) Two black balls
(C) Three black balls
o (D) Four black balls
 
696. (1.2.3.5-71) BOTH INTERNATIONAL & INLAND Which vessel must exhibit three white
masthead lights in a vertical line?
o (A) A vessel being towed
(B) A vessel whose tow exceeds 200 meters astern
o (C) Any vessel towing astern
o (D) A vessel not under command, at anchor
 
697. (1.2.3.5-26) BOTH INTERNATIONAL & INLAND Which of the following shapes shall a power-
driven vessel when towing (length of tow exceeds 200 meters) exhibit during daylight?
o (A) two cones, apexes together
o (b) a black ball
o (C) one cone, apex upward
(D) a diamond shape
 
698. (1.2.3.4-12) BOTH INTERNATIONAL & INLAND You see the display of lights shown in
illustration D071RR below. What do these lights indicate?
o (A) a vessel dredging
(B) a vessel approaching head-on
o (C) a vessel fishing with nets extending more than 150 meters
o (D) a vessel trawling
 
699. (1.2.3.5-76) BOTH INTERNATIONAL & INLAND A towing vessel 30 meters in length is pushing
barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?
o (A) One
(B) Two
o (c) Three
o (d) Four
 
700. (1.2.3.7B-12) BOTH INTERNATIONAL & INLAND According to the Rules, which operation would
require the vessel to display two cones with their apexes together?
o (A) Sailing
o (B) Minesweeping
o (C) Dredging
(D) Trawling
 
701. (1.2.3.8B-21) BOTH INTERNATIONAL & INLAND Which vessel shall show three lights in a
vertical line, the top and bottom being red and the middle being white?
o (A) A pilot vessel while on duty
o (B) A vessel trawling
(C) A vessel engaged in diving operations
o (d) All of the above
 
702. (1.2.3.11A-9) BOTH INTERNATIONAL & INLAND Signals required for vessels aground include
o (A) by night, the anchor lights for a vessel of her length, and three red lights in a vertical line
o (B) a short, a prolonged, and a short blast
(C) by day, three black balls in a vertical line
o (D) All of the above
 
703. (1.2.3.5-2) BOTH INTERNATIONAL & INLAND Two barges are being pushed ahead by a
tugboat. Which statement is TRUE concerning lights on the barges?
(A) The barges should be lighted as one vessel.
o (B) Each vessel should show sidelights.
o (C) Each vessel should show at least one white light.
o (D) The barges should be lighted as separate units.
 
704. (1.2.3.11B-2) BOTH INTERNATIONAL & INLAND A vessel displaying the shape shown in
illustration D013RR below is doing which of the following?
o (A) being towed
(B) anchored
o (C) fishing
o (D) towing
 
705. (1.2.3.8A-15) BOTH INTERNATIONAL & INLAND Which shall a vessel not under
command display?
o (A) three red lights at night and two black balls during daylight
o (B) three red lights at night and three black balls during daylight
o (C) two red lights at night and three black balls during daylight
(D) two red lights at night and two black balls during daylight
 
706. (1.2.3.6-1) BOTH INTERNATIONAL & INLAND You see ONLY the light shown in illustration
D080RR below. This could be what type of vessel?
(A) under oars
o (B) not under command
o (C) towing
o (D) engaged in fishing
 
707. (1.2.3.11B-15) BOTH INTERNATIONAL & INLAND Which light(s) is/are required by a 200-meter
vessel at anchor?
o (A) In the after part of the vessel, a 135 white light
o (B) In the forepart of the vessel, a 225 white light
o (C) In the fore part of the vessel, a 135 white light
(D) Any available working lights to illuminate the decks
 
708. (1.2.3.4-23) BOTH INTERNATIONAL & INLAND What is the minimum vessel length which must
show two white masthead lights, one forward and one aft, when underway at night?
o (A) 100 meters
(B) 50 meters
o (c) 20 meters
o (D) 7 meters
 
709. (1.2.3.6 -26) BOTH INTERNATIONAL & INLAND Which vessel would display a cone, apex
downward?
o (A) A vessel being towed
(B) A vessel proceeding under sail and machinery
o (C) A vessel engaged in diving operations
o (D) A fishing vessel with outlying gear
 
710. (1.2.3.11B-17) BOTH INTERNATIONAL & INLAND Which lights shall a 200-meter vessel exhibit
when at anchor?
o (A) In the forepart of the vessel, a 225-degree white light
o (B) In the forepart of the vessel, a 112.5-degree white light
(C) Working lights to illuminate the decks
o (D) In the after part of the vessel, a 112.5-degree white light
 
711. (1.2.3.11B-4) BOTH INTERNATIONAL & INLAND Which of the shapes shown in illustration
D016RR below must you show when at anchor?
(A) A
o (B) B
o (C) C
o (D) D
 
712. (1.2.3.5-67) BOTH INTERNATIONAL & INLAND A towing vessel is towing two barges astern.
The length of the tow from the stern of the tug to the stern of the last barge is 250 meters. The
towing vessel is 45 meters in length. How many white masthead lights should be displayed on the
tugboat at night?
o (A) 1
o (B) 2
(C) 3
o (D) 4
 
713. (1.2.3.11B-1) BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights shown in
illustration D065RR is doing which of the following?
o (A) drifting
(B) anchored
o (C) being towed
o (D) fishing
 
714. (1.2.3.11B-5) BOTH INTERNATIONAL & INLAND You are on a 25-meter vessel at anchor.
Which light(s) are you required to show?
(A) one all-round white light
o (B) one all-round white light and the sidelights
o (C) the sidelights and a stern light
o (D) two all-round white lights
 
715. (1.2.3.5-80) BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when
underway and not making way?
(A) A vessel pushing ahead
o (B) A vessel trawling
o (C) A vessel not under command
o (D) A vessel engaged in dredging
 
716. (1.2.3.11B-6) BOTH INTERNATIONAL & INLAND A vessel at anchor shall display, between
sunrise and sunset, on the forward part of the vessel where it can best be seen which shape?
o (A) two black balls
(B) one black ball
o (C) one red ball
o (D) two orange and white balls
 
717. (1.2.3.11B-9) BOTH INTERNATIONAL & INLAND A vessel at anchor will show which shape?
o (A) cylinder
o (B) cone
(C) ball
o (D) double cone, apexes together
 
718. (1.2.3.11B-14) BOTH INTERNATIONAL & INLAND What is the minimum length of vessels
required to show two anchor lights?
o (A) 40 meters
(B) 50 meters
o (c) 60 meters
o (D) 70 meters
 
719. (1.2.3.4-7) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below. Vessel "B" is an air-cushion vessel operating in the non-displacement
mode. In addition to a steady white light which other light will vessel "A" observe on vessel "B"?
o (A) Flashing red light
o (B) Steady green light
(C) Flashing yellow light
o (D) Flashing white light
 
720. (1.2.3.2-2) BOTH INTERNATIONAL & INLAND The stern light shall be positioned such that it will
show from dead astern to how many degrees on each side of the stern of the vessel?
o (A) 135.0
o (B) 112.5
(C) 67.5
o (D) 22.5
 
721. (1.2.3.2-4) BOTH INTERNATIONAL & INLAND The white masthead light required for a power-
driven vessel under the Rules is visible over how many degrees of the horizon?
o (A) 022.5
o (B) 112.5
(C) 225.0
o (D) 360.0
 
722. (1.2.3.7A-7) BOTH INTERNATIONAL & INLAND What type of vessel displays the lights as
shown in illustration D082RR?
o (A) anchored
(B) fishing
o (C) sailing
o (D) a pilot boat
 
723. (1.2.3.2-5) BOTH INTERNATIONAL & INLAND In illustration D023RR below "B" represents the
arc of visibility of which of the following?
o (A) stern light
o (B) red sidelight
(C) green sidelight
o (D) yellow flashing light
 
724. (1.2.3.8A-5) BOTH INTERNATIONAL & INLAND Which of the following describes a
vessel exhibiting the lights shown in illustration D084RR below?
o (A) towing
o (B) dredging
o (C) showing improper lights
(D) not under command
 
725. (1.2.3.2-6) BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the
arc of visibility of which of the following?
o (A) red sidelight
o (B) green sidelight
o (C) yellow flashing light
(D) None of the above
 
726. (1.2.3.2-18) BOTH INTERNATIONAL & INLAND Which is TRUE for a towing light?
o (A) flashes at regular intervals of 50-70 flashes per minute
o (B) shows an unbroken light over an arc of the horizon of not less than 180 nor more than 225
(C) is yellow in color
o (d) All of the above
 
727. (1.2.3.5-16) BOTH INTERNATIONAL & INLAND A 49 meter seagoing tug has a tow greater than
200 meters as shown in illustration D024RR below and is severely restricted in her ability to deviate
from her course. Which lights would be displayed from the towing vessel?
o (A) Three white masthead lights, red-white-red all-round lights, sidelights and two towing lights
(B) Three white masthead lights, red-white-red all-round lights, sidelights, stern light and a towing
light
o (C) Three white masthead lights, two all-round red lights, sidelights, stern light and a towing light
o (D) None of the above
 
728. (1.2.3.2-8) BOTH INTERNATIONAL & INLAND In illustration D023RR below which item shows
the arc of visibility of a green sidelight?
o (A) A
(B) B
o (C) C
o (D) D
 
729. (1.2.3.2-11) BOTH INTERNATIONAL & INLAND In illustration D023RR below item "B" shows the
arc of visibility of which of the following lights?
o (A) red sidelight
o (B) white masthead light
o (C) stern light
(D) green sidelight
 
730. (1.2.3.3-4) BOTH INTERNATIONAL & INLAND You see a vessel's green sidelight bearing due
east from you. Which direction may the vessel be heading?
o (A) northwest (315)
o (b) northeast (045)
o (C) east (090)
(D) southwest (225)
 
731. (1.2.3.5-81) BOTH INTERNATIONAL & INLAND A 30-meter tug is underway and NOT towing. At
night, this vessel must show sidelights and which additional light(s)?
o (A) a stern light ONLY
(B) one masthead light and a stern light
o (C) three masthead lights and a stern light
o (D) two masthead lights and a stern light
 
732. (1.2.3.6-22) BOTH INTERNATIONAL & INLAND Which vessel may carry her sidelights and stern
light in one combined lantern?
o (A) a 25-meter power-driven vessel trolling
(B) a 15-meter sailing vessel
o (C) a 20-meter vessel engaged in fishing and making way
o (D) a 15-meter sail vessel propelled by machinery
 
733. (1.2.3.4-6) BOTH INTERNATIONAL & INLAND Which vessel may show identifying lights when
not actually engaged in her occupation?
o (A) A fishing vessel
o (B) A pilot vessel
o (C) A mineclearance vessel
(D) None of the above
 
734. (1.2.3.2-20) BOTH INTERNATIONAL & INLAND A towing light, according to the Rules, is which
color?
o (A) white light
o (B) blue light
(C) yellow light
o (D) red light
 
735. (1.2.3.2-12) BOTH INTERNATIONAL & INLAND While underway at night you are coming up on
a vessel from astern. What lights would you expect to see?
(A) One white light
o (B) Red and green sidelights
o (C) Two white lights
o (D) One white light and red and green sidelights
 
736. (1.2.3.2-13) BOTH INTERNATIONAL & INLAND In illustration D023RR below item
"A" represents the arc of visibility of which of the following lights?
o (A) stern light
o (B) white masthead light
(C) red sidelight
o (D) green sidelight
 
737. (1.2.3.2-14) BOTH INTERNATIONAL & INLAND In illustration D023RR below item
"D" represents the arc of visibility of which of the following lights?
o (A) green sidelight
o (B) stern light
o (C) white masthead light
(D) None of the above
 
738. (1.2.3.2-15) BOTH INTERNATIONAL & INLAND A "flashing light", by the definition given in the
rules, is a light that.
o (A) is red in color
(B) flashes at regular intervals at a frequency of 120 flashes or more per minute
o (C) is visible over an arc of the horizon of 360
o (d) All of the above
 
739. (1.2.3.2-21) BOTH INTERNATIONAL & INLAND As defined in the Rules, a towing light is a
yellow light having the same characteristics as which light?
o (A) all-round light
o (B) sidelight
(C) stern light
o (D) masthead light
 
740. (1.2.3.3-2) BOTH INTERNATIONAL & INLAND You are heading due east (090) and observe a
vessel's red sidelight on your port beam. The vessel may be heading in which direction?
o (A) southeast (135)
o (b) northwest (315)
o (C) north (000)
(D) southwest (225)
 
741. (1.2.3.4-1) BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after
masthead lights when underway?
o (A) A 200-meter sailing vessel
(B) A 50-meter power-driven vessel
o (C) A 100-meter vessel engaged in fishing
o (d) All of the above
 
742. (1.2.3.4-3) BOTH INTERNATIONAL & INLAND Which vessel is required to exhibit an all-round
flashing yellow light?
o (A) a vessel engaged in diving operations
(B) an air-cushion vessel in the non-displacement mode
o (C) a vessel towing a submerged object
o (D) a vessel not under command
 
743. (1.2.3.4-22) BOTH INTERNATIONAL & INLAND At night, a power-driven vessel less than 12
meters in length may, instead of the normal navigation lights, show sidelights and one.
o (A) flashing white light
o (B) yellow light
o (C) flashing yellow light
(D) white light
 
744. (1.2.3.4 -9) BOTH INTERNATIONAL & INLAND What is the maximum length of a power-driven
vessel which may show an all-round white light and sidelights instead of a masthead light, sidelights
and a stern light?
o (A) 6.9 meters
o (b) 9.9 meters
(C) 11.9 meters
o (d) 19.9 meters
 
745. (1.2.3.4-17) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a 75-
meter power-driven vessel underway at night?
(A) She must exhibit forward and after masthead lights.
o (B) She must exhibit an all-round white light at the stern.
o (C) She may exhibit a red light over a green light forward.
o (D) She must exhibit only a forward masthead light.
 
746. (1.2.3.4-2) BOTH INTERNATIONAL & INLAND You see a vessel displaying ONLY the lights
shown in illustration D045RR below. This vessel could be which of the following?
(A) power-driven vessel underway
o (B) pilot vessel on pilotage duty
o (C) vessel engaged in launching or recovering aircraft
o (D) vessel engaged in fishing at anchor
 
747. (1.2.3.5-4) BOTH INTERNATIONAL & INLAND Which display of lights shown in illustration
D072RR below indicates a 65-meter tug towing a barge astern, length of tow 120 meters?
o (A) A
o (B) B
(C) C
o (D) D
 
748. (1.2.3.7A-12) BOTH INTERNATIONAL & INLAND You see the display of lights shown in
illustration D054RR below, this could be which of the following?
o (A) fishing vessel at anchor
o (B) pilot vessel with a motor launch alongside
o (C) fishing vessel adrift and fishing with handlines
(D) fishing vessel with outlying gear more than 150 meters
 
749. (1.2.3.4-5) BOTH INTERNATIONAL & INLAND An all-round flashing yellow light may be
exhibited by which vessel?
o (A) a vessel laying cable
o (B) a vessel not under command
(C) an air-cushion vessel
o (D) a vessel towing a submerged object
 
750. (1.2.3.5 -34) BOTH INTERNATIONAL & INLAND Lighting requirements in inland waters are
different from those in international waters for.
o (A) barges being pushed ahead
o (B) vessels pushing ahead
o (C) vessels being towed alongside
(D) All of the above
 
751. (1.2.3.4-4) BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in
illustration D017RR below, and will pass without changing course. Vessel "B" is an air-cushion
vessel operating in the non-displacement mode. Which light will vessel "A" observe from vessel "B"?
o (A) Green light
o (B) flashing red light
(C) flashing yellow light
o (D) flashing white light
 
752. (1.2.3.6-12) BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single
green light. Which vessel have you sighted?
o (A) a vessel drifting
o (B) a small motorboat underway
(C) a sailing vessel underway
o (D) a vessel at anchor
 
753. (1.2.3.4-11) BOTH INTERNATIONAL & INLAND You are on watch and sight a vessel showing
only the lights in illustration D059RR below. What type of vessel do these lights represent?
o (A) vessel engage in trawling
(B) power-driven vessel
o (C) sailing vessel
o (D) mineclearance vessel
 
754. (1.2.3.5-73) BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the
length of the tow is 100 meters. In addition to sidelights, which lights are required to be shown to
fully comply with the Rules?
(A) A masthead light forward, two masthead lights aft, a stern light, and a towing light above the
stern light
o (B) Two masthead lights forward, a stern light, and a towing light above the stern light
o (C) Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line
at the stern
o (D) No masthead light forward, two masthead lights aft, a stern light, and a towing light above the
stern light
 
755. (1.2.3.4-29) BOTH INTERNATIONAL & INLAND You are on watch and sight a vessel showing a
high intensity all-round flashing red light. Which vessel is required to have this light?
o (A) a seaplane when landing and taking off
o (B) an air-cushion vessel in the non-displacement mode
o (C) a submarine on the surface
(D) a WIG craft in flight near the surface
 
756. (1.2.3.4-20) BOTH INTERNATIONAL & INLAND The lights shown in illustration D058RR below
represent which of the following?
(A) a power-driven vessel of less than 50 meters in length
o (B) a sailboat
o (C) a fishing vessel at anchor
o (D) a vessel being towed
 
757. (1.2.3.5-75) BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning lights and
shapes for towing vessels?
o (A) When towing astern, a vessel will carry her identification lights at the masthead in addition to
her regular masthead light.
o (B) If a tow exceeds 200 meters in length, the towing vessel will display a black ball during
daylight.
(C) If the towing vessel is over 50 meters in length, she must carry forward and after masthead
lights.