
Speed By Rpm Questions
B  If the pitch of the propeller is 19.4 feet, and the revolutions per day are 96,713, calculate the day's run allowing 6% positive slip.  308.6 miles  290.1 miles  266.4 miles  327.1 miles  Day's Run 
C  If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.  326.2 miles  279.2 miles  287.6 miles  311.4 miles  Day's Run 
A  If the pitch of the propeller is 20.1 feet, and the revolutions per day are 118,178, calculate the day's run allowing 6% negative slip.  414.1 miles  381.6 miles  398.4 miles  367.2 miles  Day's Run 
D  If the pitch of the propeller is 20.6 feet, and the revolutions per day are 107,341, calculate the day's run allowing 3% positive slip.  374.5 miles  389.1 miles  363.6 miles  352.7 miles  Day's Run 
B  If the pitch of the propeller is 21.2 feet, and the revolutions per day are 93,660, calculate the day's run allowing 5% positive slip.  163.3 miles  310.3 miles  342.9 miles  217.8 miles  Day's Run 
A  If the pitch of the propeller is 21.3 feet, and the revolutions per day are 126,214, calculate the day's run allowing 4% positive slip.  424.5 miles  459.9 miles  477.3 miles  442.1 miles  Day's Run 
B  If the pitch of the propeller is 21.5 feet, and the revolutions per day are 96,666, calculate the day's run allowing 9% negative slip.  341.8 miles  372.6 miles  357.9 miles  311.1 miles  Day's Run 
C  If the pitch of the propeller is 22.4 feet, and the revolutions per day are 103,690, calculate the day's run allowing 9% positive slip.  321.7 miles  416.4 miles  347.6 miles  382.0 miles  Day's Run 
D  If the pitch of the propeller is 23.2 feet, and the revolutions per day are 94,910, calculate the day's run allowing 11% negative slip.  362.3 miles  322.3 miles  382.0 miles  402.0 miles  Day's Run 
D  If the pitch of the propeller is 24.8 feet, and the revolutions per day are 93,373, calculate the day's run allowing 11% positive slip.  380.9 miles  307.3 miles  422.8 miles  339.0 miles  Day's Run 
A  If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.  351.6 miles  390.0 miles  378.1 miles  404.6 miles  Day's Run 
C  If the pitch of the propeller is 26.3 feet, and the revolutions per day are 87,421, calculate the day's run allowing 7% negative slip.  351.7 miles  419.3 miles  404.6 miles  378.1 miles  Day's Run 
B  If the pitch of the propeller is 26.7 feet, and the revolutions per day are 131,717, calculate the day's run allowing 4% negative slip.  649.4 miles  601.6 miles  555.2 miles  578.4 miles  Day's Run 
D  The pitch of the propeller on your vessel is 19'09". You estimate the slip at 3%. If you averaged 82 RPM for the day's run, how many miles did you steam?  370.8  373.6  393.7  395.3  Day's Run 
A  The propellers on your twin screw vessel have a pitch of 16'04". What is the distance in a day's run if the average RPM is 94, and you estimate 7% positive slip?  338.3 miles  676.6 miles  778.6 miles  389.3 miles  Day's Run 
C  If the speed necessary for reaching port at a designated time is 12.6 knots and the pitch of the propeller is 13.6 feet, how many revolutions per minute will the shaft have to turn, assuming no slip?  85  81  94  90  Rpm 
B  If the speed necessary for reaching port at a designated time is 15.7 knots and the pitch of the propeller is 23.4 feet, how many revolutions per minute will the shaft have to turn, assuming a 6% negative slip?  76  64  68  72  Rpm 
A  If the speed necessary for reaching port at a designated time is 16.4 knots and the pitch of the propeller is 23.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 6% positive slip?  74  90  82  66  Rpm 
B  If the speed necessary for reaching port at a designated time is 16.8 knots and the pitch of the propeller is 22.3 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?  66  73  61  80  Rpm 
D  If the speed necessary for reaching port at a designated time is 17.4 knots and the pitch of the propeller is 25.6 feet, how many revolutions per minute will the shaft have to turn, assuming a 3% positive slip?  67  63  75  71  Rpm 
A  If the speed necessary for reaching port at a designated time is 17.8 knots and the pitch of the propeller is 24.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 7% positive slip?  79  71  75  67  Rpm 
D  If the speed necessary for reaching port at a designated time is 18.2 knots and the pitch of the propeller is 23.9 feet, how many revolutions per minute will the shaft have to turn, assuming a 2% negative slip?  70  79  73  76  Rpm 
A  If the speed necessary for reaching port at a designated time is 18.5 knots and the pitch of the propeller is 21.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?  83  90  97  114  Rpm 
C  If the speed necessary for reaching port at a designated time is 18.6 knots, and the pitch of the propeller is 26.2 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?  78  75  69  72  Rpm 
D  If the speed necessary for reaching port at a designated time is 19.2 knots and the pitch of the propeller is 22.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% positive slip?  96  82  103  89  Rpm 
B  If the speed necessary for reaching port at a designated time is 19.6 knots and the pitch of the propeller is 24.6 feet, how many revolutions per minute will the shaft have to turn, assuming a 5% positive slip?  106  85  76  97  Rpm 
D  If the speed necessary for reaching port at a designated time is 20.7 knots and the pitch of the propeller is 23.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 3% negative slip?  98  79  74  86  Rpm 
A  If the speed necessary for reaching port at a designated time is 21.6 knots and the pitch of the propeller is 22.5 feet, how many revolutions per minute will the shaft have to turn, assuming a 2% positive slip?  99  87  95  81  Rpm 
B  If the speed necessary for reaching port at a designated time is 23.7 knots and the pitch of the propeller is 20.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 7% negative slip?  124  108  112  116  Rpm 
A  The speed necessary to reach port at a designated time is 18.7 knots. The propeller pitch is 24'03", and you estimate 3% positive slip. How many RPM's will the shaft have to turn?  81 RPM  98 RPM  104 RPM  87 RPM  Rpm 
D  The speed of advance necessary to arrive in port at a designated time is 15.8 knots. The pitch of the propeller is 20.75 feet. You estimate 5% positive slip. How many RPM must you turn to make the necessary speed?  76.2  73.5  79.9  81.2  Rpm 
B  You must average 16.25 knots to reach port at a designated time. Your propeller has a pitch of 21'08", and you estimate 4% negative slip. How many RPM's must you average to arrive on time?  77 RPM  73 RPM  82 RPM  88 RPM  Rpm 
B  From 1020, 3 March, to 1845, 5 March, your vessel steamed an observed distance of 845.6 miles. The average RPM was 78, and the pitch of the propeller was 20'03". What was the slip?  4 (%)  4 (%)  8 (%)  8 (%)  Slip 
D  The observed distance for a day's run was 302.7 miles. The propeller had a pitch of 20'06", and the average RPM was 67. What was the slip?  0.7 (%)  0.7 (%)  7 (%)  7 (%)  Slip 
C  The observed noon to noon run for a 24 hour period is 489 miles. The average RPM for the day was 95. The pitch of the wheel is 22.5 feet. What is the slip of the wheel?  3.7 (%)  3.2 (%)  3.4 (%)  3.9 (%)  Slip 
A  The propeller of a vessel has a pitch of 19.0 feet. If the vessel traveled 183.5 miles (observed distance) in 24 hours at an average of 44 RPM, what was the slip?  7.4 (%)  7.4 (%)  11.6 (%)  11.6 (%)  Slip 
D  The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?  1.9 (%)  4.7 (%)  4.7 (%)  1.9 (%)  Slip 
A  The propeller on a vessel has a diameter of 19.9 feet and a pitch of 21.6 feet. What would be the apparent slip if the vessel cruised 395 miles in a 23 hour day (observed distance) at an average RPM of 78?  3.2 (%)  12 (%)  3.2 (%)  12 (%)  Slip 
D  The propeller on a vessel has a diameter of 20.2 feet and a pitch of 19.0 feet. What would be the apparent slip if the vessel cruised 367 miles in a 24 hour day (observed distance) at an average RPM of 84?  5.2 (%)  5.2 (%)  2.9 (%)  2.9 (%)  Slip 
A  The propeller on a vessel has a diameter of 20.6 feet and a pitch of 23.4 feet. What would be the apparent slip if the vessel cruised 538 miles in a 24 hour day (observed distance) at an average RPM of 87?  11.6 (%)  11.6 (%)  10.3 (%)  10.3 (%)  Slip 
A  The propeller on a vessel has a diameter of 20.9 feet and a pitch of 19.6 feet. What would be the apparent slip if the vessel cruised 447 miles in a 23 hour day (observed distance) at an average RPM of 108?  7 (%)  5.6 (%)  7 (%)  5.6 (%)  Slip 
D  The propeller on a vessel has a diameter of 21.2 feet and a pitch of 20.0 feet. What would be the apparent slip if the vessel cruised 391 miles in a 24 hour day (observed distance) at an average RPM of 88?  6.2 (%)  11.5 (%)  11.5 (%)  6.2 (%)  Slip 
A  The propeller on a vessel has a diameter of 21.5 feet and a pitch of 24.5 feet. What would be the apparent slip if the vessel cruised 458 miles in a 23 hour day (observed distance) at an average RPM of 78?  5.6 (%)  12.3 (%)  12.3 (%)  5.6 (%)  Slip 
A  The propeller on a vessel has a diameter of 22.8 feet and a pitch of 19.3 feet. What would be the apparent slip if the vessel cruised 287 miles in a 24 hour day (observed distance) at an average RPM of 67?  6.3 (%)  6.3 (%)  24 (%)  24 (%)  Slip 
C  The propeller on a vessel has a diameter of 23.7 feet and a pitch of 24.8 feet. What would be the apparent slip if the vessel cruised 442 miles in a 23 hour day (observed distance) at an average RPM of 89?  7.6 (%)  11.8 (%)  11.8 (%)  7.6 (%)  Slip 
A  The propeller on a vessel has a diameter of 24.0 feet and a pitch of 21.3 feet. What would be the slip if the vessel cruised 510 miles in a 24 hour day (observed distance) at an average RPM of 86?  17.5 (%)  17.5 (%)  12.2 (%)  12.2 (%)  Slip 
D  The propeller on a vessel has a diameter of 24.6 feet and a pitch of 26.1 feet. What would be the apparent slip if the vessel cruised 462 miles in a 24 hour day (observed distance) at an average RPM of 72?  2.7 (%)  3.8 (%)  2.7 (%)  3.8 (%)  Slip 
C  The propeller on a vessel has a diameter of 25.3 feet and a pitch of 23.2 feet. What would be the apparent slip if the vessel cruised 515 miles in a 23 hour day (observed distance) at an average RPM of 93?  3.6 (%)  5.2 (%)  5.2 (%)  3.6 (%)  Slip 
B  The propeller on your vessel has a pitch of 18'09". If the observed distance for a day's run was 399.4 miles and the average RPM was 86, which statement is TRUE?  The day's run by engine RPM was 404.5 miles.  The slip is a negative 5%.  The slip is a positive 5%.  The day's run by engine RPM was 390.6 miles.  Slip 
B  The propeller on your vessel has a pitch of 22.8 feet. From 0800, 18 April, to 1020, 19 April, you steamed an observed distance of 403.6 miles. If your average RPM was 74, what was the slip?  8 (%)  8 (%)  7 (%)  7 (%)  Slip 
B  Your vessel's propeller has a pitch of 22'06". From 0530, 19 March, to 1930, 20 March, the average RPM was 82. The distance run by observation was 721.5 miles. What was the slip?  4 (%)  4 (%)  7 (%)  7 (%)  Slip 
A  You are turning 100 RPM, with a propeller pitch of 25 feet, and an estimated slip of 5%. What is the speed of advance?  25.9 knots  22.3 knots  24.7 knots  23.5 knots  Speed of Advance 
B  You are turning 100 RPM, with propeller pitch of 25 feet, and an estimated negative slip of 5%. What is the speed of advance?  26.3 knots  25.9 knots  23.4 knots  24.7 knots  Speed of Advance 
A  You are turning 105 RPM, with a propeller pitch of 17 feet, and an estimated slip of 1%. What is the speed of advance?  17.8 knots  15.3 knots  16.9 knots  17.4 knots  Speed of Advance 
B  You are turning 68 RPM, with a propeller pitch of 18 feet, and an estimated slip of +2%. What is the speed of advance?  11.5 knots  11.8 knots  12.3 knots  10.7 knots  Speed of Advance 
C  You are turning 78 RPM, with a propeller pitch of 21 feet, and an estimated slip of 7%. What is the speed of advance?  15.7 knots  17.8 knots  17.3 knots  14.9 knots  Speed of Advance 
B  You are turning 82 RPM, with a propeller pitch of 23 feet, and an estimated slip of +6%. What is the speed of advance?  19.7 knots  17.5 knots  18.4 knots  17.9 knots  Speed of Advance 
D  You are turning 84 RPM, with a propeller pitch of 22 feet, and an estimated slip of 0%. What is the speed of advance?  17.7 knots  18.0 knots  16.8 knots  18.2 knots  Speed of Advance 
D  You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?  16.4 knots  14.7 knots  17.1 knots  15.5 knots  Speed of Advance 
A  You are turning 88 RPM, with a propeller pitch of 19 feet, and an estimated slip of 0%. What is the speed of advance?  16.5 knots  18.1 knots  16.9 knots  17.3 knots  Speed of Advance 
C  You are turning 90 RPM, with a propeller pitch of 24 feet, and an estimated slip of 3%. What is the speed of advance?  19.2 knots  20.6 knots  21.9 knots  18.8 knots  Speed of Advance 
D  You are turning 93 RPM, with a propeller pitch of 25 feet, and an estimated slip of 0%. What is the speed of advance?  21.9 knots  22.4 knots  20.2 knots  22.9 knots  Speed of Advance 