Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Motor Plants & Auxiliary Boilers (Set 11)
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Question 1 of 30
With respect to diesel fuel, the ease with which a cold engine will start is dependent upon the __________.
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30 MCQs #1 With respect to diesel fuel, the ease with which a cold engine will start is dependent upon the __________. #2 The ignition quality of diesel fuel becomes LESS critical as __________. #3 The cetane number rates fuels for diesel engines according to its __________. #4 Which of the following statements is true concerning the cetane number of diesel fuel? #5 A mixture of 45% cetane and 55% alpha-methyl-naphthalene is found to have the same ignition delay as a sample of diesel oil. The sample can be described as having a/an __________. #6 For optimum results, centrifugal purification of heavy fuel oil should be accomplished with the fuel at the lowest practicable __________. #7 Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging? #8 Whether using a centrifuge or a simple filter, oil cleaning and filtration will be the most effective when the oil is at a __________. #9 The temperature of the contaminated fuel oil fed to the centrifuge shown in the illustration should be __________. Illustration MO-0012 #10 The device shown in the illustration can be automatically or manually desludged. The closing sequence at the end of the desludging cycle is initiated by opening which of the labeled components listed below? Illustration MO-0012 #11 The greatest difference between the centrifuge bowl shown in the illustration and that of a tubular bowl, with straight, vertical, interior surfaces, is that the illustrated unit __________. Illustration MO-0012 #12 Which of the following statements is accurate concerning the vibration sensing device used with the separator shown in the illustration? Illustration MO-0127 #13 All alarms occurring on the control unit of the device shown in the illustration will __________. Illustration MO-0127 #14 How may water be removed from the bowl of the separator as shown in the illustration? Illustration MO-0127 #15 Which of the following statements represents the working principle of the water transducer used with the separator shown in the illustration? Illustration MO-0127 #16 The device labeled "A", shown in the illustration, is known as the __________. Illustration MO-0112 #17 The device labeled 'C' shown in the illustration is known as the __________. Illustration MO-0112 #18 The device labeled "B", shown in the illustration is known as the __________. Illustration MO-0112 #19 The device labeled "D", as shown in the illustration, is the bowl __________. Illustration MO-0112 #20 The item indicated by the letter "F" of the device shown in the illustration is the __________. Illustration MO-0112 #21 The device labeled "H", shown in the illustration is referred to as the __________. Illustration MO-0112 #22 The force developed by the liquid within space "J" of the device shown in the illustration depends upon __________. Illustration MO-0112 #23 During normal operation, the liquid retained in space 'J' of the device shown in the illustration is __________. Illustration MO-0112 #24 The area indicated by the letter "L" of the device shown in the illustration is properly called the __________. Illustration MO-0112 #25 Which of the following statements describes "N" shown in the illustration? Illustration MO-0112 #26 Item "O" of the device shown in the illustration is the __________. Illustration MO-0112 #27 The wear liner shown in the illustration is indicated by the letter __________. Illustration MO-0112 #28 The discharge nozzle shown in the illustration, is indicated by the letter __________. Illustration MO-0112 #29 The gasket "U" shown in the illustration, is used to seal the liquid space below the __________. Illustration MO-0112 #30 The port "X" shown in the illustration allows water to enter the adjoining chamber. During what cycle of operation will this occur? Illustration MO-0112
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