Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR

USCG Engine Safety (Supplementary) (Set 10)

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Question 1 of 30

The component labeled "A" on the engine reversing device shown in the illustration, performs its function by transmitting _______. MO-0125

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30 MCQs

#1 The component labeled "A" on the engine reversing device shown in the illustration, performs its function by transmitting _______. MO-0125 #2 You are the Chief Engineer on a Ro/Ro vessel powered by a MAN two stroke, direct reversing, slow speed diesel engine. While maneuvering into New York with the main engine in Bridge control status you receive low pressure alarms on both main air receivers. Both ship's main air compressors are operational and running at the time of the alarms. What should you do? #3 What type of engine lubrication oil filter system sends filtered oil directly to the high pressure supply gallery? #4 In a by-pass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the __________. #5 The device shown in the illustration is classified as a/an __________. MO-0008 #6 The device shown in the illustration is a __________. MO-0008 #7 Which of the following problems could develop due to the accumulation of oil vapors in the crankcase of a diesel engine? #8 The device shown in figure "A" of the illustration is used to __________. MO-0042 #9 The illustrated device is used to __________. MO-0050 #10 The component labeled as part #20 in the illustration is used to __________. MO-0050 #11 The adverse effects of burning high sulfur fuel can be compensated for by using a cylinder oil having sufficient __________. #12 Which of the following test indicators should be considered the most significant factor in determining as to whether or not a diesel generators lube oil should be drained and renewed? #13 Both crosshead type and trunk type lubricating oil are received on board a vessel. These two oils cannot be interchanged due to which of the following reasons? #14 The time between injection and ignition of the fuel is known as __________. #15 For a given fuel, a change in the compression ratio will affect the ignition lag by which of the listed means? #16 Which statement about diesel engine combustion is true? #17 As Chief Engineer of a slow speed diesel propelled vessel operating with constant slip, when considering the effect on the fuel consumption in barrels per mile of a planned increase in operating RPM you utilize which of the following? #18 You are on board a vessel with a slow speed crosshead type engine. The fuel just received has a significantly lower sulfur content then the previous bunkers. Which of the following would be a concern due to the reduced sulfur content? #19 In the device shown in the illustration, the component lettered "A" is the __________. MO-0012 #20 Which of the following precautions should be taken prior to starting the separator shown in the illustration? MO-0127 #21 Which of the following statements is accurate concerning the vibration sensing device used with the separator shown in the illustration? Illustration MO-0127 #22 How may water be removed from the bowl of the separator as shown in the illustration? Illustration MO-0127 #23 Heavy fuel oil used in the system shown in the illustration, will have the lowest viscosity __________. MO-0058 #24 The purpose of the interlocked three-way valve shown in the illustration is to __________. Illustration MO-0058 #25 If the separating temperature is to remain constant, what is the relationship between the specific gravity of the oil and the required size of the regulating ring? Illustration MO-0113 #26 From the graph shown in the illustration, determine the size of the regulating ring required for the proper operation of the fuel oil centrifuge if the fuel oil specific gravity is 0.9 kg/dm3 at 68°F, and the separating temperature is 158°F. Illustration MO-0113 #27 Using the graph shown in the illustration, the oil being separated has a specific gravity of .87 kg/dm3 at 72.5°C. What will be the specific gravity if the temperature is lowered to 40°C? Illustration MO-0113 #28 From the graph shown in the illustration, if the separating temperature required is to be 167°F, and the specific gravity of the oil is .98 kg/dm3 at 59°F, what size regulating ring is required? Illustration MO-0113 #29 When tightening the lock ring "G" of the device shown in the illustration, two events are simultaneously accomplished. Which of the following statements represents these events? Illustration MO-0112 #30 Which of the following conditions would be the most probable cause for the 'low oil temperature after preheater' LED indicators, as shown in the illustration, to be illuminated? MO-0127

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