Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine Safety (Supplementary) (Set 2)
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Question 1 of 30
Which of the following types of bearings are used as line shaft bearings?
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30 MCQs #1 Which of the following types of bearings are used as line shaft bearings? #2 Hydraulic couplings will transmit torque equal to the input torque by means of energy changes in a rotating vortex of liquid. For the vortices to form there must be __________. #3 The bearing shown in the illustration is designed to carry thrust when applied __________. Illustration MO-0001 #4 Kingsbury thrust bearings are lubricated by __________. #5 On a large diesel engine installation, crankshaft axial alignment is maintained by the __________. #6 Fuel is admitted to a diesel engine cylinder through the __________. #7 Fuel injection systems are designed to primarily meter fuel, atomize fuel, and __________. #8 Movement of the pump control rack in a fuel injection system using individual plunger- type pumps __________. #9 The illustrated device is operated directly by __________. MO-0041 #10 Which of the fuel injection systems listed uses a spring loaded differential spray needle valve and an individual pump for each cylinder? #11 Valve '1', as shown in the illustration when, should be operated when __________. Illustration MO-0077 #12 What is the function of the after coolers installed in the diesel engine air intake system? #13 The section of the turbocharger which would be connected to the after cooler inlet is labeled __________. MO-0080 #14 Compared to a naturally aspirated diesel engine, a supercharged diesel engine has __________. #15 Lube oil cannot be efficiently filtered i f it¶s __________. #16 Where would a coarse screen wire-mesh strainer normally be found on a diesel engine lubrication system? #17 The lube oil strainer shown in the illustration is used on the reduction gear of a mid-size diesel engine. The strainer elements consist of __________. MO-0057 #18 Heat exchangers are most commonly found in a small auxiliary diesel engine __________. #19 Which of the following methods is normally used to lubricate bearings in a small high- speed diesel engine? #20 In an auxiliary diesel engine "by-pass type" lubricating oil system, the main lube oil pump forces __________. #21 Lubrication for the main reduction gears used with diesel engines is usually supplied by __________. #22 Starting air check valves are held firmly on their seats by __________. #23 A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine __________. #24 For a diesel engine, approximately how long can an electric starter motor be operated continuously before damage may begin to occur due to overheating? #25 Air motors used for starting some auxiliary diesel engines are generally the type known as a/an __________. #26 A Bendix drive starting motor disengages the drive gear from the flywheel by __________. #27 The pinion of an auxiliary diesel electric starting motor normally engages the flywheel ring gear by means of a/an __________. #28 During the starting of a diesel engine, compression gases are prevented from backing into the air starting system, shown in the illustration, by the __________. MO-0046 #29 When an air started, four-stroke/cycle diesel engine is being cranked over; the starting air is admitted to each cylinder during the beginning of its __________. #30 Auxiliary boilers are divided into several classifications, one of which is __________.
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