Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Motor Plants & Auxiliary Boilers (Set 30)

30:00

|

Question 1 of 30

Question Navigator

Correct Incorrect Pending Starred

Question 1 of 30

Which of the following statements is correct regarding a turbocharged four-stroke cycle diesel-generator?

Browse Questions in Set 30

30 MCQs

#1 Which of the following statements is correct regarding a turbocharged four-stroke cycle diesel-generator? #2 If governor Item No.19 in the illustration were to break on a diesel engine operating under full load, the engine RPM will __________. Illustration MO-0095 #3 In the illustrated auxiliary diesel engine governor, decreasing the distance between piece No.6 and piece No.10 will affect the engine by __________. Illustration MO-0094 #4 What is the best way of stopping an overspeeding diesel engine? #5 An auxiliary diesel-generator continues to run after you try to shut down. Your next course of action should be to _________. #6 When installing the bearing cap on the device shown in the illustration, which of the precautions listed must be observed? Illustration MO-0121 #7 A diesel-generator governor is hunting. After changing the oil, the governor is flushed and the compensation needle valve is adjusted, but the hunting persists. You should NOW __________. #8 Sacrificial zinc anodes are used on the salt water side of diesel engine heat exchangers to __________. #9 Which of the following statements describes what will occur if the annular spaces, indicated by the letter "K" of the device shown in the illustration, became restricted? Illustration MO-0112 #10 As shown in the illustration, which of the following conditions would be responsible for a "low-pressure in oil outlet" alarm to be indicated? Illustration MO-0127 #11 The thrust bearing shown in the illustration has over eight years of ahead running time. Measurements show "i1" is 4 mm and "i2" is 1 mm. Which of the following conditions is indicated and what steps should be taken, if any? Illustration MO-0121 #12 A diesel engine operates erratically, overspeeds, and fails to restart when cranked at normal speed. Which of the following problems is the most likely cause for the engine failing to restart? #13 Antifreeze solutions containing ethylene glycol should not be mixed with corrosion protection oils, as the resultant mixture __________. #14 The power output of a turbocharged diesel engine will drop if the cooling water flow through the aftercooler is interrupted because the __________. #15 The instrument shown in the illustration would be used on a diesel engine to __________. Illustration MO-0031 #16 Excessive wear at part No.11, shown in the illustration would result in __________. Illustration MO-0027 #17 An immediate repair is required if a leak occurs in the high-pressure fuel piping between the injection pump and fuel nozzle because of the __________. #18 Which construction detail is apparent in the connecting rod and piston assembly shown in the illustration? Illustration MO-0011 #19 Which of the following statements is correct concerning the connecting rod and piston assembly shown in the illustration? Illustration MO-0011 #20 Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift? #21 Which of the following procedures should be carried out to permit the continued operation of a crosshead engine with a leaky aftercooler? #22 When inspecting pistons, liners, and rings of a large two-stroke cycle diesel engine through the cylinder ports, a wet piston crown would indicate a __________. #23 Telescopic pipes which are attached to water cooled pistons of large, slow-speed, main propulsion diesel engines are designed to ________. #24 Which of the listed design features is most common with a two-stroke cycle, low-speed main propulsion diesel engine? #25 The piston rod scraper box incorporated in a two-stroke cycle, crosshead diesel engine serves to __________. #26 There are two glands provided where the piston rod exits the cylinder shown in the illustration. The purpose of the top gland is to __________. Illustration MO-0083 #27 In a four-stroke cycle diesel engine, badly worn intake valve guides can cause excessive __________. #28 The part labeled "G", as shown in the illustration, is a __________. Illustration MO-0040 #29 In the auxiliary diesel engine, shown in the illustration, the __________. Illustration MO-0006 #30 The cylinders labeled "B" and "C" in the illustration are used to __________. Illustration MO-0125

Question Discussion & Notes

0

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Loading mariner discussions...