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

USCG Motor Plants & Auxiliary Boilers (Set 1)

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Question 1 of 30

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Question 1 of 30

The process of supplying a diesel engine cylinder with air at a pressure greater than atmospheric is called __________.

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30 MCQs

#1 The process of supplying a diesel engine cylinder with air at a pressure greater than atmospheric is called __________. #2 Which of the listed types of superchargers will NOT have a volumetric capacity proportional to engine speed? #3 The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________. #4 Why will a turbocharged diesel engine produce black smoke if excessive additional load is applied too quickly? #5 The device shown in the illustration is commonly used to __________. Illustration MO-0080 #6 The power consumed during the scavenging process of a diesel engine is known as the __________. #7 Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to __________. #8 Ethylene glycol, when used as a coolant in a closed cooling system for a diesel engine, is more advantageous than untreated raw water because it __________. #9 The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and __________. #10 A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water __________. #11 What would be considered a normal temperature increase between the inlet and outlet jacket cooling water of a medium or high-speed diesel engine operating at normal load? #12 An electric heater built into some smaller diesel engines is used to __________. #13 The temperature at which an adjustable bellows type thermostatic valve operates is determined by __________. #14 Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine? #15 In the starting process of a diesel engine, the main object is to attain the compression conditions sufficient to __________. #16 Diesel engines are classified as reciprocating internal combustion engines because they __________. #17 The highest pressure in a diesel engine cylinder normally occurs __________. #18 Which of the terms listed below represents the operational speed at which excessive engine vibration is created? #19 Which of the following is an example of a solid bearing? #20 The proper location for journal bearing oil grooves is __________. #21 The linear motion of a diesel engine piston is converted into the rotary motion required to drive gears, propeller shafts, and generators by the __________. #22 Connecting rods in a diesel engine are used to connect the __________. #23 Before starting a diesel engine, you should always __________. #24 Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started? #25 Before starting a diesel engine that has an engine driven lube oil pump, you should __________. #26 When attempting to restart a warm high-speed engine, which of the following reactions can you expect? #27 A normally operating diesel engine is shutdown by __________. #28 Babbitt is a metal alloy commonly used for lining __________. #29 Which of the following methods is used to securely fasten the Babbitt lining of a reduction gear bearing to its shell? #30 One advantage of electromagnetic slip couplings is __________.

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