Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine Safety (Supplementary) (Set 1)
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Question 1 of 30
Forcing the exhaust gases from the cylinder of an operating two cycle diesel engine with the aid of a blower is known as __________.
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30 MCQs #1 Forcing the exhaust gases from the cylinder of an operating two cycle diesel engine with the aid of a blower is known as __________. #2 After cooling of a turbocharged diesel engine will result in __________. #3 The process of scavenging a two-stroke/cycle diesel engine serves to __________. #4 Which of the following devices will increase the power output of a diesel engine without increasing its frictional load? #5 Some diesel engines are supercharged with a __________. #6 At rated engine load and RPM, the diesel engine turbocharger is powered by __________. #7 The operating speed of a turbocharger is directly dependent upon __________. #8 What statement is true concerning the charge air system of a modern turbocharged slow- speed two-stroke cycle diesel engine? #9 What statement is true concerning the charge air system of a modern turbocharged slow- speed two-stroke cycle diesel engine? #10 On a typical turbo-charged marine diesel engine, what type of blower/compressor is used within the turbocharger? #11 During the valve overlap period, the exhaust pressure of a turbocharged, four- stroke/cycle diesel engine must be less than the intake manifold pressure to ensure __________. #12 The highest pressure in any closed diesel engine freshwater cooling system is at the __________. #13 The expansion tank in a diesel engine closed freshwater cooling system is located at __________. #14 A closed freshwater cooling system is commonly used with marine diesel engines because the __________. #15 Cooling water pumps driven by direct-reversing diesel engines are usually __________. #16 Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to __________. #17 When checking zincs in a saltwater cooled heat exchanger, you should __________. #18 In a diesel engine jacket water cooler, with seawater cooling the fresh water, the __________. #19 In a diesel engine closed freshwater cooling system employing a radiator, proper water temperature can be obtained by __________. #20 The theoretical minimum compression ratio necessary to ensure compression ignition in a direct injection diesel engine is __________. #21 The thermal energy produced by an internal combustion engine is transformed into __________. #22 The load is always placed on the lower half of the main bearings in a/an __________. #23 The cubic inch (or liter) displacement of a cylinder is determined by the diameter of the piston and the __________. #24 If the compression ratio is increased on any diesel engine, __________. #25 In the illustrated diesel engine, which label points to the piston? MO-0122 #26 The diesel engine wrist pin in the illustration is indicated by the component labeled __________. MO-0122 #27 Which of the bearings listed below is most widely used for the main and connecting rod bearings of a modern high-speed diesel engine? #28 Component "U" of the diesel engine shown in the illustration is called the __________. MO-0122 #29 The diesel engine component labeled "3", shown in the illustration is called the __________. MO-0122 #30 As found in a reduction gear drive system, thrust bearings serve to __________.
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