单项选择题
Typical marine propulsion plants include（） directly coupled to the vessel’s single large-diameter, fixed-pitch propeller.
A.a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engine
B.a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engine
C.two medium-speed, turbocharged, four-stroke diesel engines
D.a variable-speed AC generator
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相关考题
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单项选择题
Propulsion of the vast majority of contemporary merchant ships (especially containerships and VLCCs) utilizes（） as prime mover.
A.gas turbine
B.diesel engine
C.steam engine
D.gasoline engine -
单项选择题
（）are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.
A.Slow speed diesel engines
B.Medium-speed diesel engines
C.Steam engines
D.Gasoline engines -
单项选择题
During check on top clearance in main bearings, turn the crankthrow for the relevant cylinder unit to （） and stop the lube oil circulating pump.
A.port side
B.starboard side
C.BDC position
D.DC position
