單項選擇題

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

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單項選擇題

（）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

單項選擇題

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

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