單項選擇題

All marine low-speed diesels are of what design?（）

A.Four-stroke
B.Two-stroke
C.Electronic ignition
D.Forced exhaust

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單項選擇題

All diesel engines are classified as（）.

A.four cycle
B.compression ignition
C.vacuum ignition
D.external combustion

單項選擇題

A VLCC (100，000 DWT+) with a 30，000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a（）.

A.bigger propeller
B.smaller power weight ratio
C.smaller propeller
D.larger power weight ratio