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單項選擇題

Among the main propulsion units on board the ship with the same capacity, the lightest one is（）.

A.steam engine
B.steam turbine
C.gas turbine
D.diesel engine

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單項選擇題

The rotating range of the low speed diesel engine is usually lower than （）.

A.100 rpm
B.200 rpm
C.300 rpm
D.500 rpm

單項選擇題

Before using or operating any equipment, you should first （） its manual thoroughly and understand its contents（）.

A.read/sufficient
B.consult/sufficiently
C.read/sufficiently
D.consult/sufficient

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