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單項選擇題

An interlock in the remote operating valve line stops the valve （） when the engine turning gear is engaged.

A.to open
B.opening
C.open
D.opened

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單項選擇題

An increase in load on a diesel engine results in （） of speed of the crankshaft.

A.a reduction
B.an increase
C.an outing
D.a downwards

單項選擇題

An electrically driven automatically operating auxiliary blower is provided for slow speed and （） of a low speed diesel engine.

A.manoeuvring operations
B.bad combustion
C.cooling
D.mooring trial