單項(xiàng)選擇題As for a diesel engine, lack of combustion air may be due to ().

A.fouling turbine
B.fuel pump faults
C.lubrication failure
D.excessive cooling


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1.單項(xiàng)選擇題As a heat engine,() energy is the source of power by which the diesel engine can be operated.

A.electric
B.heat
C.mechanical
D.exhaust

2.單項(xiàng)選擇題An overspeed safety device is usually fitted to a generator engine for () in the event of overspeed.

A.cutting power off the engine
B.increasing the fuel pump setting
C.braking the crankshaft
D.stabilizing the ship speed

4.單項(xiàng)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

5.單項(xiàng)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