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單項(xiàng)選擇題

A diesel engine could fail to start because of （）

A.incorrect injection timing
B.low exhaust back pressure
C.floating exhaust valves
D.excessive cranking speed

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單項(xiàng)選擇題

Excessive vibration in an operating diesel generator may be caused by （）

A.electrical overload
B.surging at governed RPM
C.loose engine mounting bolts
D.coolant leaking into the cylinder

單項(xiàng)選擇題

If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）

A.check the air filter for obstruction
B.check for an exhaust leak
C.check the exhaust temperature
D.secure the engine

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