單項(xiàng)選擇題

If a diesel engine rotates slowly when cranked, but does not fire, the（）

A.fuel control rack had admitted excessive fuel
B.engine speed does not match the fuel rack setting
C.engine has failed to reach its firing speed
D.starter pinion and ring gear contact is not correct

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單項(xiàng)選擇題

When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）

A.an obstruction in an cylinder
B.water accumulation in some engine cylinders
C.low starting air pressure
D.low scavenge air pressure

單項(xiàng)選擇題

Black smoke exhausting from a diesel engine indicates（）

A.proper fuel injection
B.water in the fuel
C.incomplete combustion
D.burning of lube oil

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If a diesel engine rotates slowly when cranked, but does not fire, the（）

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When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）

Black smoke exhausting from a diesel engine indicates（）