单项选择题

Which of the listed failures, occurring in an automated diesel generator system, should cause an audible alarm at the engine room control station?（）

A.Low cooling water outlet temperature
B.High lube oil pressure
C.Low lube oil temperature
D.Low starting air pressure

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单项选择题

A diesel engine may be hard to start if the （）

A.air intake is restricted
B.engine is cranked too fast
C.vibration dampener is faulty
D.exhaust back pressure is low

单项选择题

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

单项选择题

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