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單項(xiàng)選擇題

A diesel engine is turned at normal cranking speed and no ignition occursThis could be the result of （）

A.low lube oil temperature
B.low starting air temperature
C.air bubbles in the fuel oil system
D.water in the starting air system

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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

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