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單項(xiàng)選擇題

Engine coolant accumulating in the diesel engine lubricating oil can result from a （）

A.low oil pressure
B.high coolant pressure
C.leaking fuel injector
D.cracked cylinder head or liner

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單項(xiàng)選擇題

The device used to limit engine torque at various engine speeds is called a （）

A.speed limiting governor
B.variable speed governor
C.constant speed governor
D.load limiting governor

單項(xiàng)選擇題

A fuel leak occurs in the high pressure fuel piping between the injection pump and fuel nozzleThis requires immediate repair because of the （）

A.high cost of fuel
B.serious fire hazard
C.possibility of pollution
D.poor combustion which will occur in that cylinder

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