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單項(xiàng)選擇題

After changing out the fuel filters the diesel engine fails to restart, the most probable cause for this condition is a/an（）.

A.low compression
B.air-bound fuel system
C.improper spark
D.change in viscosity

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單項(xiàng)選擇題

If a diesel engine starts firing, but is unable to come up normal speed, either without load or even under a small load, the cause may be （）

A.insufficient fuel supply
B.faulty governor
C.high exhaust back pressure
D.all of the above may cause this problem

單項(xiàng)選擇題

Air in the fuel can cause（）

A.high lube oil temperature
B.blue smoke
C.the engine to stop
D.piston seizure

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