單項(xiàng)選擇題

One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to （）

A.increase scavenge air pressure
B.reduce fuel booster pump pressure
C.adjust the fuel rack
D.retard fuel injector timing

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單項(xiàng)選擇題

What is the best way of stopping an over-speeding diesel engine?（）

A.Disconnect the battery cables from the starting motor
B.Drain the hydraulic fluid from the governor sump
C.Block the flow of cooling air to the radiator
D.Secure the fuel supply and block the air intake

單項(xiàng)選擇題

The efficient burning of fuel in a diesel engine is dependent upon the （）

A.temperature of compression
B.atomization of the fuel
C.penetration of the fuel
D.all of the above

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