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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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單項(xiàng)選擇題

Persistent knocking of one cylinder of a diesel engine ceases when the fuel supply to that cylinder is securedThis problem may be a result of （）

A.low loading of that cylinder
B.faulty combustion in that cylinder
C.sluggish piston ring action
D.excessive piston cooling

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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