单项选择题
A.increase scavenge air pressure B.reduce fuel booster pump pressure C.adjust the fuel rack D.retard fuel injector timing
What is the best way of stopping an over-speeding diese...
单项选择题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
The efficient burning of fuel in a diesel engine is dep...
单项选择题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
Persistent knocking of one cylinder of a diesel engine ...
单项选择题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
