A、cylinder compression pressure may not be high enough
B、cylinder compression temperature may be too high
C、fuel oil injection pressure may not be high enough
D、scavenge and purge process is incomplete
更多“If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.”相关的问题
A、A.excessive fuel pressure B、B.high lube oil viscosity C、C.inadequate fuel injection D、D.excessive starting air pressure
A、The amount of fuel injected will be increased B、The start of injection will be retarded C、The nozzle will permit fuel to dribble D、The spray pattern will be distorted
A、deliver proper fuel quantity to the injection nozzle B、provide rapid fuel injection cutoff C、control fuel quantity entering the pump body D、control fuel pressure delivered to the combustion chamber
A、fuel line connections to cylinder injection valves B、gasket surfaces of the fuel oil filters C、discharge fitting of the fuel injector pumps D、suction side of the fuel oil tran
A、A.assist in a quick cutoff of fuel injection B、B.allow oil backflow from the injector to the helix C、C.reduce fuel oil pressure between injection strokes D、D.meter the quantity of fuel delivered
A、Quantity of fuel injected tends to be decreased B、Quantity of fuel injected will always be increased C、Start of injection tends to be advanced D、Duration of injection will always greater
A、overheated injection pumps B、water condensed in the cylinders C、fuel dilution of the lube oil D、air in the fuel system
A、Fuel injection timing will change B、Nozzle operation will be unaffected C、Fuel will leak into the drain line D、Fuel will not be delivered
客服
TOP
查看正确答案
