A、A.worn connecting rod bearings
B、B.worn engine cylinder liners
C、C.high cylinder firing pressure
D、D.stuck spring-loaded manhole covers
更多“An increase in crankcase pressure generally indicates（）”相关的问题
A、An increase in compression ratio will increase the ignition lag B、An increase in compression ratio will decrease the ignition lag C、A decrease in compression ratio will decrease the ignition lag D、A decrease in ignition lag will increase the compression ratio
A、decrease in maximum cylinder pressure B、increase in ignition lag C、decrease in fuel consumption per horsepower-hour D、decrease in exhaust manifold pressure
A、noise and vibration B、an increase in discharge pressure C、an increase in suction pressure D、lifting of the relief valve
A、A.A decrease in the speed results in a decrease in steering response and maneuverability B、B.An increase in speed results in the stern sucking down lower than the Bow C、C.An increase in speed results in the vessel rising on an even plane D、D.A decrease in speed results in the vessel sucking down on an even plane
A、an increased flash point B、higher lube oil pressures C、an increased viscosity D、lower lube oil pressures
A、a spindle lubricator B、an oil jet C、internal splashing D、drilled passages in the crankshaft
A、A large change of viscosity occurs with a minor change in temperature B、No change in viscosity occurs with any change in temperature C、Very little change in viscosity occurs with a significant change in temperature D、The viscosity of the oil increases with an increase in temperature
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