单项选择题
A.Stationary B.Full floating C.Semi-floating D.Free rolling
The longer the ignition delay period occurs in a diesel...
单项选择题The longer the ignition delay period occurs in a diesel engine, the （）.
A.less fuel will enter the cylinder B.lower will be cylinder compression temperatures C.more complete will be fuel combustion D.more rapid will be the rise in combustion pressure
Poor combustion in a diesel engine can be caused by （）....
单项选择题Poor combustion in a diesel engine can be caused by （）.
A.high compression pressure B.low intake air temperature C.low exhaust pressure D.high scavenge air pressure
High firing pressures and a low exhaust temperature in ...
单项选择题High firing pressures and a low exhaust temperature in a diesel engine may result from （）.
A.decreased piston to cylinder head clearance B.increased exhaust system back pressure C.early fuel injection timing D.low scavenge air temperature
