单项选择题
A.Direct linkage between the ball-head and fuel rack B.A servomotor C.A compensating device D.Flyweights
Which term describes piston pins having bearing surface...
单项选择题Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）
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
