单项选择题
A.decreased compression pressure B.increased lube oil pressure C.lower lube oil temperature D.excessive leakage past the piston rings
When monitoring diesel engine performance, the most use...
单项选择题When monitoring diesel engine performance, the most useful instrument to use is the （）
A.dwell-tachometer B.exhaust gas pyrometer C.fuel flow rate mete D.exhaust gas analyzer
Low compression in a diesel engine could be caused by（）...
单项选择题Low compression in a diesel engine could be caused by（）
A.worn or broken cylinder liner sealing rings B.high cooling water temperature C.worn or broken piston rings D.low fuel oil pressure
The most common instrument used to measure diesel engin...
单项选择题The most common instrument used to measure diesel engine exhaust pressure is the （）
A.pyrometer B.bourdon gauge C.pneumercator D.manometer
