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
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相关考题
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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 -
单项选择题
A sudden drop in compression pressure in one cylinder of a diesel engine can be caused by（）
A.a leaking fuel injector nozzle
B.a clogged air filter
C.excessively early fuel injection
D.malfunctioning valves -
单项选择题
One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the （）
A.crankcase
B.piston
C.cylinder liner
D.crank cheek
