题目内容
（请给出正确答案）
A．worn cylinder
B．broken piston rings
C．any of A and B
D．none of the above
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（由简答题聘请的专业题库老师提供的解答）
更多“Low compression of diesel engine may result from（）”相关的问题
A.a worn cylinder
B.broken piston rings
C.any of A and B
D.none of the above
Low compression pressure in a diesel engine may be the result of ________.
A.insufficient fuel supply due to fuel pump valves sticking or leaking
B.excessive mechanical clearance between the piston crown and cylinder head
C.excessively worn fuel pump plunger
D.excessive exhaust back pressure
The diesel engine is also called compression ignition engine because______.
A compression stroke is one of the four-strokes of a diesel engine.
B the diesel engine is ignited by the heat of compression not by spark .
C the diesel engine has a very high compression ratio.
D Both A and B
Low compression pressure in a diesel engine can be caused by_____________.
A.improperly seating intake valves
B.leaking cylinder liner seal rings
C.late fuel injection timing
D.carbon deposits on the piston
Low compression pressure in a diesel engine is caused by___________.
A.low water in the expansion tank
B.improperly seated valves
C.low fuel oil pressure
D.worn or broken cylinder liner sealing rings
Low compression in a diesel engine can be caused by ________.
A.clogged coolant passages
B.a leaking cylinder head gasket
C.low fuel oil pressure
D.worn or broken cylinder liner sealing rings
Worn main bearings in a diesel engine can result in ______________.
A.decreased compression pressure
B.increased lube oil pressure
C.lower lube oil temperature
D.excessive leakage past the piston rings
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
Late fuel oil injection in a diesel engine can result in ___.
A.fuel knock
B.increased power
C.low compression pressure
D.high exhaust temperature
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