单项选择题
If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be （）
A.excessive compression pressure
B.air in the fuel lines
C.high fuel pressure
D.excessive load
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相关考题
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单项选择题
One of the purposes for water cooling the exhaust manifold in marine diesel engine is to （）
A.reduce lube oil temperature
B.raise exhaust temperature reduce
C.excessive heating of engine room
D.reduce load on cooling water pump -
单项选择题
A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（）
A.gap
B.side
C.back
D.radial -
单项选择题
An auxiliary diesel engine may fail to start due to（）
A.low exhaust back pressure
B.high lube oil temperature
C.insufficient cranking speed
D.excessive fuel atomization
