单项选择题
If a diesel engine fails to start，one of the likely causes is （）
A.low compression temperature
B.low ambient air pressure
C.high lube oil pump pressure
D.high fuel oil booster pump pressure
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相关考题
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单项选择题
Icreasing the exhaust valve tappet clearance of a diesel engine will result in the exhaust valve opening （）
A.later and closing earlier
B.later and closing later
C.earlier and closing earlier
D.earlier and closing later -
单项选择题
When the opening pressure of a diesel fuel injector is greater than that specified by the engine manufacturer，the （）
A.quantity of fuel injected is decreased
B.quantity of fuel injected will always be increased
C.start of injection is advanced
D.duration of injection will always be greater -
单项选择题
Broken intake valve springs on one cylinder of a diesel engine can cause the engine to （）
A.Over speed
B.fire improperly
C.lose oil pressure
D.overheatrapidly
