单项选择题
A diesel engine could fail to start because of （）
A.incorrect injection timing
B.low exhaust back pressure
C.floating exhaust valves
D.excessive cranking speed
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相关考题
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单项选择题
Excessive vibration in an operating diesel generator may be caused by （）
A.electrical overload
B.surging at governed RPM
C.loose engine mounting bolts
D.coolant leaking into the cylinder -
单项选择题
If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）
A.check the air filter for obstruction
B.check for an exhaust leak
C.check the exhaust temperature
D.secure the engine -
单项选择题
Clogged or partially obstructed exhaust ports on a diesel engine can cause（）
A.over-speeding of the engine
B.failure of the engine to shut down
C.no effect of engine mounting bolts
D.high exhaust temperatures
