单项选择题

If a diesel engine turned over freely but failed to start, the cause could be （）

A.water in the fuel
B.cold lube oil
C.excessive starting air pressure
D.excessive fuel pressure

相关考题

If it becomes necessary to cutout an individual cylinde...

单项选择题If it becomes necessary to cutout an individual cylinder of a large, low-speed, main propulsion diesel engine, the fuel to that cylinder should be secured and its （）

A.fuel pump should be removed and all connections blanked off
B.cylinder oil feed rate should be increased slightly above that used at normal sea speed
C.cylinder oil feed rate should be reduced
D.cylinder oil feed rate should be increased to the maximum flow capable of the metering pump

The satisfactory operation of diesel engine exhaust val...

单项选择题The satisfactory operation of diesel engine exhaust valves usually depends on（）

A.the proper back pressure
B.the cooling water temperature
C.correct timing and proper seating
D.accurate metering and the exhaust temperature

If an auxiliary diesel engine frequently stalls, the tr...

单项选择题If an auxiliary diesel engine frequently stalls, the trouble may be caused by （）

A.low exhaust back pressure
B.air in the fuel system
C.gasket blow-by or leakage
D.incorrect assembly of idler springs

船舶电气与船舶安全

If a diesel engine turned over freely but failed to start, the cause could be （）