單項(xiàng)選擇題

When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）

A.increase the starting air pressure
B.use a higher than normal cranking speed
C.increase the fuel injection pressure
D.use a fuel having a lower ignition temperature

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單項(xiàng)選擇題

Water accumulation in the cylinder of a secured engine is an indication that the （）

A.soft water pump was not secured along with the engine
B.jacket water thermostat has failed
C.cylinder liner may be cracked
D.raw water pump is over-speeding just prior to engine shutdown

單項(xiàng)選擇題

If a diesel engine turned over at normal cranking speed but failed to start, the cause could be late fuel injection or （）

A.excessive fuel pressure
B.high lube oil viscosity
C.inadequate fuel injection
D.excessive starting air pressure

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