單項(xiàng)選擇題

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

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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