單項(xiàng)選擇題

Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?（）

A.To prevent internal damage form local overheating
B.To ensure the fuel nozzles are flushed clean
C.To clear the smoke stack
D.To let the waste heat boiler reduce its rate of steam generation

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單項(xiàng)選擇題

Clogged diesel engine fuel oil filters can cause（）

A.loss of power
B.misfiring
C.low fuel oil pressure
D.All of the above

單項(xiàng)選擇題

If a single cylinder relief valve on a main propulsion diesel engine begins to lift, but it is not possible to secure the engine, which of the following actions should be taken?（）

A.Increase the cooling water flow to the engine
B.Secure or reduce fuel to that cylinder
C.Screw down on the pressure adjusting spring to decrease to decrease popping pressure
D.Readjust the injection timing

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Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?（）

你可能感興趣的試題

Clogged diesel engine fuel oil filters can cause（）

If a single cylinder relief valve on a main propulsion diesel engine begins to lift, but it is not possible to secure the engine, which of the following actions should be taken?（）

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久