单项选择题
If a tow-stroke/diesel engine is over-speeding due to leakage of lube oil into the cylinders, what should you do to stop the engine?（）
A.Move the fuel control mechanism to the no fuel position B.Block the fuel supply by closing the master fuel valve C.Shut off the fuel supply and block the flow of intake air D.Relieve all pressure in the fuel system
单项选择题 The breaking-up of fuel as it enters a diesel engine cylinder is known as（）
单项选择题 The exhaust ports of a diesel engine using the cross-flow scavenging method are opened and closed by the （）
单项选择题 When fuel enters the crankcase of a diesel engine, it （）
