单项选择题 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?（）

单项选择题 Which of the following statements concerning fuel atomization in a diesel engine cylinder is correct?（）

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?（）