If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.

The highest pressure in a diesel engine cylinder normally occurs （）.

If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.

When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）

In a simple mechanical governor, the （）.

If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.

Diesel engine control can be obtained by the bridge （）.

Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）

The function of diesel engine piston compression rings is to （）.

Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.