In using reduction gears to obtain efficient propeller speeds, （）.

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

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

To determine if the lube oil filter elements need changing, （）.

Lube oil cannot be efficiently filtered if its （）.

Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.

In a simple mechanical governor, 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 diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.

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