For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.

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

The main purpose of the piston oil scraper rings is to （）.

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

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

Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.

Lube oil cannot be efficiently filtered if its （）.

When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.

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

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