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

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

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

Lube oil cannot be efficiently filtered if its （）.

Maximum horsepower of a diesel engine is attained （）.

Proper filtering and straining of fuel oil is important because the （）.

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

The minimum speed an engine must attain before ignition can occur depends upon （）.

In a simple mechanical governor, the （）.

The ability of the governor to prevent fluctuations in engine speed is termed （）.