White smoke exhausting from an operating diesel engine may indicate （）.

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

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

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

In a simple mechanical governor, the （）.

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

Lube oil cannot be efficiently filtered if its （）.

An automated diesel engine should normally shut down due to （）

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 （）.