How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）

A diesel engine piston ring face is in direct contact with the （）.

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 （）.

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

A thrust bearing is used with a propulsion diesel engine to （）.

Lube oil cannot be efficiently filtered if its （）.

What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）

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

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