Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）

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

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

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

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

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

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

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

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

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