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 （）.

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

What is the function of the thrust bearing?（）

In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.

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

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

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

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

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