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

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?（）

The highest pressure in a diesel engine cylinder normally occurs （）.

The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.

Combustion knock occurring in a diesel engine can be caused by （）.

When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）

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

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

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