When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.

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

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

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

Routine monitoring of a diesel engine should include （）.

If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.

Lube oil cannot be efficiently filtered if its （）.

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

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 （）.

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?（）