Maximum horsepower of a diesel engine is attained （）.

Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.

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

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

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

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

Routine monitoring of a diesel engine should include （）.

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

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?（）

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