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

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

Diesel engine control can be obtained by the bridge （）.

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

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

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

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 （）.

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

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?（）