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

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

Proper filtering and straining of fuel oil is important because the （）.

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

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

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

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

What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）

Lube oil cannot be efficiently filtered if its （）.

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