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

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 （）.

Lube oil cannot be efficiently filtered if its （）.

Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.

Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.

In using reduction gears to obtain efficient propeller speeds, （）.

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

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

Maximum horsepower of a diesel engine is attained （）.