Combustion knock occurring in a diesel engine can be caused by （）.

A diesel engine piston ring face is in direct contact with the （）.

Routine monitoring of a diesel engine should include （）.

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

A thrust bearing is used with a propulsion diesel engine to （）.

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

Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）

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

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

The highest pressure in a diesel engine cylinder normally occurs （）.