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

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

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

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

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

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

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

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

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

The main purpose of the piston oil scraper rings is to （）.