题目内容

The fan_____the engine provides a flow of air.

A. at the front of
B. at the rear of
C. at the bottom of
D. at the top of

查看答案
更多问题

The fan at the front of the engine provides a flow of air through the_____as part of the engine's cooling system.

A. coolant
B. radiator
C. thermostat
D. antifreeze

The piston _____connects the piston to the connecting rod.

A. rod
B. pin
C. flange
D. body

The piston is fitted with _____piston rings.

A. four
B. three
C. two
D. one

The top two rings seal the piston to the cylinder wall and prevent _____ from entering the crankcase.

A. air-fuel mixture
B. combustion gases
C. excessive fuel
D. excessive oil

答案查题题库