Question: It is necessary to maintain the valve clearances as they
[A].reduce the resistance to sliding that occurs between the cam and the tappet
allow for lengthening of the valves owing to the heat of combustion
increase the speed at which the valves move up and down
make the crankshaft turn smoothly
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.