It is necessary to maintain the valve clearances as they
A. Reduce the resistance to sliding that occurs between the cam and the tappet
B. Allow for lengthening of the valves owing to the heat of combustion
C. Increase the speed at which the valves move up and down
D. Make the crankshaft turn smoothly
Answer: Option B
Solution(By Examveda Team)
It is necessary to maintain the valve clearances as they Allow for lengthening of the valves owing to the heat of combustionThis Question Belongs to Mechanical Engineering >> Automobile Engineering
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Allow for lengthening of the valves owing to the heat of combustion