

MCQOPTIONS
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1. |
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» C. Increase the speed at which the valves move up and down | |