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For complete closure of engine valve, a clearance of ___ is provided at the end of the valve stem.
Question

For complete closure of engine valve, a clearance of ___ is provided at the end of the valve stem.

A.

0·15 mm–0·41 mm

B.

0·31 mm–0·51 mm

C.

0·50 mm–0·60 mm

D.

None of the above

Correct option is A

Proper valve clearance of 0.15 mm–0.41 mm ensures complete closure of the engine valve, preventing loss of compression and enhancing engine efficiency.

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