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Which mode results when piston-cylinder clearances improperly shrink?

A)Thermal lock leading to seizure
B)Increased blow-by past piston rings
C)Elevated combustion chamber temperatures
D)Reduced oil pressure in engine

💡 Explanation

Thermal lock and subsequent seizure occurs because differential thermal expansion significantly reduces critical operational clearances, generating extensive frictional heating. Therefore, seizure results rather than blow-by, and temperature rises are a consequence, not the primary issue.

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