Chemistry, asked by sahil45668, 3 months ago

what is knocking in engine?

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Answered by Anonymous

Answer:

Knocking, in an internal-combustion engine, sharp sounds caused by premature combustion of part of the compressed air-fuel mixture in the cylinder. In a properly functioning engine, the charge burns with the flame front progressing smoothly from the point of ignition across the combustion chamber.

Explanation:

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