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MEO Class II – MEP : 2022/DEC/03 – 2023/FEB/07 – 2024/SEP/06
Question

Q3. State how each of the following practices affect piston ring life: (a) Nitriding of rings, (b) Chromium plating of ring grooves, (c) Contouring of rubbing faces, (d) Carbon or copper coating of rubbing faces.

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