Which technique enhances the fatigue life of mechanical components?

Machine Design MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Machine Designmechanical-engineering-mcqs › machine-design
Published
26 Jan 2019
Last updated
28 May 2026

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Explanation

Shot peening is a process that induces compressive residual stresses on the surface of parts, which helps to improve their resistance to fatigue failure. While finishing, decarburisation, and electroplating affect surface properties, they do not significantly enhance fatigue life like shot peening does.

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