Fatigue resistance of materials can be improved by:1. Shot peening2. Polishing the surfaceWhich of the above is /are correct?

Fatigue resistance of materials can be improved by:1. Shot peening2. P

1.	Fatigue resistance of materials can be improved by:1. Shot peening2. Polishing the surfaceWhich of the above is /are correct?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» D. Neither 1 nor 2

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Fatigue resistance of materials can be improved by:1. Shot peening2. Polishing the surfaceWhich of the above is /are correct?

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