Post weld heat treatment is done by____________________?
Correct answer: B. Stress relieving
- A. Normalising
- B. Stress relieving
- C. Tempering
- D. Solution annealing
Explanation
Post-weld heat treatment commonly means stress relieving, in which the welded component is heated below the transformation range and cooled slowly to reduce residual stresses. Normalising, tempering and solution annealing are different heat-treatment operations used for specific material conditions.
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