Q. One of the following is type of tempering heat treatment

  • (A) low temperature tempering
  • (B) high temperature tempering
  • (C) medium temperature tempering
  • (D) all of the above
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✅ Correct Answer: (D) all of the above

Published by Mr. Dubey ⭐ 111.54K Points at 18-Sep-2023 09:33 pm in Engineering Metallurgy

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