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1837. Hardened steel is softened by

September 7, 2025 by Admin

Normalising

Tempering

Annealing

Carburising

✅ The correct answer is option B.

Categories Chemical Engineering, Engineering, Materials and Construction MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Materials and Construction MCQs

1835. Urea autoclave is made of

1839. Which of the following alloys does not contain nickel?

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