Which of the following metals cannot be hot worked at room temperature ?
Correct answer: B. Nickel
- A. Zinc
- B. Nickel
- C. Lead
- D. Tin
Explanation
Nickel has a high recrystallization temperature, so room temperature is below the range required for hot working. Zinc, lead, and tin have relatively low recrystallization temperatures and can be hot worked near room temperature.
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