Which one of the following is the hardest? Which one of the following is NOT the

Question

Which one of the following is the hardest? Which one of the following is NOT the method to strengthen the metal? What is the percent cold work (%CW) of a cylindrical copper rod when its diameter is reduced from 10 mm to 8 mm? Critical resolved shear stress is a material property. Water and ice have the same chemical formula, so they are the same phase. Hardness is proportional to tensile strength. 7. The larger the safety factor, the better the design. True stress is always smaller than the engineering stress. A solid phase transforms into two other solid phases upon cooling, and the reverse reaction occurs upon heating. It is called a reaction. The temperature at which recrystallization reaches completion is called recrystallization temperature.

Explanation / Answer

1)D

2)D

3)B

4) True

5) False

6) True

7) False

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