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  1. Cold working of metal increases

    2. A.

     Tensile strength
    B.

     Yield strength
    C.

     Hardness
    D.

     All of these

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    Answer : Option D

    Explanation :

    work hardening is that which occurs in metalworking processes that intentionally induce plastic deformation to exact a shape change. These processes are known as cold working or cold forming processes. ... The cold working of the metal increases the hardness, yield strength, and tensile strength.

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