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  1. When a low carbon steel is heated upto upper critical temperature

  2. A.
    there is no change in grain size
    B.
    the average grain size is a minimum
    C.
    the grain size increases very rapidly
    D.
    the grain size first increases and then decreases very rapidly

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    Workspace

    Answer : Option B

    Explanation :

    No answer description available for this question.


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