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  1. The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is converted to

    2. A.

    grey cast iron
    B.

    white cast iron
    C.

    mottled cast iron
    D.

    toughed cast iron.

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    Answer : Option C

    Explanation :

    No answer description available for this question

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