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Railways NTPC (Technical Ability) Materials Science Question Bank Materials Science

  • question_answer
    The alloy steel designated as 40 Cr 18 Ni 2 by Bureau of Indian Standards contains:

    A) 0.4% C, 18% Cr and 2% Ni

    B) 4.0% C, 1.8% Cr and 0.2% Ni

    C) 0.4% C, 1.8% Cr and 0.2% Ni

    D) 0.4% C, 1.8% Cr and 0.2 % Ni.

    Correct Answer: A

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