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

  • question_answer
    Duralumin alloy contains aluminium and copper in the ratio of:

    A)
    % AI % Cu
    94 4

    B)
    % AI % Cu
    90 8

    C)
    % AI % Cu
    88 10

    D)
    % AI % Cu
    86 12

    Correct Answer: A


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