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  1. Y-alloy contains

  2. A.
    3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
    B.
    3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
    C.
    4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
    D.
    5 to 6% tin, 2 to 3% copper and rest aluminium

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    Workspace

    Answer : Option B

    Explanation :

    No answer description available for this question.


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