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

  • question_answer
    Alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and:

    A) Chromium                    

    B) silicon

    C) Manganese                    

    D) magnesium.

    Correct Answer: C

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