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Railways RRB (Assistant Loco Pilot) Solved Paper-2014

  • question_answer
    The elements in the portland cement is/are -

    A)  Silica, Alumina and Magnesia

    B)  Lime, Silica and Magnesia

    C)  Lime, Silica and Iron oxide

    D)  Lime, Silica and Alumina

    Correct Answer: C

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