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Railways Basic Science and Engineering Engineering Drawing Question Bank Engineering Drawing

  • question_answer
    Which set of lead grades has a grade out of sequence?

    A)  H, HB, B, 3B               

    B)  7B, H, F, 3H

    C)  6B, B, H, 4H               

    D)  9H, HB, B, 2B

    Correct Answer: B

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