Railways Technical Ability Automobile Engineering Question Bank Automobile Engineering

  • question_answer A screw thread specified by \[M\,\,20\times 25\,\,C\] as per BIS thread system means:

    A) Metric thread of 20 mm nominal diameter and 2.5 mm pitch having coarse tolerance

    B) Metric thread of 20 mm root diameter and 2-5 mm pitch having coarse tolerance

    C) Metric thread of fine class having 20 mm root diameter and 2.5 mm pitch

    D) Metric thread of 20 mm shank diameter and 25 mm thread depth with coarse tolerance.

    Correct Answer: A


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