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Railways NTPC (Technical Ability) Tool Engineering Question Bank Tool Engineering

  • question_answer
    While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is:

    A) Independent of index change gear ratio

    B) Dependent on speed change gear ratio

    C) Interrelated to index change gear ratio

    D) Independent of speed and index change gear ratio

    Correct Answer: C

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