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Railways NTPC (Technical Ability) Metal Forming, Casting and Cutting Question Bank Metal Cutting

  • question_answer
    Why does crater wear start at some distance from the tool tip?

    A) Tool strength is minimum at that region.

    B) Cutting fluid cannot penetrate that region.

    C) Tool temperature is maximum in that region

    D) Stress on rake face is maximum at that region.

    Correct Answer: C

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