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

  • question_answer
                                     Notch wear at the outside edge of the depth of cut is due to:

    A) Abrasive action of the work hardened chip material

    B) Oxidation

    C) Slip-stick action of the chip

    D) Chipping

    Correct Answer: B

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