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

  • question_answer
    Which one of the following processes in most commonly used for the forging of bolt heads of hexagonal shape?

    A) Closed die drop forging

    B) Open die upset forging

    C) Close die press forging

    D) Open die progressive forging.

    Correct Answer: D


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