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Railways NTPC (Technical Ability) Fabrication Process Question Bank Fabrication Process

  • question_answer
    Which one of the following welding processes consists of minimum heat effected zone (HAZ)?

    A) Shielded Metal Arc Welding (SWAW)

    B) Laser Beam Welding (L3BW)

    C) Ultrasonic Welding (USW)

    D) Metal Inert Gas Welding MIG)

    Correct Answer: C

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