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

  • question_answer
           Consider the following processes            
    1. Gas welding               
    2. Thermit welding                     
    3. Arc welding               
    4. Resistance welding                   
    The correct sequence of these processes in increasing order of their welding temperatures is:       

    A) 1, 3, 4, 2                      

    B) 1, 2, 3, 4      

    C) 4, 3, 1, 2                      

    D) 4, 1, 3, 2

    Correct Answer: D

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