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  1. The electrodes used in spot welding have a tip of

    2. A.

     Stainless steel
    B.

     Aluminium
    C.

     Copper
    D.

     Brass

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    Answer : Option C

    Explanation :

    The electrodes are one of the most important factors in the resistance welding process but often the most abused. It is important to consider the electrode material, shape, size, tip profile and cooling.

    The electrodes used in spot welding have a tip of Copper

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