Chapter 7 COPPER WELDING MCQs

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1. . For Copper Welding ……… flame is used.





2. . Before welding, edges should be cleaned from ………





3. . After welding, to make ……… properties better, light striking is done with the help of hammer.





4. . Copper is good conductor of electricity therefore ……… is not necessary.





5. . Place the base metal on the ……… during welding because copper has a good capability to bear the heat.





6. . For Copper welding a filler rod of ……… gauge should be used.





7. . Copper melting point is ………





8. . The angle between torch nozzle and metal surface should be ………





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