In seam welding 

  • AThe work piece is fixed and disc electrodes move 
  • BThe work piece moves but rotating electrodes are fixed 
  • CAny of the above 
  • DNone of the these 
Correct Answer : (C)

Any of the above 

Hints :

During resistance welding heat produced at the joint is proportional to


The metal surfaces for electrical resistance welding must be

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