WELDING 3 ARC AND RESISTANCE WELDING - Practice Mode

External Induction Mutual Induction Core Induction Mutual Reduction

Correct Answer: Mutual Induction

Less initial cost Less maintenance cost Not suitable for welding of Non-ferrous metals Freedom from Arc blow

Correct Answer: Not suitable for welding of Non-ferrous metals

Reduces AC voltage Increases AC voltage Convert AC into DC Increases AC current

Correct Answer: Convert AC into DC

Higher working efficiency Lower working efficiency No noise Less maintenance cost

Correct Answer: Lower working efficiency

To convert AC into DC To take AC main supply To rotate the Armature To supply DC for welding

Correct Answer: To rotate the Armature