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Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles on and 2 cycles off Power supply is at 50 Hz.

A. 3000 welds / min, 75 mm / min

B. 600 welds / min, 1500 mm / min

C. 500 welds/ min, 1250 mm/min

D. 22 welds / min, 55 mm / min

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