Manufacturing And Production Technology
If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?

Flux cored ARC welding
Pulsed spray welding
Forehand welding
Electro slag welding

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Manufacturing And Production Technology
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. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm.

2.17 rpm, 600 joules
5.03 rpm, 600 joules
6.8 rpm, 6 joules
22 rpm, 600 joules

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