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In _________ welding heavy current (50,000A) is passed through the joint which gets melt and welding is under external pressure.

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In _________ welding heavy current (50,000A) is passed through the joint which gets melt and welding is under external pressure.

(a) Arc welding

(b) Gas welding

(c) Forge welding

(d) Spot welding

I got this question in quiz.

My question is from Welded Joints topic in portion Computer Aided Drawing, Riveted & Welded Joints of Engineering Drawing

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The correct answer is (d) Spot welding

The best I can explain: In this welding heavy current (50,000A) is passed through the joint which gets melt. The welding is completely under external pressure. Spot welding, seam welding and flash butt welding are examples of pressure resistance welding.

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