1. Lap joints in plates having 0.025 mm to 1.25 mm thickness
  2. Lap joints in plates having thickness above 3 mm
  3. Butt joints in plates having 0.025 mm to 1.25 mm thickness
  4. Butt joints in plates having thickness above 3 mm
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1 Answers

Answer: Option 1

Spot welding is used for welding Lap joints in plates having 0.025 mm to 1.25 mm thickness

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