The GATE Grind

GATE 2025 MT – Question 47

Manufacturing Processes · Welding and joining · 2 marks · Multiple select

Which of the following welding processes does NOT / do NOT utilize consumable electrode?

  1. Plasma arc welding
  2. Gas metal arc welding
  3. Shielded metal arc welding
  4. Electron beam welding

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Show answer and explanation

Correct answer: (A) Plasma arc welding; (D) Electron beam welding

Explanation

Plasma arc welding uses a nonconsumable electrode; electron-beam welding supplies energy through a focused electron beam rather than a consumable welding electrode. Gas metal arc and shielded metal arc processes consume their electrodes. Therefore **A,D**.