The GATE Grind

GATE 2023 MT – Question 46

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

Match welding techniques with the most appropriate applications.

Column I:

P. Submerged arc welding

Q. Electroslag welding

R. Shielded metal arc welding

S. Resistance spot welding

Column II:

1. Thick sections

2. Surfacing and repair

3. Thin sheets

4. Flat position

  1. P – 4, Q – 1, R – 2, S – 3
  2. P – 3, Q – 2, R – 1, S – 4
  3. P – 1, Q – 3, R – 4, S – 2
  4. P – 2, Q – 4, R – 3, S – 1

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Show answer and explanation

Correct answer: (A) P – 4, Q – 1, R – 2, S – 3

Explanation

Submerged arc is suited to flat welding with its flux blanket (P4). Electroslag joins thick sections (Q1). Shielded metal arc is versatile for surfacing and repair (R2). Resistance spot welding joins thin overlapping sheets (S3).

Thus **A**.