ISRO Mechanical & Aerospace 2011 - Question 57

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Match list-I (welding effect) with list-II (causes): A. Spatter B. Distortion C. Slag inclusion D. Porosity vs 1. Damp electrodes 2. Arc blow 3. Improper cleaning 4. Poor joint selection

  • A. A-2, B-4, C-3, D-1
  • B. A-4, B-2, C-1, D-3
  • C. A-2, B-4, C-1, D-3
  • D. A-4, B-2, C-3, D-1

Answer: A. A-2, B-4, C-3, D-1

Explanation: Spatter-Arc blow; Distortion-Joint design; Slag-Cleaning; Porosity-Dampness.

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