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GATE 2022 MT – Question 27

Manufacturing Processes · Metal forming · 1 mark · Multiple choice

Match forming processes to their characteristic defects.

Column I:

P. Extrusion

Q. Deep drawing

R. Forging

S. Rolling

Column II:

1. Earing

2. Cold shut

3. Edge cracking

4. Fir-tree cracking

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

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Show answer and explanation

Correct answer: (D) P − 4, Q − 1, R − 2, S − 3

Explanation

Extrusion can develop fir-tree cracking; deep drawing develops earing through anisotropy; forging can trap folds as cold shuts; rolling can develop edge cracks. P-4,Q-1,R-2,S-3 gives **D**.