The GATE Grind

GATE 2022 MT – Question 38

Mineral Processing and Extractive Metallurgy · Mineral beneficiation · 2 marks · Multiple choice

Match mineral-processing operations with physical principles.

Column I:

P. Flotation

Q. Jigging

R. Tabling

S. Comminution

Column II:

1. Difference in speed of lateral movements

2. Hydrophobicity

3. Difference in size reduction

4. Difference in initial acceleration

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

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Show answer and explanation

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

Explanation

Flotation separates by hydrophobicity; jigging uses differential initial acceleration; tabling separates lateral motion; comminution reduces particle size. This is P-2,Q-4,R-1,S-3, **A**.