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GATE 2021 MT – Question 45

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

Match terms to unit processes.

P. Submerged entry nozzle

Q. Electric heating

R. Raceway zone

S. Oxygen lancing

1. Ladle furnace

2. Continuous casting

3. LD converter

4. Blast furnace

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

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Show answer and explanation

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

Explanation

Submerged entry nozzles feed continuous casting; electric heating is used in a ladle furnace; the raceway flame is in a blast furnace; oxygen lancing is in the converter.

Thus P-2,Q-1,R-4,S-3, **A**.