The GATE Grind

GATE 2024 ES – Question 29

Air and Noise Pollution · Particulate Pollutants · 1 mark · Multiple select

Which equipment controls industrial particulate air pollution?

  1. Electrostatic precipitator
  2. Cyclone separator
  3. Gravity settler
  4. Incinerator

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Show answer and explanation

Correct answer: (A) Electrostatic precipitator; (B) Cyclone separator; (C) Gravity settler

Explanation

Electrostatic precipitators collect charged particles, cyclones separate by centrifugal/inertial action, and gravity chambers settle sufficiently large particles. Incineration primarily destroys combustible waste/organics and can itself emit particulate matter; it is not the listed particle-collection device. Select **A, B, C**.

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