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GATE 2022 CE (CE2) – Question 22

Air Pollution and Municipal Solid Wastes · Air pollution: pollutants, sources, impacts, control and air quality index · 1 mark · Multiple choice

A process equipment emits 5 kg/h of volatile organic compounds (VOCs). If a hood placed over the process equipment captures 95% of the VOCs, then the fugitive emission in kg/h is

  1. 0.25
  2. 4.75
  3. 2.50
  4. 0.48

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Show answer and explanation

Correct answer: (A) 0.25

Explanation

Captured emission is $5(0.95)=4.75$ kg/h. Fugitive emission is the uncaptured remainder.

Therefore $5-4.75=\mathbf{0.25}$ kg/h, **A**. The captured quantity is not the fugitive quantity.