Pollution Control Technologies MCQs January 8, 2026August 13, 2024 by u930973931_answers 20 min Score: 0 Attempted: 0/20 Subscribe 1. What is the primary purpose of a scrubber in pollution control? (A) To filter particulate matter (B) To reduce noise pollution (C) To remove sulfur dioxide (SO₂) from exhaust gases (D) To capture carbon dioxide (CO₂) in water 2. Which technology is commonly used to control particulate matter emissions from industrial processes? (A) Catalytic converter (B) Scrubber (C) Electrostatic precipitator (D) Activated carbon filter 3. What is the main function of a catalytic converter in vehicles? (A) To reduce noise (B) To convert harmful gases into less harmful substances (C) To remove particulate matter (D) To capture carbon dioxide 4. Which type of filter is used to remove fine particulate matter (PM2.5) from air? (A) Baghouse filter (B) Cyclone separator (C) Electrostatic precipitator (D) Activated carbon filter 5. What is the purpose of a vapor recovery system in pollution control? (A) To remove solid waste (B) To reduce noise emissions (C) To recover and recycle volatile organic compounds (VOCs) (D) To treat wastewater 6. Which technology is used to remove nitrogen oxides (NOx) from exhaust gases? (A) Wet scrubber (B) Electrostatic precipitator (C) Selective catalytic reduction (SCR) (D) Activated carbon adsorption 7. What is the primary function of a cyclone separator? (A) To remove gases from exhaust streams (B) To convert CO₂ into O₂ (C) To separate particulate matter from gases using centrifugal force (D) To remove dissolved solids from wastewater 8. Which technology is commonly used to control emissions of sulfur dioxide (SO₂) from flue gases? (A) Baghouse filter (B) Carbon capture and storage (C) Electrostatic precipitator (D) Wet scrubber 9. What is the primary purpose of activated carbon in air and water treatment? (A) To remove particulate matter (B) To adsorb volatile organic compounds (VOCs) and other pollutants (C) To neutralize acids (D) To filter heavy metals 10. Which type of technology is used to remove dissolved gases from water? (A) Air stripping (B) Adsorption (C) Reverse osmosis (D) Sedimentation 11. What does the term “bioremediation” refer to in pollution control? (A) Using chemical processes to treat pollutants (B) Using heat to destroy pollutants (C) Using physical methods to separate pollutants (D) Using biological organisms to degrade or neutralize pollutants 12. Which pollution control technology is often used in wastewater treatment to remove organic matter? (A) Electrostatic precipitator (B) Activated sludge process (C) Cyclone separator (D) Scrubber 13. What is the main advantage of using a membrane filtration system for water treatment? (A) It provides high-quality water by removing contaminants at a molecular level (B) It removes large particles and does not require chemical additives (C) It converts pollutants into harmless substances (D) It absorbs pollutants from water 14. Which technology is used to control ammonia emissions from animal waste? (A) Scrubber (B) Electrostatic precipitator (C) Biofilter (D) Activated carbon filter 15. What is the main purpose of a denitrification system in wastewater treatment? (A) To remove phosphates (B) To convert nitrate to nitrogen gas (C) To reduce biological oxygen demand (D) To filter particulate matter 16. Which technology is used to capture and store carbon dioxide emissions from power plants? (A) Carbon capture and storage (CCS) (B) Electrostatic precipitator (C) Baghouse filter (D) Scrubber 17. What is the function of a condensate recovery system in industrial processes? (A) To remove particulate matter from exhaust gases (B) To recover and reuse condensate water from steam systems (C) To reduce noise pollution (D) To capture volatile organic compounds 18. Which of the following is a common method for controlling oil spills in water bodies? (A) Baghouse filters (B) Electrostatic precipitators (C) Cyclone separators (D) Chemical dispersants 19. What is the main function of a thermal oxidizer in pollution control? (A) To cool down hot gases (B) To remove heavy metals from exhaust gases (C) To burn off volatile organic compounds (VOCs) and other pollutants (D) To absorb pollutants 20. Which technology is used to control noise pollution in industrial settings? (A) Acoustic panels and barriers (B) Electrostatic precipitator (C) Activated carbon filter (D) Scrubber