Air Pollution MCQs – CHAPTER 2 DAE 20 min Score: 0 Attempted: 0/20 Subscribe 1. . Which of the following is an air pollutant? (A) Carbon monoxide (B) Carbon dioxide (C) Nitrogen (D) OxygenShow All Answers 2. . Which of the following is a secondary pollutant? (A) Ozone (B) Carbon dioxide (C) Carbon monoxide (D) Sulphur dioxideShow All Answers 3. . Which of the following groups of plants can be used as indicators of air pollution? (A) Epiphytic lichens (B) Ferns (C) Liverworts (D) HornwortsShow All Answers 4. . Which of the following inhaled gases dissolves in the blood hemoglobin more rapidly than oxygen? (A) Sulphur dioxide (B) Nitrous oxide (C) Ozone (D) Carbon monoxideShow All Answers 5. . Smog is (A) A natural phenomenon (B) Combination of smoke & fog (C) Is colourless (D) All of the aboveShow All Answers 6. . The photochemical oxidant is (A) Nitrogen oxide (B) Ozone (C) Hydrogen peroxide (D) Peroxyl Acetyl Nitrate (PAN)Show All Answers 7. . Which of the following are likely to be present in photochemical smog? (A) Chlorofluorocarbons (B) Photochemical oxidants (C) Sulphur dioxide (D) SmogShow All Answers 8. . Which of the following devices is suitable for the removal of gaseous pollutants? (A) Cyclone separator (B) Electrostatic precipitators (C) Wet scrubber (D) Fabric filterShow All Answers 9. . Air pollution from automobiles can be controlled by fitting (A) Catalytic converter (B) Electrostatic precipitators (C) Cyclone separator (D) Wet scrubberShow All Answers 10. . Fluoride pollutant mainly affects (A) Kidney (B) Brain (C) Heart (D) TeethShow All Answers 11. . Which gas exists in the highest concentration in the earthโs atmosphere? (A) Hydrocarbons (B) Nitrogen (C) Oxygen (D) OzoneShow All Answers 12. . Limiting value of concentration of sulphur dioxide in residential area is (A) 80 ฮผg/mยณ (B) 50 ฮผg/mยณ (C) 65 ฮผg/mยณ (D) 40 ฮผg/mยณShow All Answers 13. . The following pollutant is not contained in vehicular emission (A) Ammonia (B) Lead (C) Carbon monoxide (D) Particulate matterShow All Answers 14. . SPM stands for (A) Standard Particles materials (B) Suspended Particulate matter (C) Suspended particles materials (D) None of theseShow All Answers 15. . Significant air pollution problems are (A) Deforestation, Noise pollution, Earthquake (B) Skin diseases, high blood pressure, loss of appetite (C) Soil erosion, water logging & salinity (D) Acid precipitation, ozone depletion & human health problemShow All Answers 16. . Settling chambers or gravity chambers are collector of solid particles and attached with (A) Chimneys (B) Individual machinery (C) Vehicular exhausts (D) Fire alarm systemShow All Answers 17. . Method to measure the air pollutant is (A) Ozone (B) All of these (C) Sulphur Dioxide (D) Oxides of NitrogenShow All Answers 18. . Fine particles (PM-10) are measured using (A) Ammonia (B) Hydrogen (C) Carbon monoxide (D) T.E.O.M filterShow All Answers 19. . The value of Moderate Air Quality is (A) 100 - 200 (B) 51 - 100 (C) 200 - 300 (D) 0 - 50Show All Answers 20. . Major causes of air pollution are (A) Ozone Level (B) Wildfire (C) All of these (D) Reducing sunlightShow All Answers
