1. . Which of the following is an air pollutant?
(A) Carbon monoxide
(B) Carbon dioxide
(C) Nitrogen
(D) Oxygen
2. . Which of the following is a secondary pollutant?
(A) Ozone
(B) Carbon dioxide
(C) Carbon monoxide
(D) Sulphur dioxide
3. . Which of the following groups of plants can be used as indicators of air pollution?
(A) Epiphytic lichens
(B) Ferns
(C) Liverworts
(D) Hornworts
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 monoxide
5. . Smog is
(A) A natural phenomenon
(B) Combination of smoke & fog
(C) Is colourless
(D) All of the above
6. . The photochemical oxidant is
(A) Nitrogen oxide
(B) Ozone
(C) Hydrogen peroxide
(D) Peroxyl Acetyl Nitrate (PAN)
7. . Which of the following are likely to be present in photochemical smog?
(A) Chlorofluorocarbons
(B) Photochemical oxidants
(C) Sulphur dioxide
(D) Smog
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 filter
9. . Air pollution from automobiles can be controlled by fitting
(A) Catalytic converter
(B) Electrostatic precipitators
(C) Cyclone separator
(D) Wet scrubber
10. . Fluoride pollutant mainly affects
(A) Kidney
(B) Brain
(C) Heart
(D) Teeth
11. . Which gas exists in the highest concentration in the earth’s atmosphere?
(A) Hydrocarbons
(B) Nitrogen
(C) Oxygen
(D) Ozone
12. . Limiting value of concentration of sulphur dioxide in residential area is
(A) 80 μg/m³
(B) 50 μg/m³
(C) 65 μg/m³
(D) 40 μg/m³
13. . The following pollutant is not contained in vehicular emission
(A) Ammonia
(B) Lead
(C) Carbon monoxide
(D) Particulate matter
14. . SPM stands for
(A) Standard Particles materials
(B) Suspended Particulate matter
(C) Suspended particles materials
(D) None of these
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 problem
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 system
17. . Method to measure the air pollutant is
(A) Ozone
(B) All of these
(C) Sulphur Dioxide
(D) Oxides of Nitrogen
18. . Fine particles (PM-10) are measured using
(A) Ammonia
(B) Hydrogen
(C) Carbon monoxide
(D) T.E.O.M filter
19. . The value of Moderate Air Quality is
(A) 100 - 200
(B) 51 - 100
(C) 200 - 300
(D) 0 - 50
20. . Major causes of air pollution are
(A) Ozone Level
(B) Wildfire
(C) All of these
(D) Reducing sunlight