Air Pollution Multiple Choice Questions and Answers PDF


1. The major contributor of Carbon monoxide is
a. Motor vehicle
b. Industrial processes
c. Stationary fuel combustion
d. None of the above
(Ans: a)

2. Fugitive emissions consist of
a. Street dust
b. Dust from construction activities
c. Dust from farm cultivation
d. All of the above

3. Ozone of finding in
a. Mesosphere
b. Ionosphere
c. Stratosphere
d. Exosphere

4. Ozone is formed in the upper atmosphere by a photochemical reaction with
a. Ultraviolet solar radiation
b. Infrared radiation
c. Visible light
d. All of the above

5. The principal source of volatile organics (Hydrocarbons) is
a. Transportation
b. Industrial processes
c. Stationary fuel combustion
d. Volcanoes

6.The function of automobile catalytic converter is to control emissions of
a. carbon dioxide and hydrogen
b. carbon monoxide and hydrogen
c. carbon monoxide and carbon dioxide
d. carbon monoxide and nitrogen dioxide

7. The list of industrial sources of air pollution and their emissions are given. Match the following.
A. Ammonia 1. Carbon monoxide
B. Plating 2. Particulates
C. Fertilizers 3. Metal fumes
The correct order is
a. A-1, B-2, C-3
b. A-3, B-2, C-1
c. A-1, B-3, C-2
d. A-3, B-1, C-2

8. The threshold concentration of sulfur dioxide in any industrial activity should not be permitted beyond
a. 2ppm
b. 3ppm
c. 4ppm
d. 5ppm

9. The threshold limit of benzene is
a. 15ppm
b. 20ppm
c. 25ppm
d. 30ppm

10. Which of the following is used as an antiknock compound in gasoline?
a. tetramethyl lead
b. tetraethyl lead
c. trimethyl lead
d. triethyl lead

10. Which of the following is a fermentation product of molasses?
a. Methanol
b. Formaldehyde
c. Ammonia
d. Acetone

11. The boiler flue gas is a source of
a. HCl
b. NO
c. HF
d. Volatile organic compounds

12. According to EPA of USA, the following is not one of the six major pollutants?
a. Ozone
b. Carbon monoxide
c. Nitrogen oxides
d. Carbon-di-oxide

13. The Pollution Standard Index (PSI) scale has spanned from
a. 0-200
b. 0-300
c. 0-400
d. 0-500

14. Which of the following is an organic gas?
a. Hydrocarbons
b. Aldehydes
c. Ketones
d. Ammonia

15. Which of the following is/are inorganic gas (es)?
a. Carbon monoxide
b. Hydrogen sulfide c. Chlorine
d. All of the above

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