Air Pollution Multiple Choice Questions(MCQs) & Answers

(1) What is the residence time (average time a particle is active in a given system) of carbon monoxide?

[A] 11-15 years

[B] 0.1-0.3 years

[C] 0.5 years

[D] Few minutes

Answer: 0.1-0.3 years

(2) What type of precautions will be taken to survive when ozone level is high?

[A] Drive less

[B] Stay hydrated

[C] Avoid using gas powered engines

[D] All of the above

Answer: All of the above

(3) Secondary air pollutant is

[A] Ozone

[B] Carbon monoxide

[C] Nitrogen Dioxide

[D] Sulphur dioxide

Answer: Ozone

(4) SMOG is derived from

[A] Smoke

[B] Fog

[C] Both A and B

[D] Only A

Answer: Both A and B

(5) Proportion of CO consumption consists of basic components:

[A] The leaf boundary layer

[B] The stomata

[C] Radiation exchange

[D] All of Above

Answer: All of Above

(6) What is Air Quality Index?

[A] It tells about the sound pollution

[B] It measures air pollution mainly sulphur content in the air

[C] It measures ozone levels in your area

[D] It checks the colour of the air

Answer: It measures ozone levels in your area

(7) Which of the following is an organic gas?

[A] Hydrocarbons

[B] Aldehydes

[C] Ketones

[D] Ammonia

Answer: Ammonia

(8) Which of the following leads to a disease called broncho spasm?

[A] SO2

[B] SO3

[C] SO4

[D] CO2

Answer: SO3

(9) Which of the following gases has the highest affinity for blood haemoglobin?

[A] Carbon dioxide

[B] Oxygen

[C] Carbon monoxide

[D] Nitrogen

Answer: Carbon monoxide

(10) Which is/are the most significant air-borne allergen(s)?

[A] Fungi

[B] Pollen

[C] Soot

[D] All of the mentioned

Answer: Pollen

(11) Which of the following is responsible for turning yellow Taj Mahal?

[A] Nitrogen dioxide

[B] Sulphur

[C] Chlorine

[D] Sulphur dioxide

Answer: Sulphur dioxide

(12) The boiler flue gas is source of

[A] HCl

[B] NO

[C] HF

[D] Volatile organic compounds

Answer: NO

(13) The threshold concentration of sulphur dioxide in any industrial activity should not be permitted beyond

[A] 2ppm

[B] 3ppm

[C] 4ppm

[D] 5ppm

Answer: 5ppm

(14) Ozone is formed in the upper atmosphere by a photochemical reaction with

[A] Ultra violet solar radiation

[B] Infra red radiation

[C] Visible light

[D] All of the above

Answer: Ultra violet solar radiation

(15) The major contributor of Carbon monoxide is

[A] Motor vehicle

[B] Industrial processes

[C] Stationary fuel combustion

[D] None of the above

Answer: Motor vehicle

(16) The maximum size of fly ash is

[A] 1μm

[B] 100μm

[C] 1000μm

[D] 10μm

Answer: 1000μm

(17) Which gas is mainly produced due to incomplete burning of wood?

[A] CO

[B] SO2

[C] NO2

[D] NO3

Answer: CO

(18) At what concentration can the taste and smell of sulphur dioxide be detected?

[A] 1000-2000ppm

[B] 11-30ppm

[C] 500-700ppm

[D] 0.1-0.3ppm

Answer: 0.1-0.3ppm

(19) Which of the following are sources to fluorine air pollution?

[A] Coal combustion

[B] Steel industries

[C] Phosphate fertiliser manufacturing

[D] All of the mentioned

Answer: All of the mentioned

(20) Which is the largest source for production of nitrous oxide?

[A] Chemical industry

[B] Fertiliser industry

[C] Fossil fuel combustion

[D] Bacterial action

Answer: Bacterial action

Air Pollution MCQs | Air Pollution Multiple Choice Questions with Answers

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Air Pollution MCQs | Air Pollution Multiple Choice Questions with Answers

By Gkseries see more questions

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