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Free download in PDF Air Pollution Multiple Choice Questions(MCQs) & Answers. These multiple choice questions on Air Pollution are very useful for SSC, UPSC etc.
(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
(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
(3)
Secondary air pollutant is
[A]
Ozone
[B]
Carbon monoxide
[C]
Nitrogen Dioxide
[D]
Sulphur dioxide
(4)
SMOG is derived from
[A]
Smoke
[B]
Fog
[C]
Both A and B
[D]
Only A
(5)
Proportion of CO consumption consists of basic components:
[A]
The leaf boundary layer
[B]
The stomata
[C]
Radiation exchange
[D]
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
(8)
Which of the following leads to a disease called broncho spasm?
[A]
SO2
[B]
SO3
[C]
SO4
[D]
CO2
(9)
Which of the following gases has the highest affinity for blood haemoglobin?
[A]
Carbon dioxide
[B]
Oxygen
[C]
Carbon monoxide
[D]
Nitrogen
(10)
Which is/are the most significant air-borne allergen(s)?
[A]
Fungi
[B]
Pollen
[C]
Soot
[D]
All of the mentioned
(11)
Which of the following is responsible for turning yellow Taj Mahal?
[A]
Nitrogen dioxide
[B]
Sulphur
[C]
Chlorine
[D]
Sulphur dioxide
(12)
The boiler flue gas is source of
[A]
HCl
[B]
NO
[C]
HF
[D]
Volatile organic compounds
(13)
The threshold concentration of sulphur dioxide in any industrial activity should not be permitted beyond
[A]
2ppm
[B]
3ppm
[C]
4ppm
[D]
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
(16)
The maximum size of fly ash is
[A]
1μm
[B]
100μm
[C]
1000μm
[D]
10μm
(17)
Which gas is mainly produced due to incomplete burning of wood?
[A]
CO
[B]
SO2
[C]
NO2
[D]
NO3
(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
(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
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