NPTEL Air Pollution and Control Week 8 Solutions

This set of MCQ(multiple choice questions) focuses on the NPTEL Air Pollution and Control Week 8 Solutions

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NPTEL Air Pollution and Control Week 8 Solutions

Q1. In the case study presented for nursery buildings in UAE; which of the following methods was not carried out for improvement in Indoor Air Quality:

a) Installation of air purifier
b) Change of building material
c) Installation of new ventilation
d) Using ESP and ionizers

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Q2. In the case study presented for nursery buildings in UAE; which of the following pollutants had the highest reduction rate with ventilation facilities:

a) Total Volatile Organic Compound (TVOC)
b) Total Suspended particles (TSP)
c) Formaldehyde (CH₂O)
d) Carbon dioxide (CO₂)

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Q3. The compounds which contribute to ozone layer depletion by releasing Chlorine or Bromine when exposed to sunlight are called:

a) Ozone Discharging Substances (ODS)
b) Ozone Depleting Substances (ODS)
c) Ozone Depleting Surfaces (ODS)
d) Ozone Discharging Surfaces (ODS)

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Q4. In which of the following regions, the first incident of the ozone layer depletion was discovered 

a) South America
b) Antarctica
c) Asia
d) Europe

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NPTEL Air Pollution and Control Week 8 Solutions

Q5. __________is the amount of warming or cooling in temperature due to physical and chemical changes that affect the global energy balance and force changes in the Earth’s climate.

a) Global Warming Potential (GWP)
b) Annual Greenhouse Gas Index (AGGI)
c) Radiative forcing
d) Feedback process

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Q6. Global Warming Potential (GWP) of a greenhouse gas (GHG) in comparison to CO₂ after 100 years is known as GWP100. What is GWP100 of Methane (CH4)?

a) 10
b) 15
c) 20
d) 28

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Q7. ______ refers to the long term shift in the temperature and the weather patterns. 

a) Acid rain
b) Ozone depletion
c) Climate change
d) Greenhouse effect

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Q8. _______ is an urban centre that is warmer than the surrounding less populated areas.

a) Heat island
b) Sink
c) Reflectivity
d) Absorption

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Q9. Which of the following is not a type of acid deposition?

a) Wet deposition
b) Dry deposition
c) Snowfall
d) Volatilization

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NPTEL Air Pollution and Control Week 8 Solutions

Q10. The normal rain is slightly acidic (pH ≈ 5.6) because carbon dioxide dissolves into it forms weak ________ acid. 

a) Nitric acid (HNO₃)
b) Sulphuric acid (H₂SO₄)
c) Carbonic acid (H₂CO₃)
d) Hydrochloric acid (HCL)

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