NPTEL Air Pollution and Control Assignment 3 Answers 2023

Hello Learners, In this Post, you will find NPTEL Air Pollution and Control Assignment 3 Week 3 Answers 2023. All the Answers are provided below to help the students as a reference don’t straight away look for the solutions.

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NPTEL Air Pollution and Control Assignment 3 Answers 2023:

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Q.1. Atmospheric stability is associated with the___________

• Temperature profile
• Pressure profile
• Relative humidity profile
• Rainfall profile

Q.2. Which of the following factors is associated with the plume properties?

• Wind Speed
• Turbulence
• Exit velocity
• Atmospheric Stability

Q.3. A radiosonde equipped with various measuring devices is carried up to high altitudes by a balloon filled with__________.

• Hydrogen
• Radon
• Argon
• Nitrogen

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Q.4. Which of the following air pollutants is NOT included in the criteria pollutants?

• CO
• CO2
• Pb
• O3

Q.5. Annual National Ambient Air Quality Standard for SO2 (in μg/m3) in Industrial, Residential, Rural, other Areas is

• 50
• 60
• 70
• 80

Q.6. Calculate the sub-index for the given conditions: PM10 conc. of 90 μg/ m3, BHI= 100, BLO= 50, IHI= 100, ILO= 50, and CP = 85 μg/ m3

• 80
• 85
• 90
• 95

Q.7. When an air pollution index does not indicate poor air quality even though concentrations of one or more air pollutants may have reached unacceptably high values, it is called

• Maximum operator approach
• Minimum operator approach
• Eclipsing
• Ambiguity

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Q.8. As per the method adopted by CPCB, if the Air Quality Index (AQI) is 120, the corresponding air quality rating will be

• Minimal impact
• Minor breathing discomfort to sensitive people
• Respiratory illness on prolonged exposure
• Breathing discomfort to people with lung, asthma, and heart diseases

Q.9. The trajectory model comes under which of the following air quality modelling classification

• Coordinate systems
• Level of sophistication
• Time period
• Pollutant type

Q.10. Which of the following models is based on the Gaussian model?

• AURORA
• AERMOD
• GRAL
• ATMoS

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About NPTEL Air Pollution and Control Course:

The objective of the course is to impart the knowledge and understanding of causes and effects of air pollution and their controlling mechanisms. The course will provide a deeper understanding of air pollutants, pollution inventory and modelling. The course also imparts knowledge on the impacts of air pollution on different aspects such as policy, human health and various contemporary technological innovation for betterment of air quality.

Course Outcome:

• Week 1 : Air Pollution: Introduction and Impacts of air pollution on human health, vegetation, animals, building materials, structures, and atmosphere, soil and water bodies.
• Week 2 : Sources, classification and formation/transformation of air pollutants: Meteorology and Atmospheric Stability.
• Week 3 : Lapse Rate, Plume Behaviour, and Air Quality Monitoring, Air Quality Index (AQI)
• Week 4 : Air Quality Modelling, Gaussian dispersion models: point, line and area source models
• Week 5 : Emissions Inventory: Transport, Industrial, Agricultural, Residential and Commercial sectors
• Week 6 : Application of Remote sensing/Satellite based data in emission inventory, Source apportionment using receptor modelling.
• Week 7 : Indoor air pollution: sources, types and health impacts. Sampling, assessment and evaluation of Indoor air quality.
• Week 8 : Global and regional environmental issues of air pollution: Ozone depletion, Climate change, Global warming, Acid rain.
• Week 9 : Air pollution control devices, equipment and their design.
• Week 10 :  Air pollution emission standards, National and international policies, acts, rules and regulations.
• Week 11 : Emerging technologies and strategies to mitigate air pollution, Current challenges and way forward.
• Week 12 : Lab-based measurements of air pollutants.

CRITERIA TO GET A CERTIFICATE:

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

If you have not registered for exam kindly register Through https://examform.nptel.ac.in/