NPTEL Air Pollution and Control Week 3 Assignment Answers 2025
1. Which of the following factors is NOT associated with the plume properties?
A. Exit velocity
B. Turbulence
C. Atmospheric Stability
D. Wind Speed Select the correct option:
- A, & B
- A, C, D
- B, C, D
- A, B, C, D
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2. Which of the following plume types exists under the neutral lapse rate when wind speed is greater than 32 km per hour?
- Looping
- Fanning
- Coning
- Lofting
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3. During which time is the height of the Mixed Layer typically the highest?
- Early morning in winter
- Late afternoon in summer
- Late evening in spring
- Midnight during fall
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4. What causes turbulence in the Mixed Layer?
- Gravitational waves
- Decreasing atmospheric pressure
- Ozone formation in the stratosphere
- Solar heating and strong winds
Answer :-
5. Which of the following is a component of the Atmospheric Boundary Layer?
- Tropospheric layer
- Stratospheric layer
- Stable boundary layer
- Thermospheric layer
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6. What is one of the primary objectives of (National Air Quality Monitoring Programme) NAMP?
- Determining status and trends of ambient air quality
- Monitoring biodiversity loss
- Measuring groundwater quality
- Studying agricultural productivity
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7. What meteorological parameters are integrated with air quality monitoring under NAMP?
- Wind speed, wind direction, relative humidity (RH), and temperature
- Monitoring biodiversity loss
- Measuring groundwater quality
- Studying agricultural productivity
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8. Which of the following is an outcome of eclipsing in air quality indices?
- Pollution levels are accurately reported
- Air quality is overestimated
- Air quality is underestimated
- All pollutants are equally represented
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9. If an air pollution index shows ambiguity, how is pollution represented?
- Accurately and without bias
- Underestimated due to eclipsing
- Overestimated due to minor deviations in a single pollutant
- Not represented at all
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10. Which of the following is considered a key component in modeling parameters for air quality?
- Soil composition
- Emission sources
- Traffic patterns only
- Population density
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