# NPTEL Air Pollution and Control Assignment 5 Answers 2023

#### ByBrokenprogrammers

Feb 17, 2023

Hello Learners, In this Post, you will find NPTEL Air Pollution and Control Assignment 5 Week 5 Answers 2023. All the Answers are provided below to help the students as a reference don’t straight away look for the solutions.

###### NPTEL Air Pollution and Control Assignment 6 Answers Join Group👇

Note: First try to solve the questions by yourself. If you find any difficulty, then look for the solutions.

## NPTEL Air Pollution and Control Assignment 5 Answers 2023:

#### Q.1. The equation used in the MOBILE model for estimating the hot running emissions per unit distance (ex ) in a freeway and arterials is given as (where, ex = Emission in per unit distance; SCF = Speed Correction factor; BER = Basic emission rate; EO = Emission offset):

• ex = SCF (BER + EO)
• ex = SCF (BER – EO)
• ex = SCF (BER x EO)
• ex = SCF (BER / EO)

#### Q.2. Which of the following limitations is/are associated with the EMPA i,e., Vehicular Emission Inventory model

I.  Do not include the dynamic behavior of the engine
II.  Inclusion of a catalyst model should lead to improvements in the existing model
III.  It has been developed only for Light Duty Vehicle

• i
• i & ii
• i & iii
• i, ii & iii

#### Q.3. The GAINS model is an integrated assessment model dealing with costs and potential for air pollution control and greenhouse gas (GHG) mitigation and assessing policy interactions. The GAINS stands for

• Greenhouse Gas and Air Pollution Information and Simulations
• Greenhouse Gas and Air Pollution Interactions and Synergies
• Greenhouse Gas and Air Pollutants Interactions and Synergies
• Greenhouse Gas and Air Pollutants Information and Simulations

• Heavy metals
• PM
• VOC
• NH3

• N2O
• CO2
• CH4
• O3

#### Q.6. Which of the following equations is used to estimate the CH4 emissions from enteric fermentation?

• Emission_CH4 = ∑ (Number of animalsj – EFCH4)
• Emission_CH4 = ∑ (Number of animalsj + EFCH4)
• Emission_CH4 = ∑ (Number of animalsj x EFCH4)
• Emission_CH4 = ∑ (Number of animalsj / EFCH4)

#### Q.7. Which of the following sectors covers emissions from the activities such as cooking, heating, and captive power generation in hotels or offices, shopping malls, hospitals, and crematoriums.

• Commercial sector
• Agriculture sector
• Industrial sector
• Transport sector

#### Q.8. The general equation for calculating the emissions from the residential or commercial sector is the product of:

• Population and emission factor
• Fuel consumption and emission factor
• Fuel consumption factor and duration
• Fuel consumption and Population

#### Q.9. What are the applications of remote sensing in air quality management?

I. Monitoring of air pollution data II. Validation of models III. Identification of airsheds IV. Demonstration of episodic pollution

• I,II & IV
• II & III
• I & II
• I, II, III & IV

#### Q.10.________________ expresses the quantity of light removed from a beam by scattering or absorption by aerosols during its path through the atmosphere.

• Aerosol Optical Dispersion
• Aerosol Optical Diffusion
• Aerosol Optical Depth
• Aerosol Optical Detection
##### NPTEL Air Pollution and Control Assignment 5 Answers Join Group👇

Disclaimer: This answer is provided by us only for discussion purpose if any answer will be getting wrong don’t blame us. If any doubt or suggestions regarding any question kindly comment. The solution is provided by Brokenprogrammers. This tutorial is only for Discussion and Learning purpose.

#### 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/