NPTEL Air Pollution and Control Week 6 Solutions

This set of MCQ(multiple choice questions) focuses on the NPTEL Air Pollution and Control Week 6 Solutions

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Week 0: Assignment Solutions
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Week 2: Assignment Solutions
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Week 4: Assignment Solutions
Week 5: Assignment Solutions
Week 6: Assignment Solutions
Week 7: Assignment Solutions
Week 8: Assignment Solutions

Week 9: Assignment Solutions
Week 10: Assignment Solutions
Week 11: Assignment Solutions
Week 12: Assignment Solutions

NOTE: You can check your answer immediately by clicking show answer button. Moreover, this set of “NPTEL Air Pollution and Control Week 6 Solutions” contains 10 questions.

NPTEL Air Pollution and Control Week 6 Solutions

Q1. What is the kerb site location? 

a) Side of the water body
b) Side of the pavement 
c) Outside the main city
d) Away from pavement 

Answer: b) Side of the pavement 

Q2. Which one of the following models is used in the bottom-up approach?

a) Positive mass factorization (PMF) model
b) Chemical mass balance (CMB) model
c) Lagrangian model
d) Principal Components Analysis

Answer: c) Lagrangian model

Q3. Top-down approach is also called 

a) Receptor-based method
b) Source-based method
c) Emission inventory-based method
d) Dispersion based method

Answer: a) Receptor-based method

Q4. The fundamental principle of receptor modeling is

a) Mass conservation 
b) Energy conservation 
c) Normal distribution
d) Conservation of momentum 

Answer: a) Mass conservation 

NPTEL Air Pollution and Control Week 6 Solutions

Q5. The main characteristics of receptor models is/are

a) Chemical mass balance principle
b) Based on the solution of multilinear equations 
c) Do not depend on emission inventories
d) All the above

Answer: d) All the above

Q6. Match List-I with List-II  and select the correct answer using the codes given below the lists:

             List I                                               List II
A. Organic carbon (OC)             1. High-performance liquid chromatography (HPLC)
B. Inorganic elements               2. Thermal optical methods
C. Organic compounds             3. Linear regression
D. Analytical uncertainty           4. Inductively coupled plasma mass spectrometry (ICPMS)

a) A-2, B-1, C-4, D-3
b) A-2, B-4, C-1, D-3
c) A-1, B-3, C-2, D-4
d) A-1, B-3, C-4, D-2

Answer: b) A-2, B-4, C-1, D-3

Q7. Which of the following is not the cause of Indoor Air Pollution?

a) Poorly designed ventilation systems
b) Well-designed ventilation systems
c) Indoor sources of air pollution
d) Outdoor sources of air pollution

Answer: b) Well-designed ventilation systems

Q8. Which of the following indoor air pollutants is responsible for irritation to the skin?

a) SO2
b) NOx
c) RSPM (Respirable Suspended Particulate Matter)
d) CO

Answer: b) NOx

Q9. What is the source of asbestos in the indoor environment?

a) Building maintenance
b) Glue
c) Insecticides 
d) Fertilizers 

Answer: a) Building maintenance

NPTEL Air Pollution and Control Week 6 Solutions

Q10. Which of the following are the biological indoor pollutants?

a) Mattresses
b) Pitchblende
c) Disinfectants
d) Uranium

Answer: a) Mattresses

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