This set of MCQ(multiple choice questions) focuses on the NPTEL Air Pollution and Control Week 7 Solutions
Course layout
Week 0: Assignment Solutions
Week 1: Assignment Solutions
Week 2: Assignment Solutions
Week 3: Assignment Solution
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 7 Solutions” contains 10 questions.
NPTEL Air Pollution and Control Week 7 Solutions
Q1. Which of the following health effects may show up shortly after a single exposure to an air pollutant?
a) Short-term health effect
b) Long-term health effect
c) Intermediate health effect
d) Extreme health effects
Answer: a)
Q2. Which of the following pollutant’s exposure causes mesothelioma, a rare form of cancer that is found in the thin lining of the lung, chest, abdomen and heart.
a) Ozone
b) VOCs
c) Carbon monoxide
d) Asbestos
Answer: d)
Q3. Biomarkers such as nicotine and cotinine in the saliva, blood and urine are used to detect the recent (within 24 hours) exposure to
a) Secondhand smoke
b) Asbestos
c) Pesticides
d) Lead
Answer: a)
Q4. A ________ samplers used for assessment of NO2 are low sensitivity samplers suitable for long term monitoring.
a) Adsorbent
b) Badge type
c) Diffusive
d) Tube type
Answer: d)
Q5. Which of the following indoor air modelling programs/tools developed to assist in understanding indoor air pollution was NOT developed by EPA
a) Indoor Air Quality and Inhalation Exposure (IAQX)
b) Indoor Semi-volatile Organic Compounds (i-SVOC)
c) Parameters (PARAMS) Program Version 1.1 for indoor emission source modelling
d) Ventilation in Closed and Partially Confined Areas (VENTCLIM)
Answer: d)
Q6. Match the suitable options for types of mixing (List – I) with their graphical representation (List – II) that occur within the enclosure in a box model for indoor air quality modelling and choose the correct option given as below:
a) P-2, Q-1, R-3, S-4
b) P-2, Q-1, R-4, S-3
c) P-1, Q-2, R-4, S-3
d) P-1, Q-2, R-3, S-4
Answer: c)
Q7. The HVAC system is used to improve indoor air quality, wherein HVAC refers to
a) Higher Ventilation, and Air-Circulation
b) Higher Ventilation, and Air-Conditioning
c) Heating, Ventilation, and Air-Conditioning
d) Heating, Ventilation, and Air Circulation
Answer: c)
Q8. Which of the following air cleaning technologies targets to clean microbes in an indoor environment.
a) Fibrous filter media
b) Ultraviolet germicidal irradiation (UVGI)
c) Adsorbent media
d) Chemisorbent media
Answer: b)
Q9. In the case study entitled “personal exposure to fine particles”; which of the following micro-environment was NOT included in the study.
a) Houses
b) Workplaces
c) High traffic areas
d) Hospital zones
Answer: d)
Q10. In the case study entitled “personal exposure to fine particles”; a palm-sized optical sensor was used specifically designed to give the mass concentration of _________ (in μg/m3).
a) PM2.5
b) Carbon monoxide
c) VOCs
d) Heavy metals
Answer: a)
Previous Year – NPTEL Air Pollution and Control Week 7 Solutions
Q1. CO can cause people to become drowsy and suffocated when it binds to
a) Hemoglobin
b) White blood cells
c) Plasma
d) Alveolar receptors
Answer: a) Hemoglobin
Q2. Which of the following indoor pollutants can contribute to the development of acute or chronic bronchitis?
a) CO
b) PM
c) NO2
d) Radon
Answer: c) NO2
Q3. _____________ poses health risks to children with asthma as it can prompt an asthma attack or make asthma symptoms more severe.
a) Asbestos
b) Secondhand smoke
c) Lead
d) CO
Answer: b) Secondhand smoke
Q4. Mesothelioma, a rare form of cancer is caused due to exposure to
a) Asbestos
b) Carbon monoxide
c) Formaldehyde
d) Nitrogen dioxide
Answer: a) Asbestos
Q5. Which of the following indoor air quality modelling techniques is widely applied when a moving source occurs within a confined space?
a) Box model
b) Analytical tools
c) Advection model
d) All of the above
Answer: d) All of the above
Q6. Which of the following is NOT a way to prevent radon gas in homes?
a) Sealing cracks
b) Ventilation
c) Air fresheners
d) Plastic lining in crawlspace
Answer: d) Plastic lining in crawlspace
Q7. An______________ will generally adsorb molecules for which it has the greatest affinity and will allow other molecules to remain in the airstream.
a) Adsorbate
b) Absorption
c) Adsorbent
d) Absorbent
Answer: c) Adsorbent
Q8. Which of the following air cleaners utilizes a high-voltage discharge to ionize incoming gases, breaking their chemical bonds and chemically altering them?
a) Non-plasma air cleaner
b) Ozone generator
c) Plasma air cleaner
d) Photocatalytic Oxidation (PCO)
Answer: c) Plasma air cleaner
Q9. Which of the following air filters typically has a Minimum Efficiency Reporting Value of 1 to 4 and thus has very low removal efficiency for most particle sizes?
a) Flat air filter
b) Pleated filter
c) HEPA filter
d) Extended surface filter
Answer: a) Flat air filter
Q10. Relative humidity can be measured using
a) Hygrometer
b) Manometer
c) Thermometer
d) Barometer
Answer: a) Hygrometer
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