Air Pollution-3

1. Which of the following is not causes of indoor air pollution

A Improper Ventilation

B Absorption

C Fluorescent lamps

D Use of synthetic materials

Answer: B

2. Which of the following is not type of Electromagnetic pollution

A Tube lights

B Carpets

C Dust

D Air Conditioning

Answer: B

3. Electromagnetic Pollution is responsible to cause disease like____

A Brain Cancer

B Leukemia

C Bone Marrow Damage

D All above mentioned

Answer: D

4. The pulmonary section of the respiratory tract consists of ___________

A Nose and mouth as well as down till epiglottis and larynx

B Bronchi down till the end of bronchiole

C Respiratory bronchiole, alveoli and alveoli 

D Alveoli ducts and alveoli

Answer: C

5. Which of the following is used for Disinfection

A UV Radiation

B Triethylene 

C Application of oil to floors

D All above 

Answer: D

6. Particles of what size are filtered by the nasal passage?

A >10micrometre

B >500 micrometre

C >1 mm

D >5 micrometre

Answer: A 

7. Which of the following is not Air Cleaning System

A Adsorption

B Disinfection

C Lighting

D Plantation

Answer: A

8. The system in which fresh air is blown into the room by centrifugal fans so as to create positive pressure and displace the vitiated air is

A Exhaust Ventilation

B Plenum Ventilation

C Balanced Ventilation

D Air Conditioning

Answer: B

9. Which of the following are Indoor Air Plants

A Peace Lilly

B Areca Palm

C Gerbera Daisy

D All above mentioned

Answer: D

10. Odour can be defined as

A Perception of smell

B Bad Smell

C Sweet Smell

D Complex Smell

Answer: A

11. Odorous substance Mercaptans is released from

A Petroleum Industry

B Paper and Pulp Mill

C Cotton Industry

D Tanneries

Answer: B

12. Measurement of Odour can be done by

A Osmometer

B Determination of Threshold 

C Determination of type and intensity of atmospheric odur

D All above mentioned

Answer: D

13. The relationship between odour intensity and concentration can be expressed as

A P=L Log S

B l=P Log S

C S= P Log L

D P=S Log L

Answer: A

14. Odour can be control by

A Absorption

B Adsorption

C Combustion

D All above mentioned

Answer: D

15. Certain pairs of odours in appropriate relative concentration are mixed together so that intensity of each odour is diminished is the phenomenon of

A Odour Masking

B Odour Counteraction

C Neutralization

D Absorption

Answer: B

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