Air Pollution -4

1. Which of the following is used in ceramic industries

A Electrostatic Precipitators

B Dynamic precipitator

C Spray Tower

D Wet cyclonic scrubber

Answer: B

2. Which of the following removes both gaseous and particulate contaminants

A Venturi Scrubbers

B Gravitational Settling Chambers

C ESP

D Wet Scrubbers

Answer: A

3. Which of the following is the absorption unit?

A Cyclone collector

B Plate tower

C Gravitation settling chamber

D Dynamic precipitator

Answer: B

4. Which of the following is not a part of adsorption unit?

A Packed towers

B Multiple fixed bed

C Fluidized bed

D Moving bed

Answer: A

5. Which of the following is a bulk phenomena?

A Physical adsorption

B Chemical adsorption

C Absorption

D Sorption

Answer: C

6. Which of the following is not type of air pollution cotrol by process change

A Substitution of raw material

B Control equipment

C Replacement of process equipment

D Modification of process itself

Answer: B

7. Objective of using Control Equipment is

A Prevention of Nuisance

B Elimination of health hazards

C Improvement of product quality

D All of the above

Answer: D

8. The function of automobile catalytic converter is to control emission of

A CO2 & H

B CO & H

C CO & CO2

D CO & NO2

Answer: B

9. Stokes Law is applicable if

A (h/Vs)=(L/V)

B (V/L)=(h/Vs)

C (Vs/h)=(V/L)

All of the above

Answer: A

10. In design of Cyclone

A Bc= Dc/2

B Bc=Dc/4

C Bc=Dc/8

D Bc=Dc/5

Answer: B

11. Cyclones can be used in

A Paper & Pulp Mills

B Textile Industries

C Cement Manufacturing

D All of the above

Answer: D

12. The control equipment that utilises electrical energy directly to assist in removal of particulates matter is

A Cyclone collector

B Fabric Filter

C Electrostatic Precipitator

D Wet Collectors

Answer: C

13. Which of the following is not a principle of Wet Scrubbers

A Absorption

B Impingement

C Interception

D Diffusion

Answer: A

14. Which of the following is type of wet scrubbers

A Venturi Scrubbers

B Spray Tower

C Cyclone Scrubbers

D All of the above

Answer: A

15. Gaseous Pollution can be control by

A Absorption

B Adsorption

C Recovery System

D All of the above

Answer: D

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