Chapter 21 - Ventilation And Pollution Control

Question 1

What is an environmental pollutant?

Answer 1

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Question 2

What are the four general approaches to pollution control?

Answer 2

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Question 3

What is the preferred approach to pollution control?

Answer 3

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Question 4

What organization sets rules for handling dangerous materials on the workplace?

Answer 4

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Question 5

What types of equipment are used to control pollutants?

Answer 5

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Question 6

Describe the primary treatment of waste water

Answer 6

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Question 7

Describe the secondary treatment of waste water

Answer 7

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Question 8

What does advanced treatment of waste water remove?

Answer 8

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Question 9

Why are extremely small air-borne particles very dangerous?

Answer 9

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Question 10

What four techniques are used to remove particulate matter from air?

Answer 10

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Question 11

What is the size of particulates in oil smoke?

Answer 11

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Question 12

What size particulates will cloth collectors remove?

Answer 12

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Question 13

How is sulphur dioxide removed from boiler glue gas?

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Question 14

What are sources of nitrogen oxide pollution?

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Question 15

What mechanisms are used to collect solid pollutants from air?

Answer 15

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Question 16

What special problems are present with wet particulate collectors?

Answer 16

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Question 17

Describe the operating principles of gravity settling chambers

Answer 17

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Question 18

What are the advantages and disadvantages of gravity settling chambers?

Answer 18

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Question 19

Describe the operating principles of gravity spray towers

Answer 19

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Question 20

Describe the operating principles of a cyclone separator

Answer 20

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Question 21

What is the advantage of a multi-clone collector in comparison to a single large capacity unit?

Answer 21

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Question 22

Describe the operating principles of centrifugal spray scrubbers

Answer 22

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Question 23

Describe the operating principles of a cloth filter (baghouse) system

Answer 23

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Question 24

What are the applications for baghouse filters?

Answer 24

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Question 25

Are baghouse filters usually regarded as primary or secondary filters?

Answer 25

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Question 26

What are the advantages and the disadvantages of the baghouse system?

Answer 26

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Question 27

Describe three types of baghouse systems

Answer 27

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Question 28

Describe two methods of reconditioning the bags

Answer 28

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Question 29

Describe the operating principles of an electrostatic precipitator

Answer 29

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Question 30

How do wet and dry electrostatic precipitators collect particulate matter?

Answer 30

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Question 31

Describe the operating principles of dry and wet dynamic precipitators

Answer 31

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Question 32

Describe the operating principles of a Venturi scrubber

Answer 32

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Question 33

What are the advantages and disadvantages of Venturi scrubbers?

Answer 33

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Question 34

Describe the operating principles of s wetted filter scrubber

Answer 34

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