Download GTU BE/B.Tech 2019 Winter 7th Sem New 2171302 Air Pollution Control And Management Question Paper

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BE - SEMESTER EXAMINATION

Subject Code: 2171302

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Subject Name: Air Pollution Control and Management

Time: 10:30 AM TO 01:00 PM

Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.

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3. Figures to the right indicate full marks.

Q.1

1. (a) Discuss the importance of Air Quality Index. (MARKS 03)
2. (b) Write a brief note on alternative fuels. (MARKS 04)
3. (c) Write a short note on “Air pollution Episodes”. (MARKS 07)

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Q.2

1. (a) Enlist the various sources of VOC emission. (MARKS 03)
2. (b) List down the various routes for NOx formation during the combustion process. (MARKS 04)
3. (c) Discuss various types of automobile emission and its contribution to overall vehicular pollution. (MARKS 07)

OR

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1. (c) What is Photochemical smog? Explain the effects of photochemical smog in brief. (MARKS 07)

Q.3

1. (a) Discuss lime scrubbing throwaway process for removing SOx from flue gas. (MARKS 03)
2. (b) Explain the following process in brief for NOx control (1) Air Staging (i1) Fuel staging (MARKS 04)
3. (c) “By reducing the combustion temperature during the combustion process will effectively reduce the favorable condition for NOx formation.” Above statement is true? Give your comments. (MARKS 07)

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OR

1. (a) Write a brief note on selective catalytic reduction (MARKS 03)
2. (b) Differentiate between fuel desulfurization methods & flue gas desulfurization methods for prevention and control of SOx pollution. (MARKS 04)
3. (c) Write a short note on “ Regenerative process for SOx control” (MARKS 07)

Q.4

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1. (a) Make a list of equipments used to control particulate matter along with their working principles. (MARKS 03)
2. (b) Explain the construction of Electrostatic precipitator. (MARKS 04)
3. (c) With neat sketch explain the construction & working principle of cyclonic scrubber. (MARKS 07)

OR

1. (a) Enlist the pre-combustion and post combustion methods of NOx pollution control. (MARKS 03)

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2. (b) Explain how gaseous pollutants are controlled using principle of adsorption and absorption. (MARKS 04)
3. (c) Write a detail note on gravity settling chamber. How its efficiency can be improved? (MARKS 07)

Q.5

1. (a) Write a brief note on turbojet engine. (MARKS 03)
2. (b) Explain the phenomena of Ozone formation in the atmosphere. (MARKS 04)

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3. (c) Identify the various sources pollution emitted from the metal industry and suggest the suitable pollution prevention/control measures (MARKS 07)

OR

1. (a) Write a brief note on rotary combustion engines. (MARKS 03)
2. (b) Write a brief note on Catalytic Converter. (MARKS 04)
3. (c) Write brief note on control of air pollution in the coal base thermal power plant with neat sketch (MARKS 07)

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Date: 23/11/2019

Total Marks: 70