Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2171302 Air Pollution Control And Management Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2171302 Date:19/01/2021
Subject Name:Air Pollution Control and Management
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Marks
Q.1 (a) Differentiate between Ambient air Quality standard and Emission
03
Standard.
(b) Enlist the particulate control mechanism and explain any one.
04
(c) Explain the construction and working of Electrostatic precipitator with neat
07
and clean diagram.
Q.2 (a) Explain Gravity Settler as a particulate control equipment.
03
(b) Explain "why tall stack dispersion method for SOX control is not used?"
04
(c) Write a short note on turbojet engine.
07
Q.3 (a) Explain desulphurization of fuel as a pre combustion control method for
03
SOX control.
(b) Which particulate control equipment is best suited to control particulate
04
matters emitted from coal based thermal power plant. Justify your answer.
(c) Explain thermodynamics of sulfure oxide formation.
07
Q.4 (a) Write a brief note on "Carbon adsorption method" for SOX control.
03
(b) Explain various mechanism of formation of Nitrogen oxides.
04
(c) Enlist the pre combustion control mechanism for NOX control and explain
07
any one in detail.
Q.5 (a) How engine design changes to reduce automobile pollution.
03
(b) Write a brief note on " Hydro carbon Reactivity"
04
(c) Write a short note on " VOC Control mechanism"
07
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Q.6 (a) Define the following terms (i) Stoichiometric Air-Fuel Ratio. (ii) Lean
03
mixture (iii) Rich Mixture.
(b) Explain the role of oxides of nitrogen in photooxidation.
04
(c) List down the various air pollution episodes and explain any one in detail.
07
Q.7 (a) List down the various air pollutants emitted from Aluminum industry.
03
(b) Explain stratified charge engine.
04
(c) Identify the various sources of air pollution from Mineral processing
07
industry and also suggest the most suited control measures.
Q.8 (a) List down the various air pollutants emitted from cement industry.
03
(b) Differentiate between selective and non selective catalytic reduction for
04
NOx Control.
(c) Identify the various sources of air pollution from Fertilizer processing
07
industry and also suggest the most suited control measures.
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This post was last modified on 04 March 2021