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Reg No
Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SECOND SEMESTER M.TECH DEGREE EXAMINATION, APRIL 2018
07 Thrissur Cluster
Civil Engineering
Environmental Engineering
07CE6104 Air Quality Management Meteorology
Time: 3 hours Max. Marks: 60
Answer all six questions. Part of each question is compulsory.
Answer either part or part of each question
Q.no. Module 1 Marks
1a Explain the economic effects of air pollution 4
Answer b or c
b Explain briefly any two removal methods of gaseous pollutants. 5
c CO is present in standard atmospheric air at a concentration of 40ppm.
Compute the mass concentration for the CO concentration in
atmosphere.
5
Q.no. Module 2 Marks
2a
Explain the causes and effects of inversion in the atmosphere.
4
Answer b or c
b
Explain the role of meteorological elements in the dispersion of air
pollutants in the atmosphere
5
c
Calculate the plume rise, if the stack exit velocity is 15 m/sec, inner
diameter of the stack is 26m,with the following data
Atmospheric pressure=1012mb
Stack gas temperature=4200K
Ambient air Temperature=2970K
Wind speed =3m/sec
.
5
Q.no. Module 3 Marks
3a Differentiate grab sampling and freeze-out sampling. 4
Answer b or c
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b
Describe the method of sampling suspended particulates by high
volume filtration.
.
5
c Explain the methods for the analysis of carbon monoxide. 5
Q.no. Module 4 Marks
4a What are the basic mechanisms for removing particulate matter from
gas stream?
4
Answer b or c
b
Compare settling chambers and cyclones with reference to the removal
of particulate matter
5
c Explain how particulate matter is removed from gas stream using
cyclone separator.
5
Q.no. Module 5 Marks
5a What are the factors affecting the selection of scrubbing medium. 5
Answer b or c
b Explain the functioning of electrostatic precipitator. 7
c Derive the equation for efficiency in terms of volume of precipitator 7
Q.no. Module 6 Marks
6a . Explain the sources of noise pollution and their control methods. 5
Answer b or c
b Explain the methods used for the control of hydrocarbons. 7
c What are the modifications of operating conditions for the control of
Nitrogen oxides
7