JNTU Kakinada B-Tech 4-1 AIR POLLUTION AND CONTROL R13 March 2018 Question Paper

IV B.Tech I Semester Supplementary Examinations, February/March – 2018
AIR POLLUTION AND CONTROL (Civil Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Write briefly on Climate Change. [3]
b) Explain briefly on Automobile pollution. [4]
c) Discuss on Wind forces. [3]
d) Write on Stack Monitoring for flue gases. [4]
e) Discuss on Cyclone separators. [4]
f) What are the Environmental friendly fuels? [4]

PART ?B (3×16 = 48 Marks)
2. a) Classify air pollutants into different categories and indicating their sources. [8]
b) What is meant by smog? Discuss its effects? [8]

3. a) What are the effects of air pollutants on plants? [8]
b) Explain with examples how air pollution affects building materials. [8]

4. a) State the Air Quality Standards adopted by EPA. [8]
b) Explain the procedure of monitoring of SPM and list air quality standards. [8]

5. a) What are the applications of electro static precipitators in various industries? [8]
b) A cylindrical electrostatic precipitator of diameter 0.4 m is used for separating
pulverized coal flyash particles from a furnace gas stream. If the volumetric flow
rate of the gas is 0.05 m
3
/sec, what will be the length of precipitator for obtaining
a collection efficiency of 99.9%. What percent change in electrode collection
area is required to increase the collection efficiency from 99.9 to 99.95%.

[8]

6. a) What do you understand by thermodynamics kinetics of air pollution? [8]
b) Write a note on control production of combustion. [8]

7. a) Explain the general method of control of SOx emission. [8]
b) Explain dry methods of removal and re cycling of SOx. [8]

Code No: RT41017
Set No. 1
R13
1 of 1