EVS/IV/EC/07 Student's Copy
2 0 1 8
CBCS
4th Semester
ENVIRONMENTAL SCIENCE
Paper EVS-401
Environmental Monitoring and Control Technology
Full Marks 75
Time 3 Hours
PART A—OBJECTIVE
Marks 25
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 10
Tick the correct answer in the brackets provided 1×10=10
1. Which of the following is a secondary air pollutant?
Carbon dioxide
Carbon monoxide
Ozone
Sulphur dioxide
2. Air pollution from automobiles can be controlled by fitting
cyclone separator
electrostatic precipitators
catalytic converter
web scrubbers
/350 1 Contd.
3. Dissolved oxygen is estimated by
acid-base titration method
complexometric titration method
Winkler's method
Nelson's method
4. The permissible maximum concentration of total hardness in drinking
water is
100 mg/L
150 mg/L
200 mg/L
250 mg/L
5. Organic farming is the method of raising crops through the uses of
biofertilizer
manures
resistant varieties
All of the above
6. Degradation of organic wastes by using earthworms is called
compost bedding
vermicomposting
humus
None of the above
7. Which of the following groups of plants can be used as bioindicators of
air pollution?
Ferns
Lichens
Liverworts
Dodder
8. The use of organisms to breakdown and thereby detoxify dangerous
chemicals in the environment is called
bioventing
bioremediation
biomagnification
None of the above
EVS/IV/EC/07/350 2 Contd.
9. The rules pertaining to solid waste management is
Municipal Solid Waste (Management and Handling) Rules,
2000
Water Act, 1974
Environmental Protection Act, 1986
None of the above
10. The waste which cannot be recycled or reused, are suitable for
landfilling
incineration
Both and
None of the above
SECTION—B
Marks 15
Write short notes on the following taking one from each unit 3×5=15
Unit—I
1. Sampling of air pollutants
2. Air quality standards
Unit—II
3. Water quality parameters
4. Standards for drinking water
Unit—III
5. Soil sampling
6. Organic farming
Unit—IV
7. Concept of environmental monitoring
8. Scope of phytoremediation
Unit—V
9. Characteristics of solid waste
10. Institutional framework of solid waste management
EVS/IV/EC/07/350 3 Contd.
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
1. Define air pollution. Describe in detail the different methods for monitoring
of air pollutants. 2+8=10
OR
Give detailed accounts on the following 5+5=10
Electrostatic precipitators
Scrubbers
2. Explain in detail the wastewater treatment process with the help of a
suitable diagram. Add a note on the conservation and management of
water. 8+2=10
OR
Write short notes on the following 5+5=10
Purification of water for drinking purposes
Physico-chemical analysis of water
3. What is vermicomposting? Describe the different steps involved in a
vermicomposting process. 2+8=10
OR
Give detailed accounts on the following 5+5=10
Composting
Physical soil parameters
4. What is bioremediation? Describe different types of bioremediation along
with its constraints as well as advantages. 2+8=10
OR
Give detailed accounts on the following 5+5=10
Bioindicators
Biological monitoring programme
5. Define solid waste. What are the major types of waste? Discuss the
functional elements of solid waste management.
OR
Give detailed accounts on the following 5+5=10
Hazardous waste
Strategies for biomedical waste management