EVSC/IV/04 Student's Copy
2 0 1 8
Pre-CBCS
4th Semester
ENVIRONMENTAL SCIENCE
Paper EVS-401
Environmental Monitoring and Control Technology
Full Marks 55
Time 2½ hours
PART A—OBJECTIVE
Marks 20
The figures in the margin indicate full marks for the questions
Answer all questions
SECTION—A
Marks 5
Tick the correct answer in the brackets provided 1×5=5
1. Problem of solid waste can be reduced through
recycling
lesser population
composting
All of the above
2. Which of the following techniques operates in a manner similar to a house
vacuum cleaner?
Incineration
Adsorption
Bag filter
None of the above
/417 1 Contd.
3. Dissolved oxygen in water is estimated by
double-trap method
complexiometric method
Winkler's method
Nelson method
4. Which of the following supplies energy and body-building materials for soil
microorganisms?
Nitrogen
Phosphorus
Potassium
Organic carbon
5. Lichens can be used as
water pollution indicator
air pollution indicator
soil pollution indicator
All of the above
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Elements of waste management
2. Scrubbers
3. Water quality parameters
4. Benefits of vermicomposting
5. Microorganism as bioindicator
EVSC/IV/04/417 2 Contd.
PART B—DESCRIPTIVE
Marks 35
The figures in the margin indicate full marks for the questions
Unit—I
1. Define solid waste. What are the characteristics of solid waste? How can
solid waste be collected and disposed?
OR
Give accounts of the following 3½+3½=7
Hazardous waste management
Concept of biomedical waste
Unit—II
2. Explain in detail the types of monitoring of air pollution. 7
OR
Give accounts of the following 3½+3½=7
Catalytic converter
Electrostatic precipitators
Unit—III
3. Discuss in detail the sampling and analysis of water. 7
OR
Discuss in detail the purification process of water. 7
EVSC/IV/04/417 3 Contd.
Unit—IV
4. What is organic farming? Discuss the different sources of organic matter
and nutrients in soil.
OR
Briefly describe the different parameters of soil analysis. 7
Unit—V
5. What is environmental monitoring? Discuss in detail the biological
monitoring programs.
OR
Discuss the following 3½+3½=7
Bioremediation
Phytoremediation