Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2150603 Environmental Engineering Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150603 Date:16/11/2018
Subject Name:Environmental Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define BOD. What are the limitations of BOD test? 03
(b) Find 3 day 30 ? C BOD of a sewage sample whose 2 day 20 ? C BOD is 150 mg/lit. 04
(c) Explain the growth pattern of microbes based upon mass. 07
Q.2 (a) Explain sanitary significance of nitrate, fluoride and iron and manganese from
drinking water point of view.
03
(b) Give the classification of impurities present in water. 04
(c) Explain different types of water demands that are to be considered while
designing the water supply system of a town.
07
OR
(c) Enlist different methods of population forecasting. Find out the population of
2031 and 2041 using the data given below by any three methods of population
forecasting:
Year Population
1981 45800
1991 57000
2001 68050
2011 75000
07
Q.3 (a) What are the objective of Water (Prevention and Control of Pollution Act -1974) 03
(b) Derive the first stage BOD equation with usual notations. 04
(c) Explain the factors affecting self purification capacity of the river. 07
OR
Q.3 (a) Explain the self purification process of the stream. 03
(b) Write short note on sewage sickness. 04
(c) What is house drainage system? State the principles of house drainage system 07
Q.4 (a) Give classification of source of air pollution. 03
(b) Give the classification of air pollutants. 04
(b) Explain different types of plumbing systems used for house drainage with
required sketch.
07
OR
Q.4 (a) What is transfer station? Why it is needed? 03
(b) Give the classification, composition and characteristics of municipal solid waste. 04
(b) Enumerate different air pollution control devices and explain the function of
electrostatic precipitator in detail.
07
Q.5 (a) Explain the procedure to determine temporary and permanent hardness of water. 03
(b) Explain sanitary land filling in detail with its respective merits and demerits. 04
(c) Explain different measures to control noise pollution 07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150603 Date:16/11/2018
Subject Name:Environmental Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define BOD. What are the limitations of BOD test? 03
(b) Find 3 day 30 ? C BOD of a sewage sample whose 2 day 20 ? C BOD is 150 mg/lit. 04
(c) Explain the growth pattern of microbes based upon mass. 07
Q.2 (a) Explain sanitary significance of nitrate, fluoride and iron and manganese from
drinking water point of view.
03
(b) Give the classification of impurities present in water. 04
(c) Explain different types of water demands that are to be considered while
designing the water supply system of a town.
07
OR
(c) Enlist different methods of population forecasting. Find out the population of
2031 and 2041 using the data given below by any three methods of population
forecasting:
Year Population
1981 45800
1991 57000
2001 68050
2011 75000
07
Q.3 (a) What are the objective of Water (Prevention and Control of Pollution Act -1974) 03
(b) Derive the first stage BOD equation with usual notations. 04
(c) Explain the factors affecting self purification capacity of the river. 07
OR
Q.3 (a) Explain the self purification process of the stream. 03
(b) Write short note on sewage sickness. 04
(c) What is house drainage system? State the principles of house drainage system 07
Q.4 (a) Give classification of source of air pollution. 03
(b) Give the classification of air pollutants. 04
(b) Explain different types of plumbing systems used for house drainage with
required sketch.
07
OR
Q.4 (a) What is transfer station? Why it is needed? 03
(b) Give the classification, composition and characteristics of municipal solid waste. 04
(b) Enumerate different air pollution control devices and explain the function of
electrostatic precipitator in detail.
07
Q.5 (a) Explain the procedure to determine temporary and permanent hardness of water. 03
(b) Explain sanitary land filling in detail with its respective merits and demerits. 04
(c) Explain different measures to control noise pollution 07
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2
OR
Q.5 (a) Explain different physical characteristics of wastewater. 03
(b) Differentiate between
(i) Domestic and Industrial wastewater.
(ii) Aerobic decomposition and Anaerobic decomposition
04
(c) Define 1. Sewage 2. Sullage. 3. Refuse 4. Compost 5. COD 6. Trap 7. Necrosis 07
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This post was last modified on 20 February 2020