Exam Details
| Subject | water supply and treatment engineering | |
| Paper | ||
| Exam / Course | b.arch | |
| Department | ||
| Organization | Visvesvaraya Technological University | |
| Position | ||
| Exam Date | 2018 | |
| City, State | karnataka, belagavi |
Question Paper
Model Question Paper (CBCS) with effect from 2015-16
USN 15CV64
Sixth Semester B.E. Degree (CBCS) Examination
Water supply and Treatment Engineering
Time: 3hours Max Marks: 80
Note:- Answer Any Five full questions choosing one from each module
Module
1 a. What are the various types of water demand? Explain them in brief. (08 marks).
b. The census records of a small town is as follows:
Calculate the probable population in 2020, 2030, 2040 by decreasing growth method. (08 marks).
OR
2 a. Define per capita demand and design period. Explain the factors governing
design period. (08 marks).
b. The census records of a town show the population as follows as follows:
Present population 50,300
Population before one decade 46,500
Population before two decades 43,100
Population before three decades= 40,500
Calculate the probable population after one two and three decades by using Geometrical
increase Method ii) Incremental increase method. (08marks)
Module
3. a. State the various surface and underground sources of water. (04 marks)
b. What are the objectives of water treatment. (04marks)
c. Give the maximum permissible limits as per the BIS for the following water quality parameters.
Fluoride ii) Iron iii) Total hardness iv) Nitrate. Also indicate their health significance.(08marks)
OR
4. a. Suggest the treatment flowchart for treating underground water, highlighting the significance of
each unit. (06 marks)
b. what are the objectives of sampling. (04 marks)
c. What is sampling. Explain the different methods of sampling. (06 marks)
Year 1980 1990 2000 2010
Population 9000 13000 17500 23000
Module
5. a. Describe the feeding and mixing devices of coagulants. (08 marks)
b. Design a rapid sand filter unit for treating 4.5 MLD of water. (08 marks)
OR
6. a. With the help of the neat sketch explain the working of clarriflocculator. (08marks)
b. Explain the basic principles involved in ultra and micro filtration. (08 marks)
Module
7. a. Explain RO and nano filtration membranes and elements. (10 marks)
b. Briefly explain the zeolite process of softening of water. (08 marks)
OR
8. a. Explain the methods of disinfection along with its merits and demerits. (10 marks)
b Explain fluoridation and defluoridation. (06marks)
Module
9. a. Explain the factors to be considered in selection of intake structures.
Enumerate types of intakes. (08 marks)
b. From a clear water river 3m depep and maximum water level at 30m, water is pumped
to an elevated reservoir at 70m at a contant rate of 9 lakh litres/hr and the distance is
1500m. Give the economical diameter of thr rising main and the WHP of the pump.
Neglect minor losses and take f=0.01. (08 marks)
OR
10. a. Enumerate different types of
Pipe appurtenances ii) pipe materials (06 marks)
b. Explain the various methods of distribution system. (10 marks)
USN 15CV64
Sixth Semester B.E. Degree (CBCS) Examination
Water supply and Treatment Engineering
Time: 3hours Max Marks: 80
Note:- Answer Any Five full questions choosing one from each module
Module
1 a. What are the various types of water demand? Explain them in brief. (08 marks).
b. The census records of a small town is as follows:
Calculate the probable population in 2020, 2030, 2040 by decreasing growth method. (08 marks).
OR
2 a. Define per capita demand and design period. Explain the factors governing
design period. (08 marks).
b. The census records of a town show the population as follows as follows:
Present population 50,300
Population before one decade 46,500
Population before two decades 43,100
Population before three decades= 40,500
Calculate the probable population after one two and three decades by using Geometrical
increase Method ii) Incremental increase method. (08marks)
Module
3. a. State the various surface and underground sources of water. (04 marks)
b. What are the objectives of water treatment. (04marks)
c. Give the maximum permissible limits as per the BIS for the following water quality parameters.
Fluoride ii) Iron iii) Total hardness iv) Nitrate. Also indicate their health significance.(08marks)
OR
4. a. Suggest the treatment flowchart for treating underground water, highlighting the significance of
each unit. (06 marks)
b. what are the objectives of sampling. (04 marks)
c. What is sampling. Explain the different methods of sampling. (06 marks)
Year 1980 1990 2000 2010
Population 9000 13000 17500 23000
Module
5. a. Describe the feeding and mixing devices of coagulants. (08 marks)
b. Design a rapid sand filter unit for treating 4.5 MLD of water. (08 marks)
OR
6. a. With the help of the neat sketch explain the working of clarriflocculator. (08marks)
b. Explain the basic principles involved in ultra and micro filtration. (08 marks)
Module
7. a. Explain RO and nano filtration membranes and elements. (10 marks)
b. Briefly explain the zeolite process of softening of water. (08 marks)
OR
8. a. Explain the methods of disinfection along with its merits and demerits. (10 marks)
b Explain fluoridation and defluoridation. (06marks)
Module
9. a. Explain the factors to be considered in selection of intake structures.
Enumerate types of intakes. (08 marks)
b. From a clear water river 3m depep and maximum water level at 30m, water is pumped
to an elevated reservoir at 70m at a contant rate of 9 lakh litres/hr and the distance is
1500m. Give the economical diameter of thr rising main and the WHP of the pump.
Neglect minor losses and take f=0.01. (08 marks)
OR
10. a. Enumerate different types of
Pipe appurtenances ii) pipe materials (06 marks)
b. Explain the various methods of distribution system. (10 marks)
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