VTU Civil Engineering (Semester 6)
Rural Water Supply & Sanitation
May 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1(a) Discuss the need for protected water supplu.
8 M
1(b) Explain the various factors that govern the selection of a particular source of water in formulating a town or city water supply scheme.
6 M
1(c) Explain water bome diseases. What are the precautionary measures to be taken for control of the communicable diseases?
6 M

2(a) What are the advantages and disadvantages of centrifugal pumps and reciprocating pumps?
6 M
2(b) Explain the following : i) Plain chlorination ii) Break point chlorination
iii) Super chlorination.
6 M
2(c) Distinguish between fluoridation and defluoridation. Explain any one method of defluridation in detail.
8 M

3(a) Briefly explain the following methods of Might soil disposal with neat sketches:
i) Aqua privy ii) Two - pit latrine.
8 M
3(b) Explain the Septic Tank with neat sketch . Also Highlight advantages and disadvantages.
7 M
3(c) With neat sketch, explain soak pit.
5 M

4(a) Explain : i) Concept of Eco - sanitation ii) Sources of ground water pollution.
10 M
4(b) What is Rain water harvesting? Explain suitable mehods fo rain water harvesting in rural areas.
10 M

5(a) Define the following as referred to communicable diseases : i) Epidemic ii) Endemic iii) Vehicle of Infection iv) Vaccination v) Isolation.
10 M
5(b) Discuss the general mehods of communication of communicable diseases.
10 M

6(a) Describe the following methods of disposal with advantages and disadvatages:
i) Dumping ii) Incineration iii) Salvaging.
10 M
6(b) Explain with a neat sketch Bio plant in detail.
10 M

7(a) Explain all the essentials necessary to obtain the objectives of milk sanitation.
8 M
7(b) Define Pasteurization. Explain any one mehod of pasteurization, with a sketch.
12 M

8(a) Discuss the different diseases transmitted by the mosquito.
10 M
8(b) Briefly explain control of nuisance mosquitoes.
10 M



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