questions

1. Water Supply, Sanitary and Environment (20%)
1. In context of scarcity of land fill sites, Solid waste management has become difficult task in
Kathmandu valley. What are your suggestions to reduce and recycle the waste so that pressure on
land fill site could be out down? Provide pragmatic solutions. [2062] 10 marks
2. You are required to supply drinking water to some community in hilly region. Describe the
various steps you will take o achieve this in the context of Nepal. [2062/71] 10 marks
3. As EIA national guidelines now it is mandatory to conduct EIA for significant roads in Nepal.
How does it help environment as well as the road network? Give a critical analysis. [2062] 10
marks
4. What factors affect the pressure in pipe lines of distribution system? What points should be taken
in to account, while designing such pipe lines? [2063] 10
5. Describe briefly the method of assessing the impact of a project on the environment. [2063] 10
6. How the operation and maintenance of water supply and sewerage system can be improved?
[2065] 5 marks
7. Community based water supply and sewerage system are feasible and sustainable in Nepal.
Justify this statement. [2065] 5 marks
8. Name the various steps /process involved in the environment impact assessment of project and
explain the function of each step/process. [2067] 10 marks
9. Define break pressure tank explain the hydraulic specifics in pipeline network system planning
and design keeping minimum head loss mind in this system. [2071] 10 marks
10. What is mean by onsite sanitation system? Design a septic tank for 200 users, rate of water supply
45 liters/day , detention period? 24 hours and cleaning of sludge as per 5 year. [2072] 10 marks
11. What are the various factors considered in design of sewers? Explain the different types of
sewerage system? [2073] 10marks
12. What do you understand by water hammer? Explain different type of surge tanks with scheme
drawings.

2. Water Supply, Sanitary and Environment (20%)
13. Explain why safe disposed of waste water is necessary. Provide comparison between separate and
competent sewer system.[2064] 10 marks
14. What are the various types of treatment of water to make it safe for dinking? Explain briefly the
competent of slow sand filter. [2064] 10 marks
15. Describe the source of pollution of Nepal. How these sources can be controlled? [2064] 5
16. Solid waste management. Explain it. [2065] 4 marks
17. Source of water supply, there selection and management. Explain it. [2065] 3 marks
18. Source of pollution for air, water and land. Explain it. [2065] 3 marks
19. Write down the different water born diseases transmitted through polluted water. Explain
their transmission routes and preventive measure. [2067/70] 10 marks
20. Draw a flow chart of each component of a typical rural water supply system and explain the
function of each component. [2067] 10 marks
21. List the various impurities present in surface water sources. What are their effects on human
health? Describe the various components of water treatment plant generally used for purification
of water from such source. [2070] 10 marks
22. Explain the treatment process of waste in detail with sketches. [2072] 10 marks
23. “New technological innovation has resulted a lot of benefit to the society” justify this
statement with appropriate examples. [2072] 10 marks
24. Differentiate intake, collection chamber and break pressure tank in a water supply system. [2073]
[3+3+4]marks
25. What are the sources of air pollution? Mention the control method of air pollution. [2073]
[4+6]marks
26. Short note: initial environment examination (IEE) 5 marks