RGPV Civil Engineering (Semester 6)
Environmental Engineering 1
December 2015
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) What do you understand by fire demand?
2 M
1(b) What are the various types of water demands?
2 M
1(c) What do you understand by per ca pita demand?
3 M
Solve any one question from Q.1(d) & Q.1(e)
1(d) Mention and discuss the factors that influence per capita demand?
7 M
1(e) Compute the population of the year 2000 and 2006 for a city whose population in the year 1930 was 25,000 and in the year 1970 was 47,000.Make use of geometric increase method?
7 M

2(a) What are the common impurities fund in natural sources of water?
2 M
2(b) What do you understand by turbidity?
2 M
2(c) Why are some diseases called water borne?
3 M
Solve any one question from Q.2(d) & Q.2(e)
2(d) Enumerate and discuss in brief the various physical, chemical and bacterial characteristics of testing of raw water supplies?
7 M
2(e) State the permissible limits for fluorides in water to be supplied for domestic consumption. Mention the ill-effects when they are not in the permissible limits?
7 M

3(a) What do you understand by detention period in a sedimentation basin?
2 M
3(b) What do you understand by break point chlorination?
2 M
3(c) Explain water aeration.
3 M
Solve any one question from Q.3(d) & Q.3(e)
3(d) Describe briefly the various constituents of a coagulation sedimentation plant.
7 M
3(e) Discuss how a slow sand filter differ from rapid sand filter.
7 M

4(a) What do you understand by stand pipes?
2 M
4(b) What do you understand by distribution reservoirs?
2 M
4(c) Write a note on metering in distribution systems.
3 M
Solve any one question from Q.4(d) & Q.4(e)
4(d) Explain Hardy Cross Method.
7 M
4(e) State the functions of a service reservoir?
7 M

5(a) What do you understand by check valve?
2 M
5(b) What do you understand by pressure release valve?
2 M
5(c) Explain water pollution control act.
3 M
Solve any one question from Q.5(d) & Q.5(e)
5(d) Describe the methods for financing and management of water supply project.
7 M
5(e) Explain water carriage system in detail.
7 M



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