B.Sc.Construction Management : Public Healtha Engineering Annamalai University Duestion Paper December 2014 Public Healtha Engineering

Annamalai University question paper december 2014
B.Sc. DEGREE EXAMINATION December 2014
(CONSTRUCTION MANAGEMENT)
(SECOND SEMESTER)
230: PUBLIC HEALTH ENGINEERING
Time: Three hours Maximum: 75 marks
 Answer ONE FULL question from each UNIT (5 × 15 = 75)
UNIT-I
1. What standard of purification would you recommend for domestic water
supplies?
(OR)
2. What is an ‘Intake structure’? List the various types of intake and discuss
in detail any two of them.
UNIT-II
3. What is flocculation? What are the factors affecting good coagulation?
Explain reactions involved.
(OR)
4. Draw the flow diagram and explain the essential stages in processes of
water treatment.
UNIT-III
5. With the neat sketch, describe the arrangement and working of a rapid
sand filter of the gravity type.
(OR)
6. Write down the design procedure for hard cross and equivalent pipe
method.
UNIT-IV
7. Explain the proess of decomposition of sewage and explain ‘BOD’ describe
briefly how it is determined.
(OR)
8. State the factors on which the storm water flow on an area depends.
UNIT-V
9. Write short notes on the following: (i) oxidation ponds (ii) Drying beds
(iii) Soak pits.
(OR)
10. Sketch and describe the working of a standard trickling filter for
purification of sewage.
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