STUPIDSID
1 (a)
Define Intake and explain various factors influencing the selection of a site for intake.
6 M
1 (b)
Explain a submerged intake with the aid of neat sketch.
8 M
1 (c)
List the factors influencing the selection of pump and explain any two.
6 M
2 (a)
List the various methods of population forecasting and explain any two in detail.
8 M
2 (b)
Define rate of demand and explain the various factors influencing the per capita demand.
8 M
2 (c)
The population of a town is as below:
Estimate the population in the year 2040 by arithmetical increase method.
Estimate the population in the year 2040 by arithmetical increase method.
| Year | 1980 | 1990 | 2000 | 2010 |
| Population in thousand | 30,000 | 36,000 | 45,000 | 53,000 |
4 M
3 (a)
Explain the significance of the following impurities with respects to quality of water:
i) Turbidity ii) Hardness iii) Fluoride iv) Nitrate
i) Turbidity ii) Hardness iii) Fluoride iv) Nitrate
8 M
3 (b)
Explain the multiple fermentation tube test.
8 M
3 (c)
Write a note on water borne diseases and their control.
4 M
4 (a)
Define sedimentation. Show that settlement of the particles in sedimentation unit is independent of depth.
8 M
4 (b)
Explain the method of determining optimum dosage of coagulant with the aid of neat sketch.
6 M
4 (c)
A circular sedimentation fitted with standard mechanical sludge removal is to handle 5 million litres/day of sewage. Take detention period as 5 hr and depth of tank as 3m. Find the diagram of the tank.
6 M
5 (a)
Define filtration. Explain the principle underlying filtration process.
10 M
5 (b)
List and explain the various operating problems during the filtration process.
10 M
6 (a)
Define chlorination and explain the various forms of chlorination.
8 M
6 (b)
It is required to supply water for a town with a population of 30,000 at per capita demand of 150 litre. The disinfectant to be used is the bleaching powder which contains 30% of available chlorine. Determine how much bleaching powder is required annually at water works with 0.3 mg/L of chloride dose is required for disinfection.
6 M
6 (c)
Explain the zeolite process of hardness removal.
6 M
7 (a)
List the different layout of distribution system and explain the Grid iron distribution system in detail.
8 M
7 (b)
Explain fluoridation and de-fluoridation in detail.
6 M
7 (c)
Explain the Sluice valve used usually in distribution system with a neat sketch.
6 M
Write short notes on any four of the following:
8 (a)
Five demands of water
5 M
8 (b)
Infiltration Gallery
5 M
8 (c)
Indicator organism
5 M
8 (d)
Air Binding
5 M
8 (e)
Nalgonda technque
5 M
8 (f)
Nomograms
5 M
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