What is the importance of Water supply scheme?
[3 marks]Define the following terms: [i] Porosity [ii] Water Bearing stratum [iii] Aquifer [iv] Permeability
[4 marks]Give the classification of sources of water. Explain each source in brief.
[7 marks]Write a short note on ideal population growth curve.
[3 marks]Differentiate between Gravity system & Pressurized system of water supply.
[4 marks]Atown having a population of 60,000 is supplied with a per capita water supply of 180 litres per day. Aseparate sewer from this town enters a pumping station through a low level sewer at R.L. 120.00 m. This sewage is to be pumped to a high level sewer at R.L. 129.00 m. Assuming that 80% of water reaches the sewer, determine a) size of sump well, b) BHP of pump motor required and c) size of rising main, if the length is 120 m. (Peak flow =3 times the average flow, Velocity of flow in rising mains = 1 m/s, Min. time of pumps running continuously = min, Head losses in bends = 0.4 m, Efficiency of pump =65% and Efficiency of Driving Unit = 75%)
[15 marks]What are the factors on which location of intake works depend? Draw a neat sketch of river intake and explain its working.
[7 marks]Write a short note on “Traps”.
[3 marks]Draw neat sketches and describe the following joints: (i) Expansion joint & (ii) Flanged joint
[4 marks]Under what circumstances pumps are required? What are the main classifications of pumps?
[7 marks]Draw a diagram of Dead end system.
[3 marks]Prepare a list of different types of valves used in water supply and explain any two in brief with neat sketch.
[4 marks]Enlist the distribution systems and explain anyone with a neat sketch, enlisting its merits and demerits.
[7 marks]What should be the characteristics of materials to be used for sewer construction?
[3 marks]Enlist various systems used in House Plumbing. Explain any one in detail.1 What are the aims and objectives of sewage disposal? Explain
[4 marks]in detail.
[7 marks]Explain the hydrostatic test for laying of new sewer pipelines.
[3 marks]Enlist different types of Materials for Sewers. Explain any two in detail.
[4 marks]How does the sewage flow vary from hour to hour, day to day and season to season in what way does this affect the design of sewage system?
[7 marks]Draw a neat flow diagram of water supply scheme..
[3 marks]What factors affect the quantity of storm water flow?
[4 marks]What are the factors on which location of intake works depend? Draw a neat sketch of Reservoir intake and explain its working.
[7 marks]What is coefficient of runoff?
[3 marks]Define the terms: (i) Self-cleaning velocity (ii) Non scouring velocity (iii) Invert (iv) Sullage
[4 marks]Enlist and explain factors affecting water demand.2
[7 marks]