B.TECH - Semester 5 enviromental engineering Question Paper 2020 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- (a) With a neat diagram explain the working of a rapid sand filter
- What is a clariflocculator? Explain it's function.
- The size of a rapid sand filter is 8 m by Sm . Quantity of filtered water in a day is 9000 cubic metre and the filter is back washed at a rate of 10 litres $/ \mathrm{sq} . \mathrm{m} / \mathrm{sec}$ for 10 seconds. Compute rate of filtration and per...
- Explain fluctuation in demand and its significance in design of components of water supply scheme.
- Explain breakthrough curves and their significance in adsorption.
- Explain the theory of filtration. ( $\mathbf{5} \boldsymbol{\times} \mathbf{4} \boldsymbol{=} \mathbf{2 0}$ Marks) PART - B > Answer any one full question from each module > Module - I
- (a) A rectangular settling tank is treating 1.5 MId of water. The detention time is 4 hours and velocity of flow 7 cml minute. Depth of the tank is 4.5 m with 0.2 m free board and 1.3 m for sediment deposit. Calculate the length and width of basin
- (b) Describe any four chemical characteristics of water. Or
- Design a clariflocculator for supplying water for a population of 50000 . Make suitable assumptions where needed.
- (b) Bleaching powder is used for disinfecting water to a population of 25000 having a per capita demand of 200 litres per day. Percentage available chlorine is 25 . Determine the quantity of bleaching powder required annually if 0.5 ppm is the chlori...
- Design rapid sand filter/s for 3.5 Mld with all principal components
- The population for a town obtained from census record is as below. Determine the expected population for the year 2026 by (a) Incremental increase method
- The population for a town obtained from census record is as below. Determine the expected population for the year 2026 by (b) Geometrical increase method
- The population for a town obtained from census record is as below. Determine the expected population for the year 2026 by (c) Decreasing rate of growth method | Census year | 1970 | 1980 | 1990 | 2000 | 2010 | | :--- | :---: | :---: | :---: | :---: ...
- (a) Explain with a neat diagram the working of a twin well type intake
- (b) For a town, water is pumped from a river 5 km away into a reservoir. The maximum difference in level between river and reservoir is 15 m . Population is 20000 and per capita demand is 1351 liters per day. If pumps are operating for 10 hours a day...
- (a) Explain any two methods of removing permanent hardness
- (b) Explain Reverse osmosis and Electrodialysis Or
- (a) Describe the process of Ultralitration.
- (b) How is the adsorption capacity of an adsorbent found out?