STUPIDSID
1 (a)
Differentiate between low and high head power plants. Discuss components of a hydroelectric power plant
7 M
1 (b)
With a neat sketch, describe various zones of storage in a reservoir. Also suggest measures to control reservoir sedimentation
7 M
2 (a)
What is the need for planning of water resources projects? Discuss the steps involved in the water resources planning.
7 M
2 (b)
Discuss causes of drought and drought contingency planning.
7 M
2 (c)
What is meant by 'water harvesting'? Explain methods of roof water harvesting and water harvesting for agricultural use.
7 M
3 (a) i)
Explain various forms of precipitation.
3 M
3 (a) ii)
Explain the use of tipping bucket type rain gauge.
4 M
3 (b)
The rates of rainfall for successive 30 minute period of a 3-hour storm are 1.5, 3.2, 4.3, 2.7, 2.1 and 1.2 cm/hr. The surface runoff in response to the
storm is estimated to be 3.0 cm. Determine ϕ-index and w-index. Consider a
total of depression and interception losses of 1.0 cm.
7 M
3 (c) i)
A rain gauge 'D' was inoperative during a specific storm. The rainfall
recorded at three surrounding stations A, B and C during that storm were
52, 85 and 70 mm respectively. If the average annual rainfall of stations
A, B, C and D are 650, 900, 820 and 700 mm respectively, estimate the
storm rainfall of station D.
3 M
3 (c) ii)
The rainfall values at gauging stations and corresponding areas of
Thiessen's polygons for a drainage basin are as follows:
Compute the average rainfall over the basin.
| Station | A | B | C | D | E | F | G |
| Area of Thiessen's Polygon (km2) | 160 | 135 | 92 | 110 | 68 | 70 | 35 |
| Rainfall (cm) | 10.0 | 13.5 | 9.1 | 12.6 | 11.2 | 14.0 | 10.8 |
Compute the average rainfall over the basin.
4 M
3 (d)
What are the factors that affect Evaporation? Describe any one method of
measurement of evaporation.
7 M
4 (a)
Explain procedure to derive s-curve hydrograph from a given unit hydrograph. What are the uses of s-curve hydrograph?
7 M
4 (b)
Discuss occurrence of groundwater with a neat sketch and define various water bearing formations.
7 M
4 (c)
Define Hydrograph. Draw a typical single-peaked hydrograph and explain its components.
7 M
4 (d)
The ordinates of flood hydrograph for a drainage basin in response to a 6-
hour storm are observed as follows:
Considering total rainfall of 7 cm during the storm, average rate of infiltration loss of 0.5 cm/hr and a constant base flow of 15 cumec, derive ordinates of the 6-hour unit hydrograph. Also estimate area of the basin.
| Time (hour) | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 |
| Hydrograph Ordinate (cumec) | 15 | 35 | 67 | 109 | 151 | 175 | 195 | 153 |
| Time (hour) | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 |
| Hydrograph Ordinate (cumec) | 139 | 113 | 87 | 63 | 47 | 31 | 23 | 15 |
Considering total rainfall of 7 cm during the storm, average rate of infiltration loss of 0.5 cm/hr and a constant base flow of 15 cumec, derive ordinates of the 6-hour unit hydrograph. Also estimate area of the basin.
7 M
5 (a)
Discuss causes of flood.
7 M
5 (b)
Explain flood routing through reservoirs.
7 M
5 (c)
Write a short note on flood control by constructing levees and flood walls.
7 M
5 (d)
Briefly explain method of estimating design flood for a water resources
Project.
7 M
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