Define: Evapo- transpiration, Precipitation, Infiltration
[3 marks]List out the various methods used to calculate the average depth of rainfall over a catchment and explain any one with neat sketch.
[4 marks]What is hydrological cycle? Explain with neat sketch different components of hydrological cycle.
[7 marks]Explain Ø-index and W-index.
[3 marks]Describe the various factors affecting run-off from a basin area.
[4 marks]Enlist types of dams based on their function. Explain any one in brief.
[7 marks]Write shone note on Leeves and flood walls.
[7 marks]Explain in brief basin lag, recession time and time of concentration.
[3 marks]Discuss occurrence of groundwater with a neat sketch and define various water bearing formations.
[4 marks]The ordinates of a 3-hrs unit hydrograph are given below: Time in 0 3 6 9 12 15 18 21 24 27 30 hours Ordinates 0 12 26 19 17 13 10 8 5 2 0 m³/sec Find the ordinates of a 6 hour unit hydrograph for the same basin, analytically. Also, sketch this unit hydrograph. What is the peak value of discharge in this unit hydrograph ?
[7 marks]Give the difference between Specific Yield and Specific Retention for ground water.
[3 marks]Define following terms: (i) Firm Power, (ii) Load Factor, (iii) Gross Head, (iv) Operating Head
[4 marks]Find the ordinates of a storm hydrograph resulting from a 3 hours storm with rainfalls of 2.6, 6.65 and 3.85 cm during subsequent hours intervals. The ordinates of unit hydrograph are given below.1 Time in 3 6 9 12 15 18 21 24 hours Ordinates Of 0 112 360 515 385 320 255 230 Unit Hydrographs m³/sec Time in 3 6 9 12 15 18 21 24 Hours (Continue…) Ordinates Of 175 130 90 65 40 25 15 0 Unit Hydrographs m³/sec Assume an initial loss of 5 mm, infiltration index 2.5 mm/hour and base flow of 50 cumecs.
What is spillway? Explain functions of spillway.
[3 marks]Draw a neat sketch of ‘Hydroelectric power plant’. Explain the each component briefly.
[4 marks]Give difference between: (I) Hyetograph and Direct runoff hydrograph, (II) Unit hydrograph and S-Hydrograph.
[7 marks]Discuss the factors affecting selection of site of a dam.
[3 marks]List out different applications of unit hydrograph.
[4 marks]Write principle components of hydro electrical scheme and explain them with their utility.
[7 marks]Sketch a neat diagram of Ogee spillway.
[3 marks]Distinguish between (1) Hydraulic and hydrologic method of flood routing (2) Hydrologic storage routing and hydrologic channel routing
[4 marks]Water was pumped out from a well in a confined aquifer 10 m thick, having a hydraulic conductivity of 1.5 m/day. The drawdown observed in the two adjoining wells at 10 m and 50 m from the pumping well was 3.2 m and 0.08 m, respectively. Find the constant rate of pumping.
[7 marks]Enlist the different types of aquifers. Describe any one aquifer with neat sketch.
[3 marks]What is mean by Water harvesting? Explain any one method of water harvesting.
[4 marks]Explain the factors affecting evaporation in detail.
[7 marks]