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Previous Year Exam Questions of Water Resources Engineering of bput - WRE by Verified Writer

  • Water Resources Engineering - WRE
  • 2017
  • PYQ
  • Biju Patnaik University of Technology Rourkela Odisha - BPUT
  • Civil Engineering
  • B.Tech
  • 329 Offline Downloads
  • Uploaded 2 years ago
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Q4 a) Define catchment. Explain how the catchment boundary can be obtained from the topographic maps. Describe the principle involved in the measurement of stream flow by dilution method. What are the requisites of a good tracer used in the dilution method ? (8) Q5 In order to compute the flood discharge in a stream by the slope area method the following data has been obtained. u/s section middle section d/s section Area 108.6 m2 103.1 m2 99.8 m2 Wetted 65.3 m 60.7 m 59.4 m Perimeter Gauge reading 316.8 m 316.55 m Determine the flood discharge assuming Manning’s n = 0.029 and length between u/s and d/s section as 250 m. (15) Q6 The ordinate of a 4 h unit hydrograph of a basin of particular basin are given below. Determine the ordinates of the S- curve hydrograph and there from the ordinate of the 6 h unit hydrograph. Time (hr) 4-hr UGO (cumec) Time 4-hr UGO (hr) (cumec) 0 0 14 70 (15) b) 2 4 6 8 10 12 Q7 a) b) Q8 a) b) Q9 a) b) c) 25 100 160 190 170 110 16 18 20 22 24 (7) 30 20 6 1.5 0 The inflow hydrograph into a linear reservoir is triangular in shape with time base of 20 h and a peak flow of 240 m3/s occurring at 8 h. Assume that the storage constant of the reservoir is 2 h and the outflow from the reservoir at the time of arrival of the inflow is zero. Route the inflow hydrograph with Δt = 2 h. and find the peak outflow. Define IUH. How can IUH be derived from S-Curve? (10) Determine the most efficient section of a trapezoidal channel with side slope 2H: 1V, carrying discharge of 11.25 m3/s with a velocity of 0.75 m/s. What should be the bed slope of the channel. Take mannings η = 0.025. What are the assumptions for Gradually Varied Flow? Give two examples and Derive the equation for GVF. (8) Write short notes of the following : Evapo-transporation Synthetic hydrograph Specific energy (5) (7) (5) (5) (5)

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