JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III WATER RESOURCES ENGINEERING Previous Question Paper (March - 2024 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Define hydrologic cycle.
Answer
The hydrologic cycle is the continuous, complex process of water circulation on Earth, involving evaporation from water bodies, transpiration from plants, condensation into clouds, precipitation, and subsequent runoff or infiltration back into water bodies and groundwater systems.
List the types of rain gauges.
Answer
Rain gauges are primarily classified into two types:
- Non-recording rain gauges (e.g., Symon's rain gauge).
- Recording rain gauges (e.g., Tipping bucket type, Weighing bucket type, and Float type).
What are the various components of hydrograph?
Answer
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Define base flow.
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Define leaky aquifer.
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A 30cm diameter well completely penetrates a confined aquifer of permeability 45m/day. The length of the strainer is 20m. Under steady state of pumping the drawdown at the well was found to be 3.0m and the radius of influence was 300 m. Calculate the discharge.
Answer
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What are the necessities of irrigation?
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Define delta of a crop.
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Define siphon aqueduct.
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List the advantages of canal lining.
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Part B
Explain about evapotranspiration.
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Discuss about the Penman's equation of evapotranspiration.
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List and explain about the various measurement of infiltration.
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List and explain various factors affecting runoff of a given catchment.
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Elaborate the various factors affecting the flood hydrograph.
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List and explain various methods of base flow separation.
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Explain about the uses and limitations of Unit hydrograph.
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Elaborate the concept of synthetic unit hydrograph.
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Explain about various forms of subsurface water.
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Define porosity, specific yield, and specific retention. Write the relation between them.
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Three wells A, B and C tap the same horizontal aquifer. The distances AB = 1200m and BC 1000m. The well B is exactly south of well A and well C is lies to the west of well B. The following are the ground surface elevation and depth of water below the ground surface in the three wells. Determine the direction of ground water flow in the aquifer in the area ABC of the wells.
| Well | Surface elevation (m) | Depth of water table (m) |
|---|---|---|
| A | 200.00 | 11.00 |
| B | 197.00 | 7.00 |
| C | 202.00 | 14.00 |
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List and explain the various types of irrigation briefly.
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Write down the advantages of micro irrigation.
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Explain the various factors affecting the duty.
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Discuss some points to improve the duty.
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Discuss the design procedure of irrigation canal by Kennedy's theory.
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Compare Kennedy's theory with Lacey's theory.
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Explain about Canal alignments.
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Discuss the precautions to be considered for canal alignments.
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