Water Resources Engineering and Hydrology — Summer 2025

Write brief note on any one dam located in Gujarat state.

Define following terms: Aquifer (2) Aquiclude (3) Aquifuge & (4) Aquitard

State Dalton’s Law of evaporation. Explain various methods adopted to evaluate rate of evaporation.

Describe various forms of precipitation.

Discuss various causes of flood.

Explain method of determining direct runoff from a given storm hydrograph.

Astorm with 12 cm precipitation produces a direct surface runoff of 7.2 cm. The time duration of the storm is given in below table. Determine Ø – index of the storm. Time (Hour) 1 2 3 4 5 6 7 Hourly rainfall (cm) 0.4 1.0 1.8 2.6 2.0 1.5 1.2 0.5

Write brief note on gravity dam with its salient features

Describe various methods to find out missing rainfall data.

Discuss recuperation test to estimate safe yield of an open well

Discuss briefly isohyetal method to determine average depth of precipitation.

Discuss briefly any four drainage basin characteristics.

Discuss various types of energy dissipation devices used below spillway

Explain assumptions of unit hydrograph theory.

Enumerate principles and objectives of water resources planning

What is runoff? Discuss various factors affecting runoff from catchment area.

Differentiate Hydrograph and Hyetograph.

What is S-hydrograph? What are its uses?

Explain the procedure of determine capacity of reservoir using mass curve method.

Write short note on run-off enhancement.

Classify hydropower plant based on head of water and plant capacity.

Explain various non-structural mitigation measures are adopted to control flood.

Define and classify draught.

Discuss channel improvement works as flood control measure.

Enumerate various water resources projects effects on environment and ecological balance.