Recording type and non recording type of rain gauge.

Evaporation and transpiration.

Describe Normal Ratio Method for estimation of missing rainfall data. The normal annual rainfall at station A, B, C and D in a catchment 770, 621, 530 and 474 mm respectively during the year 2019. The station C was out of order and annual precipitations for station A, B and D were recorded as 670, 554 and 365 mm respectively. Estimate the rainfall at station C in the year 2019.

Explain physical and chemical characteristics of water quality.

Explain velocity area method of runoff measurement.

What is water budget? Write mathematical equation of water balance and define its different terms.

Describe the arithmetic mean method for estimation for missing rainfall data.

Explain the curve number method of direct runoff estimation. Compute potential maximum retention if curve number (CN) is 80.

Define runoff. How weather conditions affect the runoff, discuss?

Describe the rainfall intensity-duration-frequency relationship. Write its importance?

What is water pollution? Differentiate between groundwater and surface water pollution.

What is WDT? Explain its functions.

What is integrated watershed management? Describe how it is important in sustaining livelihood of rural people?

Discuss the important functions of Project Implementing Agency.

Describe the main step different state governments have taken for enforcing rainwater harvesting?

Write advantages and limitations of the roof top rainwater harvesting.

Visit a nearby river and observe the colour of water at different places in the river and compare it with the water available at your home.

Rainwater harvesting was practiced in ancient time, discuss with suitable examples.

Describe the role of groundwater in Irrigation.

Define rainwater harvesting. Explain why rainwater harvesting is important in major cities of the country?