Storage Irrigation - Short Questions and Answers

Storage Irrigation - Short Questions and Answers Points : storage irrigation short questions and answers Q.1: What is storage irrigation? Ans: In storage irrigation system, a solid barrier, such as a dam or a storage weir is constructed across the river and water is stored in the reservoir or lake so formed. Q.2: Write down the different components which storage Irrigation Is depended. Ans: Depending upon the water requirements of crops, or the hydroelectric power generation, and upon the flow of water in the river, the volume of storage required is decided. Q,3: Write down the method of assessment of run off from catchment area. Ans: The run off of a catchment area in any specified period is the total quantity of water draining into a stream or into a reservoir in that period. This can be expressed as (i) centimeters of water over a catchment, or (ii) the total water in cubic-metre or hectare-metres for given catchment, Q.4: Write down the name of different method which rainfall is disposed off. Ans: The rainfall is disposed off in the following manner:
1. Basin Recharge.
2. Direct run-off (or simply run-off)
3. Percolation down to ground water
4. Evaporation Q.5: Define the method of direct run off Ans: Direct run-off is that water which reaches the stream shortly after it falls as rain.
Direct run-off consists of
(i) Overland flow (or surface run-off.
(ii) Interflow (influent stream).