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4 cards from this section. Quick, good the night before a test.
Define Duty in the context of irrigation.
Think about how land area relates to water flow.
What is Delta?
Consider the time frame from sowing to harvesting.
What is Duty in irrigation design?
Consider the relationship between area and water flow.
True or False: Delta is measured at the head of the canal.
Think about what Delta actually represents.
If an irrigation canal has a discharge of 15 cumecs and irrigates a total of 37,500 hectares, calculate the Duty. If the base period is 150 days, find the Delta.
Break the problem into two parts: first calculate Duty, then use that to find Delta.
An irrigation project requires that 1000 hectares needs a total of 80 cm of water over 120 days. What should be the capacity (in cumecs) of the irrigation system?
Convert water depth to meters and apply the Delta formula in reverse.
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