Question: 1. What is a Direct Runoff Hydrograph? 2. What is the Manning Equaiton? How is it used? 3. Why is the time of concentration important

1. What is a Direct Runoff Hydrograph? 2. What is the Manning Equaiton? How is it used? 3. Why is the time of concentration important when calculating peak flow? 4. Explain how hyetographs, unit hydrogaphs and unit duration are used in calculating runoff 5. What is the rational method? How is it used

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