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Hydrology & Irrigation

Types of Flood Routing

A flood wave ...

Question

A flood wave with a known inflow hydrograph is routed through a large reservoir. The outflow hydrograph will have

A

Attenuated peak with reduced time base

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B

Attenuated peak with increased time base

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C

Increased peak with increased time base

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D

Increased peak with reduced time base

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Solution

The correct option is B Attenuated peak with increased time base
Main function of any reservoir in the flood routing is to reduce the peak and increase the time base.

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