Practice Quiz

Civil Engineering PE

Category - Hydrology

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When designing storm sewers and open channel conveyance systems, the use of peak runoff rates is generally considered adequate. However, conveyance system designs that include flood routing components, such as retention or detention basins, which of the following is appropriate to consider?
  1. Rainfall spatial variability
  2. Flood hydrograph
  3. Antecedent soil conditions
  4. All of the above
Explanation
Answer: B - Conveyance system designs that include a flood routing component should consider flood hydrographs. Incorporating flood hydrographs into the design of a conveyance system can be a complex process, and is often done using a hydrology software application integrated with a computer aided drafting and design (CADD) program. The spatial variability of rainfall and antecedent moisture conditions are taken into consideration when modeling the performance of existing (built and operating) conveyance systems.
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