A reservoir reduces the peak discharge of a flood mainly by:
Correct answer: C. Temporarily storing part of the inflow
- A. Increasing downstream channel slope
- B. Increasing rainfall over the catchment
- C. Temporarily storing part of the inflow
- D. Eliminating all evaporation losses
Explanation
Flood storage temporarily holds part of the incoming flood volume and releases it at a lower rate over a longer period. This process is called attenuation of the flood peak.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Hydraulics and Water Resources
Hydraulics studies fluid properties, pressure, buoyancy, continuity, Bernoulli's equation, momentum, pipe flow, open-channel flow and hydraulic machines. Water resources extends these principles to pumps, turbines, reservoirs, irrigation, floods and hydrology, while distinguishing laminar from turbulent flow and uniform from gradually varied channel flow.
Practise Hydraulics and Water Resources
78 free Hydraulics and Water Resources MCQs from Civil Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Civil Engineering questions like this
Civil Engineering is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Hydraulics and Water Resources questions
In irrigation engineering, consumptive use of water is most closely represented by:
The unit hydrograph of a catchment represents the direct runoff hydrograph resulting from:
In hydrology, baseflow in a stream is mainly supplied by:
In a gradually varied open-channel flow, the pressure distribution is generally assumed to be:
The specific weight of a fluid is defined as its:
For a vertical submerged plane surface, the centre of pressure is generally located: