68.Which of the following statements regarding floods is true ? Select one a. a 40 - year flood is generally of greater magnitude than a 80 - year flood b. a 200 - year flood has a 2 % chance of occurring in any one year c. if there is a 10 % probability of a flood of a certain height occurring in any one year it is called a 10 - year flood d . the recurrence interval of a flood of a certain height does not depell upon the width of the floodplain

Q: Based on the assumption that some annual flow data fit the normal probability distribution, the…

A:

Q: 3. A recreational park is built near Buffalo Creek. The stream channel can carry 200 m³/s, which is…

A: Recreational park- peak flow =5 year flow of stream channel =200 m3/s

Q: A city is expanding its water resources to include extracting water from a river that has an annual…

A:

Q: A water-resource system is designed for a 50-year storm. Assuming that storm occurrence is a…

A: Return period of a storm can be defined as time duration after which the flood occurs or is expected…

Q: A city will extract water from a river that has an annual 7-day low flow that follows a Pearson Type…

A: Given:- A city extracts water from a river that has an annual 7-day low flow The value of mean =…

Q: cofferdam is built in a river subject to annual flooding. The cofferdam will be in the river during…

A: Given:- 20 year flood 4 flood seasons  To find:- probability of occurrence of this flood

Q: Based on the assumption that some annual flow data fit the normal probability distribution, the…

A: x = 750m3/s μ =110 m3/s T1 = 10 years T2 = 100 years

Q: According to the rainfall records for a city, we have obtained the probabilities of receiving more…

A:

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.