State True/False a. Storm sewers are usually designed using an assumption of gradually varied flow. b....

State True/False

a. Storm sewers are usually designed using an assumption of gradually varied flow.

b. While water is being removed from a distribution system to fight a fire, the elevation of the hydraulic grade line tends to decrease.

c. A three-hour unit hydrograph represents a storm that produces three inches of runoff during the first hour of precipitation.

d. Adjusting the downstream weir in the 4ft wide indoor flume is the usual way to change the discharge

e. A prismatic channel has a rectangular cross-section

f. A pressure of 10 psi corresponds to a head of 23 ft of water

Expert Solution

Ally Wells answered 10 months ago

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