Question

You are logged in as Yazan Al soub (Log out) General Final Test Hydraulics 2.5 meter wide rectangular channel cames a discharge of 20 m3/sec at a uniform depth of 12 m Determine the slope of the channel if Manning coefficient is n=0022 red 2 dion Select one a 0.041 @b: 0.072 c. 0.061 bd None of the above 12.06

Answer 1

Given, y? 2.5m, da 1.2 m. Q: 20ms com%s , n20.022 Let slope bens' Area (A) bd = 2.5x1.2 = 3ml Wetted bt2d 2.5 + 2x1.23 4.9m. 3 2 0.6122 m, A Р 4.9 perimeter (P) = hydraulic radius (R) a 3) we know discharge @) 2 ARV R² % *0.61923, 5'2) 2) Cározet 20 V 2 t 3 x 2 slope ( s) = 0.0413