Q-OCF A rectangular open channel has a width of 5m and a bed slope of 0.001. For a uniform flow of depth 2m, the velocity is 2m/s. What is the Manning's roughness coefficient for the channel?

Sketch the othrographic views: plan view, elevation view, and end view on paper. The 12 on the picture means problem 12.

Problem 2: Locate the centroid of the plane Y 60 mm -105 mm area 75 mi I

GRAPHIC 61+200 Fø13½" (75 HP) SCALE 70% 75% 80% 82% 60 GPM Ø12%" (60 HP) 83% 84% 83% 82% 80% 46+150 Ø12%" (50 HP) 75% Ø11%" (40 HP) 70% 65% 31+100 100 BHP Ø10%" (30 HP) NPSHr ft m 75 BHP 60 BHP 30+9 15+50 50 BHP 30 BHP 40 BHP 20+6 NPSHr 10+3 GALLONS PER MINUTE LITERS PER MINUTE Refer to the system curve drawn on this pump curve. If the pump is to move 1080 gpm, what size impeller should be specified? O 10 7/16" pump impeller O 11 7/16" pump impeller O 12 3/16" pump impeller O 12 3/4" pump impeller O 13 1/2" pump impeller 1136+300 2271+600 006+20 4543+1200- 5678+1500아 6414+1800- 7949+210아 9085+2400 11356+3000 10 FEET