The pressure at section (2) shown in the figure below is not to fall below 50 psi when the flowrate from the tank varies from 0 to 1.0 cfs and the branch line is shut off. Determine the minimum height, h, of the water tank under the assumption that (a) minor losses are negligible, (b) minor losses are not negligible. Assume h = 6 ft, h = 11 ft, the entrance is sharp-edged. (a) h= (b) h = Dod ft ft 600 ft - with 15 90 elbows All pipe is 6-in.-diameter plastic (/D = 0), flanged fittings Branch line 900 ft (2) Main line