1. State all assumptions and determine friction loss in a concrete pipe (L = 3000 ft, D = 1 ft) that carries 12 cfs of water at 140°F. a) Use

Darcy-Weisbach equation b) Use Hazen-Williams equation d) Briefly explain why selection of a design value for pipe roughness is appropriate for new pipe c) Briefly explain any difference between energy loss calculated by both methods