Water flows from tank A whose level is at elevation 84.0' to tank B whose level is kept at elevation 60.0'. The tanks are connected by 100 ft of 12′′ pipe (f = 0.020) followed by 100 ft of 6′′ pipe (f = 0.015). There are two 90° bends in each pipe

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?