Flow In Closed Conduits 5. Water at 65F is pumped to a tank through a 750 ft 12-in diameter galvanized iron pipe and the flow is 4.5 cfs. (a) Determine the head lost due to friction. (b) How much power, in HP, is required to overcome this head loss? Answers: (a) _______________________________ (b) _______________________________

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Friction

Friction is defined as the force that prevents any solid surface, any layer of fluid, or any kind of element or material from sliding.