Solution: A fire hose nozzle has a diameter of 1 1/8 in. According to some fire codes, the nozzle must be capable of delivering at least 250 gal/min. If the nozzle is attached to a 3 in diameter hose, what pressure must sbe maintained just upstream of the nozzle to deliver this flowrate?

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A fire hose nozzle has a diameter of 1 1/8 in. According to some fire codes, the nozzle must be capable of delivering at least 250 gal/min. If the nozzle is attached to a 3 in diameter hose, what pressure must sbe maintained just upstream of the nozzle to deliver this flowrate?