In a cast-iron piping system of 450 ft length shown below, the rate of flow is 1 cfs at 70°F. Assuming the total head losses for the flow in the system is 10 ft, what is the energy head supplied by the pump E? a. 40 ft b. 50 ft c. 60 ft d. 510 ft e. None of the above

As shown in the picture blew, a pump can deliver volume flow rate of    of water through a vertical lift of .  The inlet to the pump is just below the water surface and the discharge is to the atmosphere through a DN50 schedule 40  steel pipe.   The energy loss . (1) Calculate velocity at the exit of point 2__________m/s

Problem 2 A pump is needed in a water supply system. The water is being pumped out of a ground-level storage reservoir with water surface elevation of 149.27 ft and needs to pass over a hill 2 miles away, where the pipe centerline is at elevation 200.00 ft. The flowrate is 22 mgd, pipe diameter is 24 inches, Hazen-Williams friction factor is 110, and pressure at the crest of the hill must be at least 20 psi. (a) What head must the pump provide? (b) How much power will be added to the water? (c) What size motor should be purchased if the pump/motor combination has an efficiency of 80 percent?

For the following pump-pipe system below, how will the discharge and pump head change if a smaller pump in the same family is used to replace the current pump? Increase or decrease? EB EA Head (ft) 350 300 250 225 200 150 100 50 0 0 5 10 O Pump head will decrease; discharge will decrease. O Pump head will increase; discharge will increase. O Pump head will increase; discharge will increase. O Pump head will decrease; discharge will increase. 15 20 Discharge (cfs) System head curve 25 H₂ -Intersection point Pump characteristics 30 35 40