a) If 1,000 gallons per minute (gpm) of water are flowing through a 4-inch (inside diameter) pipe, what is the average velocity of the water in the pipe?
b) If the flow passes into a section of 2 inc pipe , what is the average velocity in the smaller pipe?
c) A common rule of thumb for trying to keep pumping cost low is to design for average fluid velocity of about 3ft/sec. What pipe diameter is requiered to obtain this average velocity with a volumetric flow rate of 1000gpm.