A pump must pump 500 gpm against a total head of 60 feet. What horsepower (water horsepower) will be required to do the work? Use both methods of calculating water horsepower to check your work.
Using the same flow rate and feet of head from question 1, what horsepower would be required if sludge (with a specific gravity of 1.85) were being pumped rather than water? How does this change the horsepower requirements?
What is the maximum pumping rate (in gallons per minute) of a pump that is producing 10 whp against a head of 37 feet?
Calculate the wire-to-water efficiency of a setup if the motor efficiency is 91% efficient and the pump efficiency is 68%.
If a pump is to deliver 360 gpm of water against a total head of 80 feet, and the pump has an efficiency of 55%, what horsepower must be supplied to the pump?
What is the wire-to-water efficiency if electric power equivalent to 15 hp is supplied to the motor and 9.5 hp of work is accomplished by the pump?