The following cost and benefit information has been estimated for a pump that has a 10-year useful life. Purchase Cost = $2,400
Annual Operating Cost = $1,200
Annual Maintenance Cost = $300
Annual Benefits = $2,000
Salvage Value = $200
Interest rate specified = 9% or 0.09

Find the capital recovery cost for this pump.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.