The water in a rectangular reservoir having a base 80m by 60m is 6.5m deep.In what time can the water be amplified by a pipe of which the cross section is a square of a side 20cm if the water runs through the pipe at the rate of 15km per hour?
Q1. The water in a rectangular reservoir having a base 80m by 60m is 6.5m deep.In what time can the water be amplified by a pipe of which the cross section is a square of a side 20cm if the water runs through the pipe at the rate of 15km per hour?
Answer: 52hours
Explanation: Volume of reservoir = 80×60×6.5 = 31200 m³; pipe cross-section = 0.20×0.20 = 0.04 m²; flow rate = 0.04×(15000/60) = 10 m³/min; time = 31200/10 = 3120 min = 52 hours.