Water is conveyed from street level to the top floor of a building 20 m above the street through a 50 mm diameter pipe that reduces to 25 mm at

the top floor. Initial velocity is 0.06 m/sec and initial pressure is3.8 atm. Assume no pipe branches and ignore viscosity. Calculate flow velocity (m/sec) in pipe on top floor Calculate absolute pressure (kPa) in pipe on top floor =) Briefly explain why pipe velocity should generally be limited to a maximum of ~3 m/sec