Water flows in a circular pipe. At one section the diameter is 0.5 m, the static pressure is 250 kPa gauge, the velocity is 5 m/s and theelevation is 15 m above ground level. The elevation at a section downstream is 2 m, and the pipe diameter is 0.2 m. Find out the gaugepressure at the downstream section. Frictional effects may be neglected. Assume density of water to be 999 kg/m³.