Determine the adequacy of a 600 mm diameter (internal) steel pipe of length 2500 m with a thickness of 20 mm if it is capable of carrying a maximum stress of 125 MPa. The pipe is connected to a reservoir whose water surface elevation is at elevation 200 m. and discharge freely into air. A valve at the lower end of the pipe (elev. 0 m) is to be closed quickly. Cwfor Hazen-William’s Equation is 120 for the pipe and take bulk modulus of the water equal to 2.07X106 KPa while modulus of elasticity for steel is 200,000 MPa.