1. Calculate the internal water pressure that will burst a 16-in.- diameter cast-iron water pipe if the wall thickness is 5 8 in. Use an ultimate tensile strength of 60,000 psi for the pipe.
2. Calculate the wall thickness required for a 1.25-m-diameter cylindrical steel tank containing gas at an internal gage pressure of 3.5 MPa. The allowable tensile stress for the steel is 103 MPa.