Show me the steps to solve the attached example.

Part $4$ can be left out as I have got an idea on how to do this.

Data: For the pipe material:

Tensile yield strength $=275$ MN$/$m$2$

Ultimate tensile strength $=500$ MN$/$m$2$

Young$$s Modulus of Elasticity $=201$ GN$/$m$2$

Modulus of Rigidity $=83$ GN$/$m$2$

Specimen endurance $=0\mathrm{.}5$Sut