Question $4$

The $10\mathrm{.}7$ m long beam illustrated is made of steel having a yield strength of $300$ MPa $.($a$)$ In the special space provided, draw the internal$-$force diagrams. Indicate relevant values at points along the beam, including maxima$/$minima$,$ and annotate the shape of the diagrams; and $($b$)$ Is the orientation of the cross$-$section of the beam, as shown, adequate such that yielding of the beam does not occur? If it is not, what would you suggest as remedy? $($Provide calculations.$)$