FE MECHANICAL PRACTICE EXAM

$99.$ Two aluminum bars with semicircular ends are bolted together in single shear, as shown, using a $5-mm$ bolt. The tension in the bolt is $8$ kN $.$ The tension on the bars is $100$ N $.$ The average shear stress $(MPa)$ at the interface of the overlapping bars is most nearly:

A$.0\mathrm{.}56$

B$.0\mathrm{.}63$

C$.5\mathrm{.}1$

D$.51$