$1.$ Apply equilibrium equations to find reaction$($s$)$ at B for the following case, q$=10$ degrees.

$2.$ Knowing that link BD is $1$ inch wide with thickness $5/8$ in$,$ determine the axial stress at the midpoint of link BD$.$

$3.$ Knowing that pins B and D have a $1/2$ in diameter, determine the value of the bearing stress in link BD at the pin connection.

$4.$ Determine the value of the maximum tensile stress in linkBD at the pin connection.