Question $1$

Report the reaction force at D is $($in lb $,$ retain the sign$)$

Question $2$

The maximum shear force occurs at:

$($A shear force of$,$ say, $-5000$ units is greater than a shear force of $+2000$ units. The magnitude decides which is larger.$)$

D

C

B

A

Question $3$

The maximum bending moment occurs at:

$($A bending moment of$,$ say, $-5000$ units is greater than a shear force of $+2000$ units. The magnitude decides which is larger.$)$

A

D

C

B

Question $4$

The shear force curve between points $\backslash ($ A $\backslash )$ and $\backslash ($ B $\backslash )$ is

Quadratic

Quartic $(4$th power$)$

Linear

Cubic

Question $5$

The bending moment curve between D and E is

Quadratic

Linear

Cubic