A $12-$meter long fully restrained beam supports a uniform load of $30$ KN$/$m$.$ To

prevent excessive deflection the beam is supported at midspan.

$22.$ What is the reaction $($kN$)$ at the midspan support?

A$.90$ C$.180$

B$.60$ D$.270$

$23.$ What is the maximum shear $($kN$)$ in the beam?

A$.100$ C$.120$

B$.90$ D$.60$

$24.$ What is the maximum bending moment $($kN$-$m$)$ in the beam?

A$.90$ C$.45$

B$.60$ D$.120$