Table $1$

Keep the load hanger positions the same as part $1.$ Level the beams and record the spring balance reading in table $2.$

As time permits repeat with a different span between supports, with the load hangers in different positions, and with different lgadings.

$14$

Results Table $2$

Include tables $1,$ and $2$

For each loading arrangement calculate the actual and theoretical bending moment at the cut section $\text{'}$ C $\text{'}$ and compare the two values.

To obtain the bending moment multiply the force $($as read on the spring balance$)$ by the distance to the NA of the beam $(150$mm$).$