Draw the influence lines for the shear and bending moment at point $\backslash ($ B $\backslash )$ and the shears just to the left and just to he right of support C of the beam shown below. What are the ordinates of different parts of the diagram. Hints: the magnitude of the total shear change is $1$ unit. When drawing shear diagram at the place of the support, you get two shear diagrams, one at each side of that support. You draw an upward shear for one diagram that is to the right of support $\backslash ($ C $\backslash )$ and downward shear to the left of the support.