Question

For shear force to be uniform throughout the span of a simply supported beam, which of the following loads should be applied on to the beam?

• A. Two equally spaced concentric loads
• B. A couple at midspan only
• C. A couple anywhere in the span
• D. UDL over the entire span

Answer 1

The correct option is C A couple anywhere in the span

(c)
A couple any where in the beam will cause equal and opposite support reactions in the beam. So the SFD will be rectangular or uniform throughout the beam.