Question

Which of the following beams is likely to have the point of contraflexure?

• A. Beam fixed at both ends
• B. Cantilever beam
• C. Simply supported beam
• D. Beam with over hangs

Answer 1

Answer:

D. Beam with over hangs

A beam with overhangs is likely to have a point of contraflexure. This point is where the bending moment changes sign, indicating a transition from positive to negative moment or vice versa. In beams such as cantilever or simply supported beams, the bending moment diagram does not typically exhibit this change in sign, whereas beams with overhangs often do, due to the varying load distribution and support conditions.