Point of contra-flexure is a
A)Point where Shear force is maximum
B)Point where Bending moment is maximum
C)Point where Bending moment is zero
D)Point where Bending moment=0 but also changes sign from positive to negative

Question

Quizplus · Accepted Answer

A point of contra-flexure is where the bending moment changes sign from positive to negative or vice versa, indicating a change in the curvature of the beam. This does not necessarily mean the bending moment is zero at all such points, but it is a point of transition.

Point of Contra-Flexure Is a