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The point of contra – flexure occurs only in 

The point of contra – flexure occurs only in  Correct Answer Overhanging beams

Explanation:

Overhanging beam:

If the end portion of a beam is extended beyond the support, such beam is known as overhanging beam. In case of overhanging beams, the B.M. is positive between the two supports, whereas the B.M. is negative for the over-hanging portion. Hence at some point, the B.M. is zero after changing its sign from positive to negative or vice versa. That point is known as the point of contraflexure or point of inflexion.

Point of Contraflexure: 

It is the point where the B.M. is zero after changing its sign from positive to negative or vice versa.

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  • We call a point of contra-flexure at some location of any bending member like- beam where bending ‎moment changes its sign along the length of the member for a particular load case.
  • So, in Bending ‎Moment Diagram, the bending moment curve crosses the zero line at contra-flexure or simply, a bending ‎moment is zero at point of contra-flexure. It occurs in the overhanging beam.‎

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The point of contra flexure is a point where
The point of contra flexure is that point where