Which of the following options is true with respect to the point of contraflexure?
1
Point of contraflexure occurs for a simply supported beam carrying point loads.
2
Point of contraflexure occurs when shear force changes its sign within the span length.
3
Point of contraflexure occurs for the overhanging beam subjected to uniformly distributed load.
4
Point of contraflexure occurs at the maximum bending moment.
5
Question Not Attempted