Challenger Logo

Challenger App

Get it on Google PlayGet it on App Store
App Logo

No.1 PSC Learning App

★
★
★
★
★
1M+ Downloads
Get App
Which of the following beams is likely to have the point of contraflexure?

ABeam fixed at both ends

BCantilever beam

CSimply supported beam

DBeam with over hangs

Answer:

D. Beam with over hangs

Read Explanation:

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.

Related Questions:

For a simple case of a simply supported beam experiencing a point load at its center, which of the following equilibrium conditions hold?At any point on the beam:

  1. The algebraic sum of the moments due to all forces acting on the beam is zero
  2. The algebraic sum of vertical forces acting on the beam is zero
  3. The algebraic sum of horizontal forces is always negative (less than zero)
  4. The total acceleration experienced by the beam is zero
    The moment diagram is when the cantilever beam whose free ends are applied with bending moment.
    The rate of change of bending moment is equal to
    Two beams have the same width but the first beam has double the depth of the second beam. The elastic strength of the first beam compared to the second beam will be
    When the shear force at a section of a beam under bending is zero, the bending moment at that section is either a maximum or a minimum. This is because the shear force is a measure of the rate of change of the bending moment. When the shear force is zero, the bending moment is either at its peak or at its trough.