Shear & Moment Diagram

What is the definition of shear force?

• A) The force that causes bending in the beam

• B) The internal force resisting sliding between sections of a beam

• C) The moment that causes rotation

• D) The reaction at the support

In a simply supported beam with a point load at the center, where is the maximum bending moment?

• A) At the supports

• B) At the midpoint of the beam

• C) Near the fixed end

• D) Everywhere on the beam

What does the shear force diagram (SFD) look like for a beam with a uniform distributed load (UDL)?

• A) A horizontal line

• B) A series of spikes

• C) A linear sloped line

• D) A parabolic curve

What happens to the bending moment at the point where shear force is zero?

• A) Bending moment is also zero

• B) Bending moment is at its maximum or minimum

• C) The beam deflects at that point

• D) The reactions at the support are zero

A shear force diagram is always linear for a beam with a uniform distributed load (UDL).

• TRUE

• FALSE

The bending moment is always zero at the fixed end of a cantilever beam.

• TRUE

• FALSE

The slope of the bending moment diagram at any point is equal to the ______ at that point.

A beam subjected to a uniform distributed load (UDL) will have a shear force diagram that is a _______ function and a bending moment diagram that is a ______ function.

Explain why the bending moment is maximum where the shear force is zero.