Question

The shear force diagram is as shown below:

The loading diagram for the above shear force diagram is

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

(a)
Note: In the question given is the shear force diagram and the answer key has loading diagram.
Section CD: SFD is constant with magnitude of 12 kN. This shows a downward acting concentrated load at end D.

Section BC: A sloping SFD denotes a UDL on the span BC with magnitude

$\frac{38-(-2)}{4}=10kN/m$

Section AB: Abrupt change in value of SF from -2kN to -12kN denotes the presence of a concentrated load at B acting downward. Its magnitude = 12-2 =10kN.