engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Strength of Materials Deflection of Beam Methods of Determining Deflection of Beam
According to the principle of virtual work, If the system of rigid bodies is in equilibrium under the action of a set of forces, then the work done by those forces during a small virtual displacement of the system must be equal to
1
Infinite
2
Zero
3
Unity
4
A non-zero constant
5
always changing