Question

If the supports which are supporting a body at a certain height are not properly aligned then the reaction forces developed are adequate to support the body.

(a) Statement is true only in 2D

(b) Statement is true only in 3D

(c) Statement is false throughout

(d) Statement is true only in 1D

I got this question in an interview.

The question is from Potential Energy Criterion for Equilibrium in portion Principle of Virtual Work of Engineering Mechanics

Answer 1

The correct option is (c) Statement is false throughout

The explanation is: This is the basic nature observed during the experiments on the beams an all the support system. The dimension doesn’t affect the equilibrium conditions. The main motto is to achieve the equilibrium. It is achieved by equating the net force equal to zero. But here the system is not properly aligned.