Question

What will happen if the collinearity of the two members is affected?

(a) The zero force member will be unaltered

(b) The zero member needs to be changed or rotated

(c) There will be no zero member

(d) There will be two zero members formed

I got this question by my college professor while I was bunking the class.

I would like to ask this question from Zero Force Member topic in section Structural Analysis of Engineering Mechanics

Answer 1

The correct option is (c) There will be no zero member

To elaborate: For making any one of the member of the truss to be as a zero member all the conditions are to be followed. Like any two of the three members collinear. There must be no external forces acting on the section or the joint which is being selected.