Question

Plane truss element can be shown in _____

(a) Local coordinate system

(b) Global coordinate system

(c) Local and global coordinate systems

(d) Dimensional structure

I have been asked this question in an interview for job.

This question is from Plane Trusses in section Trusses of Finite Element Method

Answer 1

The correct option is (c) Local and global coordinate systems

For explanation I would say: Truss is one where all members and nodes lie within two dimensional plane. Truss is that elements of a truss have various orientation. These different orientations can be shown in local and global coordinate system.