Question

Which of the following is true about rigid construction?

(a) connections between members at their junction does not have sufficient rigidity

(b) connections between members at their junction have sufficient rigidity

(c) members are not connected

(d) connection between members at junction will not resist any moment

This question was posed to me during an interview for a job.

Origin of the question is Methods and Assumptions of Analysis topic in section Structural Analysis, Loading and Load Combinations of Design of Steel Structures

Answer 1

Right answer is (b) connections between members at their junction have sufficient rigidity

To explain: In rigid construction, connections between members at their junction have sufficient rigidity to hold angles between members connected at joint, unchanged under load.