Question

Which of the following is not a parameter for decrease in strength of slender  member?

(a) seismic load

(b) initial lack of straightness

(c) residual stress

(d) variation of material properties

I got this question during an online interview.

The above asked question is from Behaviour of Compression Members & Types of Sections topic in portion Design of Compression Members of Design of Steel Structures

Answer 1

Correct answer is (a) seismic load

To elaborate: The decrease in strength of slender  member is due to following parameter : imperfections- initial lack of straightness, accidental eccentricities of loading, residual stress, and variation of material properties over the cross section.