Explore topic-wise MCQs in Design Steel Structures.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Design Steel Structures knowledge and support exam preparation. Choose a topic below to get started.

1.

The value of φLT in bending stress reduction factor is given by

A. φLT = [ 1 – αLT (λLT + 0.2) + λ2LT].
B. φLT = [ 1 + αLT (λLT – 0.2) + λ2LT].
C. φLT = 0.5 [ 1 – αLT (λLT + 0.2) + λ2LT].
D. φLT = 0.5 [ 1 + αLT (λLT – 0.2) + λ2LT].
Answer» E.
Discussion
2.

The value of design bending compressive stress fbd is

A. XLT fy
B. XLT fy /fy
C. XLT fy fy
D. XLT /fy
Answer» C. XLT fy fy
Discussion
3.

The value of βb in the equation of design bending strength of laterally unsupported beams for semi-compact sections is

A. Ze/Zp
B. ZeZp
C. Zp/Ze
D. Zp
Answer» B. ZeZp
Discussion
4.

The value of βb in the equation of design bending strength of laterally unsupported beams for plastic sections is

A. 0.5
B. 2.5
C. 1.0
D. 1.5
Answer» D. 1.5
Discussion
5.

The value of φLT in bending stress reduction factor is given b?#

A. φ<sub>LT</sub> = [ 1 – α<sub>LT</sub> (λ<sub>LT</sub> + 0.2) + λ<sup>2</sup><sub>LT</sub>].
B. φ<sub>LT</sub> = [ 1 + α<sub>LT</sub> (λ<sub>LT</sub> – 0.2) + λ<sup>2</sup><sub>LT</sub>].
C. φ<sub>LT</sub> = 0.5 [ 1 – α<sub>LT</sub> (λ<sub>LT</sub> + 0.2) + λ<sup>2</sup><sub>LT</sub>].
D. φ<sub>LT</sub> = 0.5 [ 1 + α<sub>LT</sub> (λ<sub>LT</sub> – 0.2) + λ<sup>2</sup><sub>LT</sub>].
Answer» E.
Discussion
6.

The bending stress reduction factor to account for lateral buckling is given by

A. X<sub>LT</sub> = 1/{φ<sub>LT</sub> + (φ<sup>2</sup><sub>LT</sub> – λ<sup>2</sup><sub>LT</sub>)}
B. X<sub>LT</sub> = 1/{φ<sub>LT</sub> – (φ<sup>2</sup><sub>LT</sub> + λ<sup>2</sup><sub>LT</sub>)}
C. X<sub>LT</sub> = 1/{φ<sub>LT</sub> – (φ<sup>2</sup><sub>LT</sub> + λ<sup>2</sup><sub>LT</sub>)0.5}
D. X<sub>LT</sub> = 1/{φ<sub>LT</sub> + (φ<sup>2</sup><sub>LT</sub> – λ<sup>2</sup><sub>LT</sub>)0.5}
Answer» E.
Discussion
7.

The value of design bending compressive stress fbd is

A. X<sub>LT</sub> f<sub>y</sub>
B. X<sub>LT</sub> f<sub>y</sub> /f<sub>y</sub>
C. X<sub>LT</sub> f<sub>y</sub> f<sub>y</sub>
D. X<sub>LT</sub> /f<sub>y</sub>
Answer» C. X<sub>LT</sub> f<sub>y</sub> f<sub>y</sub>
Discussion
8.

The value of βb in the equation of design bending strength of laterally unsupported beams for plastic sections is$

A. 0.5
B. 2.5
C. 1.0
D. 1.5
Answer» D. 1.5
Discussion
9.

The bending strength of laterally unsupported beams is given by

A. M<sub>d</sub> = β<sub>b</sub>Z<sub>p</sub> /f<sub>bd</sub>
B. M<sub>d</sub> = β<sub>b</sub> /Z<sub>p</sub>f<sub>bd</sub>
C. M<sub>d</sub> = β<sub>b</sub>Z<sub>p</sub>
D. M<sub>d</sub> = β<sub>b</sub>Z<sub>p</sub>f<sub>bd</sub>
Answer» E.
Discussion
10.

The effect of lateral-torsional buckling need not be considered when

A. λ<sub>LT</sub> ≤ 0.4
B. λ<sub>LT</sub> ≥0.4
C. λ<sub>LT</sub> > 0.8
D. λ<sub>LT</sub> = 0.8
Answer» B. ‚âà√≠¬¨‚Ñ¢<sub>LT</sub> ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ѭ¢0.4
Discussion
11.

The design bending strength of laterally unsupported beams is governed by

A. torsion
B. bending
C. lateral torsional buckling
D. yield stress
Answer» D. yield stress
Discussion