MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 second moment of area of torsional stiffeners about center line of the web is given as |
| A. | Is ≤ αssD3 |
| B. | Is ≤ 0.34αsD3Tcf |
| C. | Is ≥ 0.34αsD3Tcf |
| D. | Is ≥ αsD3 |
| Answer» D. Is ≥ αsD3 | |
| 2. |
The connection of intermediate transverse stiffeners are designed for shear of |
| A. | twbs |
| B. | tw2/5bs |
| C. | tw25bs |
| D. | tw5bs |
| Answer» C. tw25bs | |
| 3. |
Which of the following is not true regarding longitudinal stiffeners? |
| A. | longitudinal stiffeners increase buckling resistance considerably as compared to transverse stiffeners |
| B. | they consist of plane section for welded plate girder |
| C. | first horizontal stiffener is provide at one-fifth of distance from compression flange |
| D. | first horizontal stiffener is provide at neutral axis |
| Answer» E. | |
| 4. |
The interaction expression for stiffeners subjected to external loads or moments is given by |
| A. | [(Fq-Fs)/Fqd]+(Fs/Fsd)+(Mq/Myq) < 1 |
| B. | [(Fq-Fs)/Fqd]+(Fs/Fsd)+(Mq/Myq) > 1 |
| C. | [(Fq-Fs)/Fqd]-(Fs/Fsd)-(Mq/Myq) < 1d) [(Fq+Fs)/Fqd]-(Fs/Fs |
| D. | +(Mq/Myq) < 1b) [(Fq-Fs)/Fqd]+(Fs/Fsd)+(Mq/Myq) > 1c) [(Fq-Fs)/Fqd]-(Fs/Fsd)-(Mq/Myq) < 1d) [(Fq+Fs)/Fqd]-(Fs/Fsd)-(Mq/Myq) > 1 |
| Answer» B. [(Fq-Fs)/Fqd]+(Fs/Fsd)+(Mq/Myq) > 1 | |
| 5. |
THE_INTERACTION_EXPRESSION_FOR_STIFFENERS_SUBJECTED_TO_EXTERNAL_LOADS_OR_MOMENTS_IS_GIVEN_BY?$ |
| A. | [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]+(F<sub>s</sub>/F<sub>s</sub>d)+(M<sub>q</sub>/M<sub>yq</sub>) < 1 |
| B. | [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]+(F<sub>s</sub>/F<sub>s</sub>d)+(M<sub>q</sub>/M<sub>yq</sub>) > 1 |
| C. | [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]-(F<sub>s</sub>/F<sub>s</sub>d)-(M<sub>q</sub>/M<sub>yq</sub>) < 1 |
| D. | [(F<sub>q</sub>+F<sub>s</sub>)/F<sub>q</sub>d]-(F<sub>s</sub>/F<sub>s</sub>d)-(M<sub>q</sub>/M<sub>yq</sub>) > 1 |
| Answer» E. | |
| 6. |
The connection of intermediate transverse stiffeners are designed for shear of$ |
| A. | t<sub>w</sub>b<sub>s</sub> |
| B. | t<sub>w</sub><sup>2</sup>/5b<sub>s</sub> |
| C. | t<sub>w</sub><sup>2</sup>5b<sub>s</sub> |
| D. | t<sub>w</sub>5b<sub>s</sub> |
| Answer» D. t<sub>w</sub>5b<sub>s</sub> | |
| 7. |
Which of the following is not true regarding longitudinal stiffeners?$ |
| A. | longitudinal stiffeners increase buckling resistance considerably as compared to transverse stiffeners |
| B. | they consist of plane section for welded plate girder |
| C. | first horizontal stiffener is provide at one-fifth of distance from compression flange |
| D. | first horizontal stiffener is provide at neutral axis |
| Answer» C. first horizontal stiffener is provide at one-fifth of distance from compression flange | |
| 8. |
Which of the following buckling check is applied to stiffeners? |
| A. | [(V+V<sub>c</sub>)/γ<sub>m0</sub>] ≤ F<sub>qd</sub> |
| B. | [(V+V<sub>c</sub>)γ<sub>m0</sub>] ≥ F<sub>qd</sub> |
| C. | [(V-V<sub>c</sub>)/γ<sub>m0</sub>] ≤ F<sub>qd</sub> |
| D. | [(V-V<sub>c</sub>)γ<sub>m0</sub>] ≥ F<sub>qd</sub> |
| Answer» B. [(V+V<sub>c</sub>)‚âà√≠‚Äö√¢‚Ä¢<sub>m0</sub>] ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ѭ¢ F<sub>qd</sub> | |
| 9. |
The second moment of area of transverse web stiffeners not subjected to external loads or moments is given by |
| A. | I<sub>s</sub> ≤ 0.75dt<sub>w</sub><sup>2</sup> |
| B. | I<sub>s</sub> ‚â• 0.75dt<sub>w</sub><sup>2</sup> |
| C. | I<sub>s</sub> ≤ 1.5dt<sub>w</sub><sup>2</sup> |
| D. | I<sub>s</sub> ‚â• 12.5dt<sub>w</sub> |
| Answer» D. I<sub>s</sub> ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ѭ¢ 12.5dt<sub>w</sub> | |
| 10. |
The effective length of intermediate transverse stiffener is taken as |
| A. | 2 times the length of stiffener |
| B. | 0.7 times the length of stiffener |
| C. | 1.4 times the length of stiffener |
| D. | 0.5 times the length of stiffener |
| Answer» C. 1.4 times the length of stiffener | |
| 11. |
The effective length of web on each side of centreline of stiffeners for interior stiffeners is limited to |
| A. | 10 t<sub>w</sub> |
| B. | 50 t<sub>w</sub> |
| C. | 40 t<sub>w</sub> |
| D. | 15 t<sub>w</sub> |
| Answer» E. | |
| 12. |
What is the stiff bearing length? |
| A. | length which cannot deform appreciably in bending |
| B. | length which deform appreciably in bending |
| C. | length of outer end of flange |
| D. | length of web |
| Answer» D. length of web | |
| 13. |
The outstand of stiffener from face of web is restricted to |
| A. | 20t<sub>q</sub>/ε |
| B. | 120t<sub>q</sub>ε |
| C. | 20t<sub>q</sub>ε |
| D. | 50t<sub>q</sub>ε |
| Answer» B. 120t<sub>q</sub>‚âà√≠¬¨¬µ | |
| 14. |
A-i, B-ii, C-iii, D-iv, E-v |
| A. | A-v, B-iv, C-iii, D-ii, E-i |
| B. | A-iv, B-v, C-i, D-ii, E-iii |
| C. | A-iii, B-iv, C-ii, D-v, E-i |
| Answer» D. | |
| 15. |
The function of bearing stiffener is to |
| A. | improve buckling strength of web |
| B. | preclude any crushing of web |
| C. | restrain against torsional effects |
| D. | increase buckling resistance of web |
| Answer» C. restrain against torsional effects | |