MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
Effective slenderness ratio of laced column shall be _________ |
| A. | equal to the maximum slenderness ratio of column |
| B. | 1.05 times the maximum slenderness ratio of column |
| C. | 0.5 times the maximum slenderness ratio of column |
| D. | 2 times the maximum slenderness ratio of column |
| Answer» C. 0.5 times the maximum slenderness ratio of column | |
| 2. |
lacing bars shall be inclined at an angle of ___ to axis of built up member. |
| A. | 20o |
| B. | 35o |
| C. | 50o |
| D. | 90o |
| Answer» D. 90o | |
| 3. |
WHICH_OF_THE_FOLLOWING_IS_NOT_TRUE??$ |
| A. | when welded lacing bars overlap main members, amount of lap should not be less than 4 times thickness of bar |
| B. | welding is to be provided along each side of bar for full length of lap |
| C. | lacing bars fitted between main members should be connected by fillet welds on each side |
| D. | when lacing bars are not lapped to form connection to components of members, appreciable interruption in triangulated system is allowed |
| Answer» E. | |
| 4. |
Effective slenderness ratio of laced column shall be _________$ |
| A. | equal to the maximum slenderness ratio of column |
| B. | 1.05 times the maximum slenderness ratio of column |
| C. | 0.5 times the maximum slenderness ratio of column |
| D. | 2 times the maximum slenderness ratio of column |
| Answer» C. 0.5 times the maximum slenderness ratio of column | |
| 5. |
lacing bars shall be inclined at an angle of ___ to axis of built up member.$ |
| A. | 20<sup>o</sup> |
| B. | 35<sup>o</sup> |
| C. | 50<sup>o</sup> |
| D. | 90<sup>o</sup> |
| Answer» D. 90<sup>o</sup> | |
| 6. |
The load on rivet/bolt when two lacing flats are connected at different point is |
| A. | (V<sub>t</sub> / N) cotΘ |
| B. | 2(V<sub>t</sub> / N) cotΘ |
| C. | 2V<sub>t</sub> N cotΘ |
| D. | V<sub>t</sub> NcotΘ |
| Answer» B. 2(V<sub>t</sub> / N) cot‚âà√≠‚àö‚⧠| |
| 7. |
The load on rivet/bolt when two lacing flats are connected at same point is |
| A. | (V<sub>t</sub> / N) cotΘ |
| B. | 2(V<sub>t</sub> / N) cotΘ |
| C. | 2V<sub>t</sub> N cotΘ |
| D. | V<sub>t</sub> NcotΘ |
| Answer» C. 2V<sub>t</sub> N cot‚âà√≠‚àö‚⧠| |
| 8. |
Minimum radius of gyration for lacing flats is |
| A. | t/‚àö12 |
| B. | t/12 |
| C. | t/‚àö24 |
| D. | t/24 |
| Answer» B. t/12 | |
| 9. |
Compressive strength in lacing bars in single lacing system is equal to |
| A. | V<sub>t</sub> /(N secΘ) |
| B. | V<sub>t</sub> /(N cosecΘ) |
| C. | V<sub>t</sub> N cosecΘ |
| D. | (V<sub>t</sub> /N) cosecΘ |
| Answer» E. | |
| 10. |
Which of the following condition should be satisfied for spacing of lacings? |
| A. | maximum slenderness ratio of component of main members between two consecutive lacing connection should be greater than 50 |
| B. | maximum slenderness ratio of component of main members between two consecutive lacing connection should be not greater than 50 |
| C. | maximum slenderness ratio of component of main members between two consecutive lacing connection should be more than 0.7 x most unfavourable slenderness ratio of combined column |
| D. | maximum slenderness ratio of component of main members between two consecutive lacing connection should not be more than 0.9 x most unfavourable slenderness ratio of combined column |
| Answer» C. maximum slenderness ratio of component of main members between two consecutive lacing connection should be more than 0.7 x most unfavourable slenderness ratio of combined column | |
| 11. |
Thickness of lacing member should be |
| A. | less than 1/40<sup>th</sup> of the effective length for single lacing |
| B. | not less than 1/60<sup>th</sup> of the effective length for double lacing |
| C. | less than 1/60<sup>th</sup>of the effective length for double lacing |
| D. | less than 1/60<sup>th</sup> of the effective length for single lacing |
| Answer» C. less than 1/60<sup>th</sup>of the effective length for double lacing | |
| 12. |
Minimum width of lacing bars shall _______ |
| A. | be less than 3 times diameter of connecting bolt/rivet |
| B. | be less than 5 times diameter of connecting bolt/rivet |
| C. | not be less than 3 times diameter of connecting bolt/rivet |
| D. | be less than 2 times diameter of connecting bolt/rivet |
| Answer» D. be less than 2 times diameter of connecting bolt/rivet | |
| 13. |
Which of the following is true about effective length? |
| A. | effective length shall be taken as length between inner end bolts/rivets of bars for single lacings |
| B. | effective length shall be taken as length between inner end bolts/rivets of bars for double lacings |
| C. | for welded bars, effective length shall be taken as 0.9 times distance between inner end welds connecting single bars to members |
| D. | effective length shall be taken as 1.5 times length between inner end bolts/rivets of bars for double lacings |
| Answer» B. effective length shall be taken as length between inner end bolts/rivets of bars for double lacings | |
| 14. |
Slenderness ratio of lacing is limited to |
| A. | 200 |
| B. | 145 |
| C. | 500 |
| D. | 380 |
| Answer» C. 500 | |
| 15. |
Lacing shall be designed to resist a total transverse shear equal to ____ of axial force in member |
| A. | 5% |
| B. | 1% |
| C. | 4.3% |
| D. | 2.5% |
| Answer» E. | |
| 16. |
The radius of gyration of combined column about axis perpendicular to plane of lacing should be _____ than about axis parallel to plane of lacing. |
| A. | cannot be compared |
| B. | smaller |
| C. | greater |
| D. | equal to |
| Answer» D. equal to | |