MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Steel Structures knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A square steel slab base of are 1 m2 is provided for a column made of two rolled channel sections. The 300 mm 300 mm column carries an axial compressive load of 2000 kN. The line of action of the load passed through the centroid of the column section as well as of the slab base. The permissible bending stress in the slab base is 185 MPa. The required minimum thickness of the slab base is |
| A. | 110 mm |
| B. | 89 mm |
| C. | 63 mm |
| D. | 55 mm |
| Answer» E. | |
| 2. |
A strut in a steel truss is composed of two equal angles ISA 150 mm 150 mm of thickness 100 mm connected back-toback to the same side of a gusset plate. The cross sectional area of each angle is 2921 mm2 and moment of inertia (Ixx = Iyy) is 6335000 mm4 . The distance of the centroid of the angle from its surface (Cx = Cy) is 40.8 mm. The minimum radius of gyration of the sturt is |
| A. | 93.2 mm |
| B. | 62.7 mm |
| C. | 46.6 mm |
| D. | 29.8 mm |
| Answer» D. 29.8 mm | |
| 3. |
ISA 100 100 10 mm (Cross sectional area = 1908 mm2) serves as tensile member. This angle is welded to a gusset plate along A and B appropriately as shown. Assuming the yield strength of the steel to be 260 N/mm2 the tensile strength of this member can be taken to be approximately. |
| A. | 500 kN |
| B. | 300 kN |
| C. | 225 kN |
| D. | None of &these |
| Answer» E. | |
| 4. |
A symmetric I-section (with width of each flange = 50 mm, thickness of each flange = 10 mm, depth of web = 100 mm and thickness of web = 10 mm) of steel is subjected to a shear force of 100 kN. Find the magnitude of the shear stress (in N/mm2) in the web at its junction with the top flange. |
| A. | 71.12 N/mm |
| B. | 61.12 N/mm |
| C. | 51.12 N/mm |
| D. | 21.12 N/mm |
| Answer» B. 61.12 N/mm | |
| 5. |
A steel section is subjected to a combination of shear and bending actions. The applied shear force is V and the shear capacity of the section is Vs. For such a section, high shear force (as per IS:800-2007) is defined as |
| A. | V > 0.6 V |
| B. | V > 0.7 V |
| C. | V > 0.8 V |
| D. | V > 0.9 V |
| Answer» B. V > 0.7 V | |
| 6. |
Two steel columns P (length L and yield strength fy = 250 MPa) and Q (length 2L and yield strength fy = 500 MPa) have the same cross-sections and end-conditions. The ratio of buckling load of column P to that of column Q is |
| A. | 0.5 |
| B. | 1.0 |
| C. | 2.0 |
| D. | 4.0 |
| Answer» E. | |
| 7. |
Consider the following statements:I. The width-thickness ratio limitations on the plate elements under compression in steel members are imposed by IS: 800-1984 in order to avoid fabrication difficulties. II. In a doubly reinforced concrete beam, the strain in compressive reinforcement is higher than the strain in the adjoining concrete.III. If a cantilever I section supports slab construction all along its length with sufficient friction between them, the permissible bending stress in compression will be the same as that in tension. The TRUE statements are |
| A. | Only I and II |
| B. | Only II and III |
| C. | Only I and III |
| D. | I, II and III |
| Answer» C. Only I and III | |
| 8. |
A circular solid shaft of span L = 5 m is fixed at one end and free at the other end. A twisting moment T = 100 kN - m is applied at the free end. The torsional rigidity Gj is 5000 kNm2 /red. Fllowing statements are made for this shaft.I. The maximum rotation is 0.01 rad II. The torsional strain energy is 1 kN-m With reference to the above statements, which of the following applies? |
| A. | Both statements are true |
| B. | Statement I is true but II is false |
| C. | Statement II is true but I is false |
| D. | Both the statements are false |
| Answer» C. Statement II is true but I is false | |
| 9. |
In the design of welded tension members, consider the following statements:I. The entire cross-sectional area of the connected leg is assumed to contribute to the effective area in case of angles.II. Two angles back-to-back and tack-welded as per the coda requirements may be assumed to behave as a tee section. III. A check on slenderness ratio may be necessary in some cases. The TRUE statements is/are |
| A. | Only I and II |
| B. | Only II and III |
| C. | Only I and III |
| D. | I, II and III |
| Answer» E. | |
| 10. |
Consider the following statements:I. Effective length of a battened column is usually increased to account for the additional load on battens due to the lateral expansion of columns. II. As per IS: 800-1984, permissible stress in bending compression depends on both Euler buckling stress and the yield stress of steel. III. As per IS: 800-1984, the effective length of a column effectively held in position at both ends but not restrained against rotation, is taken to be greater than that in the ideal end conditions. The TRUE statements are |
| A. | Only I and II |
| B. | Only II and III |
| C. | Only I and III |
| D. | I, II and III |
| Answer» B. Only II and III | |
| 11. |
Consider the following two statements related to structural steel design, and identify whether they are TRUE or FALSE:I. The Euler buckling load of a slender steel column depends on the yield strength of steel. II. In the design of laced column, the maximum spacing of the lacing does not depend on the slenderness of column as a whole. |
| A. | Both statements I and II are TRUE. |
| B. | Statement I is TRUE, and Statement II is FALSE. |
| C. | Statement I is FALSE, and statement II is TRUE. |
| D. | Both statements I and II are FALSE. |
| Answer» C. Statement I is FALSE, and statement II is TRUE. | |
| 12. |
Rivets and bolts subjected to both shear stress ( |
| A. | 1.0 |
| B. | 1.2 |
| C. | 1.4 |
| D. | 1.8 |
| Answer» D. 1.8 | |
| 13. |
As per IS 456: 2000, in the Limit State Design of a flexural member, the strain in reinforcing bars under tension at ultimate state should not be less than |
| A. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>f<sub>y</sub></center></td><td rowspan="2"></td></tr><td align="center">E<sub>s</sub></td></table> |
| B. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>f<sub>y</sub></center></td><td rowspan="2">+ 0.002</td></tr><td align="center">E<sub>s</sub></td></table> |
| C. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>f<sub>y</sub></center></td><td rowspan="2"></td></tr><td align="center">1.15E<sub>s</sub></td></table> |
| D. | |
| E. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>f<sub>y</sub></center></td><td rowspan="2">+ 0.002</td></tr><td align="center">1.15E<sub>s</sub></td></table> |
| Answer» E. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>f<sub>y</sub></center></td><td rowspan="2">+ 0.002</td></tr><td align="center">1.15E<sub>s</sub></td></table> | |
| 14. |
Two steel columns P (length L and yield strength f |
| A. | 0.5 |
| B. | 1.0 |
| C. | 2.0 |
| D. | 4.0 |
| Answer» E. | |
| 15. |
A steel column, pinned at both ends, has a buckling load of 200 kN. If the column is restrained against lateral movement at its mid-height, its buckling load will be |
| A. | 200 kN |
| B. | 283 kN |
| C. | 400 kN |
| D. | 800 kN |
| Answer» E. | |
| 16. |
A square steel slab base of are 1 m |
| A. | 110 mm |
| B. | 89 mm |
| C. | 63 mm |
| D. | 55 mm |
| Answer» E. | |
| 17. |
A strut in a steel truss is composed of two equal angles ISA 150 mm 150 mm of thickness 100 mm connected back-toback to the same side of a gusset plate. The cross sectional area of each angle is 2921 mm |
| A. | 93.2 mm |
| B. | 62.7 mm |
| C. | 46.6 mm |
| D. | 29.8 mm |
| Answer» D. 29.8 mm | |
| 18. |
In the design of lacing system for a built-up steel column, the maximum allowable slenderness ratio of a lacing bar is |
| A. | 120 |
| B. | 145 |
| C. | 180 |
| D. | 250 |
| Answer» C. 180 | |
| 19. |
ISA 100 100 10 mm (Cross sectional area = 1908 mm |
| A. | 500 kN |
| B. | 300 kN |
| C. | 225 kN |
| D. | None of &these |
| Answer» E. | |
| 20. |
A circular solid shaft of span L = 5 m is fixed at one end and free at the other end. A twisting moment T = 100 kN - m is applied at the free end. The torsional rigidity Gj is 5000 kNm |
| A. | Both statements are true |
| B. | Statement I is true but II is false |
| C. | Statement II is true but I is false |
| D. | Both the statements are false |
| Answer» C. Statement II is true but I is false | |
| 21. |
In the design of welded tension members, consider the following statements: |
| A. | Only I and II |
| B. | Only II and III |
| C. | Only I and III |
| D. | I, II and III |
| Answer» E. | |
| 22. |
An ISMB 500 is used as a beam in a multi-storey construction. From the viewpoint of structural design, it can be considered to be laterally restrained when, |
| A. | the tension flange is laterally restrained |
| B. | the compression flange is laterally restrained |
| C. | the web is adequately stiffened |
| D. | the conditions in (A) and (C) are met |
| Answer» C. the web is adequately stiffened | |
| 23. |
When designing steel structures, one must ensure that local buckling in webs does not take place. This check may not be very critical when using rolled steel sections because. |
| A. | Quality control at the time of manufacture of rolled sections is very good |
| B. | Web depths available are small |
| C. | Web stiffeners are in-built in rolled sections |
| D. | Depth to thickness ratios (of the web) are appropriately adjusted. |
| Answer» E. | |
| 24. |
Rivet value is defined as |
| A. | lesser of the bearing strength of rivet and the shearing strength of the rivet |
| B. | lesser of the bearing strength of rivet and the tearing strength of thinner plate |
| C. | greater of the bearing strength of the rivet and the shearing of the rivet. |
| D. | lesser of the shearing strength of the rivet and the tearing strength of thinner plate. |
| Answer» B. lesser of the bearing strength of rivet and the tearing strength of thinner plate | |
| 25. |
A steel member M has reversal of stress due to live loads, whereas another member N has reversal of stress due to wind load. As per IS 800:2007, the maximum slenderness ratio permitted is: |
| A. | less for member M than that of member N |
| B. | more for member M than for member N |
| C. | same for both the members |
| D. | not specified in the Code |
| Answer» B. more for member M than for member N | |
| 26. |
In a plate girder, the web plate is connected to the flange plates by fillet welding. The size of the fillet welds is designed to safety resist. |
| A. | the bending stresses in the flanges |
| B. | the vertical shear force at the section |
| C. | the horizontal shear force between the flanges and the web plate |
| D. | the forces causing buckling in the web. |
| Answer» D. the forces causing buckling in the web. | |
| 27. |
The cross-section of a thermo-mechanically treated (TMT) reinforcing bar has |
| A. | soft ferrite-pearlite throughout |
| B. | hard martensite throughout |
| C. | a soft ferrite-pearlite core with a hard martensitic rim |
| D. | a hard martensitic core with a soft pearlite-bainitic rim |
| Answer» D. a hard martensitic core with a soft pearlite-bainitic rim | |
| 28. |
A 16 mm thick plate measuring 650 mm 420 mm is used as a base plate for an ISHB 300 column subjected to a factored axial compressive load of 2000 kN. As per IS: 456-2000, the minimum grade of concrete that should be used below the base plate for safely carrying the load is |
| A. | M15 |
| B. | M20 |
| C. | M30 |
| D. | M40 |
| Answer» C. M30 | |
| 29. |
Consider the following two statements related to structural steel design, and identify whether they are TRUE or FALSE: |
| A. | Both statements I and II are TRUE. |
| B. | Statement I is TRUE, and Statement II is FALSE. |
| C. | Statement I is FALSE, and statement II is TRUE. |
| D. | Both statements I and II are FALSE. |
| Answer» C. Statement I is FALSE, and statement II is TRUE. | |