MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Design Of Steel Structures knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the hinged length for simply supported rectangular beam of span L with uniformly distributed load? |
| A. | L/ 3 |
| B. | L/ 2 |
| C. | L/2 |
| D. | L/5 |
| Answer» B. L/ 2 | |
| 2. |
What is the hinged length for simply supported rectangular beam of span L with central concentrated load? |
| A. | L/ 2 |
| B. | 2L |
| C. | L/2 |
| D. | L/3 |
| Answer» E. | |
| 3. |
Hinged length depends upon |
| A. | weight of member |
| B. | type of connection |
| C. | type of loading |
| D. | number of bolts used in connection |
| Answer» D. number of bolts used in connection | |
| 4. |
Which of the following is true about hinged length? |
| A. | value of moment adjacent to yield zone is more than yield moment up to hinged length of structural member |
| B. | value of moment adjacent to yield zone is less than yield moment up to hinged length of structural member |
| C. | value of moment adjacent to yield zone is half the yield moment up to hinged length of structural member |
| D. | value of moment adjacent to yield zone is equal to yield moment up to hinged length of structural member |
| Answer» B. value of moment adjacent to yield zone is less than yield moment up to hinged length of structural member | |
| 5. |
Plastic hinge behaves like a ______ |
| A. | friction mechanical hinge except that there is always a fixed moment constraint |
| B. | frictionless mechanical hinge except that there is no fixed moment constraint |
| C. | friction mechanical hinge except that there is no fixed moment constraint |
| D. | frictionless mechanical hinge except that there is always a fixed moment constraint |
| Answer» E. | |
| 6. |
What is plastic hinge? |
| A. | zone of bending due to flexure in a structural member |
| B. | zone of yielding due to flexure in a structural member |
| C. | zone of non-yielding due to flexure in a structural member |
| D. | zone of yielding due to twisting in a structural member |
| Answer» C. zone of non-yielding due to flexure in a structural member | |
| 7. |
Which of the following is true regarding plastic design methods? |
| A. | design needs to satisfy elastic strain compatibility conditions |
| B. | different factor of safety for all parts of the structure |
| C. | saving of material over elastic methods resulting in lighter structures |
| D. | design is effected by temperature changes, settlement of support, etc |
| Answer» D. design is effected by temperature changes, settlement of support, etc | |
| 8. |
Which of the following conditions are true for using plastic method of analysis as per IS 800? |
| A. | members shall not be hot-rolled or fabricated using hot-plates |
| B. | yield stress of steel should not be greater than 450MPa |
| C. | cross section should be unsymmetrical about its axis perpendicular to axis of plastic hinge rotation |
| D. | cross section of members not containing plastic hinges should be plastic and those members containing plastic hinges should be compact |
| Answer» C. cross section should be unsymmetrical about its axis perpendicular to axis of plastic hinge rotation | |
| 9. |
Which of the following are the conditions that stress strain characteristics of steel should obey to ensure plastic moment redistribution? |
| A. | yield plateau should be less than 6 times the yield strain |
| B. | ratio of ultimate tensile stress to yield stress should be less than 1.2 |
| C. | steel should not exhibit strain-hardening capacity |
| D. | elongation on standard gauge length should be more than 15% |
| Answer» E. | |
| 10. |
Which of the following assumptions is not correct for plastic design? |
| A. | plastic hinge rotations are small compared with elastic deformations so all the rotations are concentrated at plastic hinges |
| B. | segments between plastic hinges are rigid |
| C. | influence of normal and shear forces on plastic moments is not considered |
| D. | plane section remains plane after bending and the effect of shear is neglected |
| Answer» B. segments between plastic hinges are rigid | |
| 11. |
Which of the following assumptions is correct for plastic design? |
| A. | material obeys Hooke s law before the stress reaches f<sub>y</sub> |
| B. | yield stress and modulus of elasticity does not have same value in compression and tension |
| C. | material is homogenous and isotropic in both elastic and plastic states. |
| D. | material is not sufficiently ductile to permit large rotations |
| Answer» D. material is not sufficiently ductile to permit large rotations | |