MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Strength Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A square steel bar of 10mm side and 5m length is subjected to a load whereupon it absorbs a strain energy of 100J. what is its modulus of resilience? |
| A. | 1/5 N-mm/mm3 |
| B. | 25 N-mm/mm3 |
| C. | 1/25 N-mm/mm3 |
| D. | 5 N-mm/mm3 |
| Answer» B. 25 N-mm/mm3 | |
| 2. |
A 1m long bar of uniform section extends 1mm under limiting axial stress of 200N/mm2. What is the modulus of resilience for the bar? |
| A. | 0.1 units |
| B. | 1 units |
| C. | 10units |
| D. | 100units |
| Answer» B. 1 units | |
| 3. |
A steel has its yield strength of 200N/mm2 and modulus of elasticity of 1x105MPa. Assuming the material to obey hookes law up to yielding, what will be its proof resilience? |
| A. | 0.8 N/mm2 |
| B. | 0.4 N/mm2 |
| C. | 0.2 N/mm2 |
| D. | 0.6 N/mm2 |
| Answer» D. 0.6 N/mm2 | |
| 4. |
The property by which an amount of energy is absorbed by material without plastic deformation is called __________ |
| A. | Toughness |
| B. | Impact strength |
| C. | Ductility |
| D. | Resilience |
| Answer» E. | |
| 5. |
The mathematical expression for resilience ‘U’ is __________ |
| A. | U = σ2/E x volume |
| B. | U = σ2/3E x volume |
| C. | U = σ2/2E x volume |
| D. | U = σ/2E x volume |
| Answer» D. U = σ/2E x volume | |
| 6. |
The maximum strain energy stored at elastic limit is __________ |
| A. | Resilience |
| B. | Proof resilience |
| C. | Elasticity |
| D. | Malleability |
| Answer» C. Elasticity | |
| 7. |
The strain energy stored in a specimen when stained within the elastic limit is known as __________ |
| A. | Resilience |
| B. | Plasticity |
| C. | Malleability |
| D. | Stain energy |
| Answer» B. Plasticity | |
| 8. |
The ability of a material to absorb energy when elastically deformed and to return it when unloaded is called __________ |
| A. | Elasticity |
| B. | Resilience |
| C. | Plasticity |
| D. | Strain resistance |
| Answer» C. Plasticity | |
| 9. |
A_SQUARE_STEEL_BAR_OF_10MM_SIDE_AND_5M_LENGTH_IS_SUBJECTED_TO_A_LOAD_WHEREUPON_IT_ABSORBS_A_STRAIN_ENERGY_OF_100J._WHAT_IS_ITS_MODULUS_OF_RESILIENCE_??$ |
| A. | 1/5 N-mm/mm<sup>3</sup> |
| B. | 25 N-mm/mm<sup>3</sup> |
| C. | 1/25 N-mm/mm<sup>3</sup> |
| D. | 5 N-mm/mm<sup>3</sup> |
| Answer» B. 25 N-mm/mm<sup>3</sup> | |
| 10. |
A 1m long bar of uniform section extends 1mm under limiting axial stress of 200N/mm2. What is the modulus of resilience for the bar? |
| A. | 0.1 units |
| B. | 1 units |
| C. | 10units |
| D. | 100units |
| Answer» B. 1 units | |
| 11. |
A steel has its yield strength of 200N/mm2 and modulus of elasticity of 1x105MPa. Assuming the material to obey hookes law up to yielding, what will be its proof resilience ? |
| A. | 0.8 N/mm<sup>2</sup> |
| B. | 0.4 N/mm<sup>2</sup> |
| C. | 0.2 N/mm<sup>2</sup> |
| D. | 0.6 N/mm<sup>2</sup> |
| Answer» D. 0.6 N/mm<sup>2</sup> | |
| 12. |
Resilience of a material plays important role in which of the following? |
| A. | Thermal stress |
| B. | Shock loading |
| C. | Fatigue |
| D. | Pure static loading |
| Answer» C. Fatigue | |
| 13. |
The property by which an amount of energy is absorbed by a material without plastic deformation, is called |
| A. | Toughness |
| B. | Impact strength |
| C. | Ductility |
| D. | Resilience |
| Answer» E. | |
| 14. |
What is the modulus of resilience? |
| A. | The ratio of resilience to volume |
| B. | The ratio of proof resilience to the modulus of elasticity |
| C. | The ratio of proof resilience to the strain energy |
| D. | The ratio of proof resilience to volume |
| Answer» E. | |
| 15. |
The mathematical expression for resilience ‘U’ is$ |
| A. | U = σ<sup>2</sup>/E x volume |
| B. | U = σ<sup>2</sup>/3E x volume |
| C. | U = σ<sup>2</sup>/2E x volume |
| D. | U = σ/2E x volume |
| Answer» D. U = ‚âà√¨‚àö√¢/2E x volume | |
| 16. |
The maximum strain energy stored at elastic limit is |
| A. | Resilience |
| B. | Proof resilience |
| C. | Elasticity |
| D. | Malleability |
| Answer» C. Elasticity | |
| 17. |
The strain energy stored in a specimen when stained within the elastic limit is known as |
| A. | Resilience |
| B. | Plasticity |
| C. | Malleability |
| D. | Stain energy |
| Answer» B. Plasticity | |
| 18. |
The ability of a material to absorb energy when elastically deformed and to return it when unloaded is called |
| A. | Elasticity |
| B. | Resilience |
| C. | Plasticity |
| D. | Strain resistance |
| Answer» C. Plasticity | |