MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Behaviour knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
With the increase in the degree of stress triaxiality, ductility of material decreases. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Neutron irradiation by neutrons can ___ yield stress and ___ ductility. |
| A. | Increase, increase |
| B. | Increase, decrease |
| C. | Decrease, increase |
| D. | Decrease, decrease |
| Answer» C. Decrease, increase | |
| 3. |
Cast materials show better ductility than wrought materials. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
CAST_MATERIALS_SHOW_BETTER_DUCTILITY_THAN_WROUGHT_MATERIALS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
With the increase in the degree of stress triaxiality, ductility of material decreases.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Neutron_irradiation_by_neutrons_can_____yield_stress_and_____ductility.$ |
| A. | Increase, increase |
| B. | Increase, decrease |
| C. | Decrease, increase |
| D. | Decrease, decrease |
| Answer» C. Decrease, increase | |
| 7. |
A cylindrical specimen having diameter of 12.8 mm is starting and 7.3 mm at the fracture point. What is ductility? |
| A. | 56% |
| B. | 64% |
| C. | 67% |
| D. | 78% |
| Answer» D. 78% | |
| 8. |
Original gauge length of aluminium cylindrical spectrum is 2 inches and fracture length is 2.78 inches. What is the ductility of specimen? |
| A. | 38% |
| B. | 39% |
| C. | 40% |
| D. | 41% |
| Answer» C. 40% | |
| 9. |
As the strain rate increases, the value of ductility ___ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Changes independent of strain rate. |
| Answer» C. Remains constant | |
| 10. |
Which factor decreases the ductility of materials? |
| A. | Annealing |
| B. | Spheroidization |
| C. | Grain refinement |
| D. | Alloying |
| Answer» E. | |
| 11. |
Which crystal structure materials possess the best ductility properties? |
| A. | FCC |
| B. | HCP |
| C. | BCC |
| D. | SC |
| Answer» B. HCP | |
| 12. |
Which factor increases ductility? |
| A. | Cold working |
| B. | Annealing |
| C. | Alloying |
| D. | Inclusions |
| Answer» C. Alloying | |
| 13. |
What is the ductility of commercial pure Titanium? |
| A. | 10% |
| B. | 14% |
| C. | 16% |
| D. | 25% |
| Answer» E. | |
| 14. |
What is the ductility of annealed Cu? |
| A. | 25% |
| B. | 35% |
| C. | 40% |
| D. | 45% |
| Answer» E. | |
| 15. |
Ductility of ceramics is ___ |
| A. | Less than 1% |
| B. | 2 – 4% |
| C. | 4 – 40% |
| D. | More than 40% |
| Answer» B. 2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 4% | |
| 16. |
Which metal has the highest ductility? |
| A. | Silver |
| B. | Gold |
| C. | Platinum |
| D. | Aluminium |
| Answer» D. Aluminium | |
| 17. |
The ability of a material to undergo plastic deformation without fracture when subjected to uniaxial tensile force is ___ |
| A. | Ductility |
| B. | Malleability |
| C. | Tensile Strength |
| D. | Yield Strength |
| Answer» B. Malleability | |