MCQOPTIONS
Saved Bookmarks
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. |
Necking takes place after strain hardening. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What region is encountered after elastic deformation on a tensile test? |
| A. | Strain hardening |
| B. | Yielding |
| C. | Necking |
| D. | Fracture |
| Answer» C. Necking | |
| 3. |
What region is first encountered by the material on a tensile test? |
| A. | Elastic |
| B. | Yielding |
| C. | Strain hardening |
| D. | Necking |
| Answer» B. Yielding | |
| 4. |
_____________ occurs during tensile deformation. |
| A. | Compressive stress |
| B. | Strain hardening |
| C. | Forging |
| D. | Shear stress |
| Answer» C. Forging | |
| 5. |
Cracks can’t nucleate at ____________ |
| A. | Grain boundaries |
| B. | Crystal |
| C. | Interfaces |
| D. | Inclusion brittle particles |
| Answer» C. Interfaces | |
| 6. |
WHAT_REGION_IS_FIRST_ENCOUNTERED_BY_THE_MATERIAL_ON_A_TENSILE_TEST??$ |
| A. | Elastic |
| B. | Yielding |
| C. | Strain hardening |
| D. | Necking |
| Answer» B. Yielding | |
| 7. |
Necking takes place after strain hardening.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What_region_is_encountered_after_elastic_deformation_on_a_tensile_test?$ |
| A. | Strain hardening |
| B. | Yielding |
| C. | Necking |
| D. | Fracture |
| Answer» C. Necking | |
| 9. |
Necking is a result of tri-axial tension. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
_____________ occurs during tensile deformation? |
| A. | Compressive stress |
| B. | Strain hardening |
| C. | Forging |
| D. | Shear stress |
| Answer» C. Forging | |
| 11. |
On stressing a material, necking starts at a point of _______________ |
| A. | Plastic instability |
| B. | Higher elastic modules |
| C. | Higher regular arrangement |
| D. | Higher stress |
| Answer» B. Higher elastic modules | |
| 12. |
Titanium aluminum alloys generate cracks due to ___________ particles. |
| A. | Ti<sub>3</sub>Al |
| B. | Fe<sub>3</sub>N |
| C. | CuAl<sub>2</sub> |
| D. | Oxide inclusions |
| Answer» B. Fe<sub>3</sub>N | |
| 13. |
What is nucleation sites in copper? |
| A. | CuAl<sub>2</sub> |
| B. | Fe<sub>3</sub>C |
| C. | Oxide inclusions |
| D. | NiAl |
| Answer» D. NiAl | |
| 14. |
What causes nucleation of crack in steel? |
| A. | CuAl<sub>2</sub> |
| B. | Ti<sub>3</sub>Al |
| C. | Oxides |
| D. | Fe<sub>3</sub>C |
| Answer» E. | |
| 15. |
In aluminum copper system, which causes crack initiation? |
| A. | Fe<sub>3</sub>C |
| B. | CuAl<sub>2</sub> |
| C. | Ti<sub>3</sub>Al |
| D. | NiAl |
| Answer» C. Ti<sub>3</sub>Al | |
| 16. |
Cracks can’t nucleate at ____________$ |
| A. | Grain boundaries |
| B. | Crystal |
| C. | Interfaces |
| D. | Inclusion brittle particles |
| Answer» C. Interfaces | |
| 17. |
Which of the following is not a stage of ductile fracture? |
| A. | Nucleation of crack |
| B. | Growth of crack |
| C. | Coalescence of cracks |
| D. | Development of tensile stresses |
| Answer» E. | |