MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
Dispersion hardened Systems are limited. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Dispersion hardened alloys show _____ |
| A. | Low yield strength |
| B. | High ductility |
| C. | High strain hardening rates |
| D. | Poor high temperature properties |
| Answer» D. Poor high temperature properties | |
| 3. |
Dispersion particles should not be _____ |
| A. | Hard |
| B. | Numerous |
| C. | Spherical |
| D. | Soft |
| Answer» E. | |
| 4. |
Dispersoids are ____ particles. |
| A. | Fully coherent |
| B. | Semi coherent |
| C. | Partial coherent |
| D. | Incoherent |
| Answer» E. | |
| 5. |
What is aluminium’s recrystallization temperature when strengthened with alumina dispersoids? |
| A. | 0.2Tm |
| B. | 0.3 Tm |
| C. | 0.6 Tm |
| D. | 0.9 Tm |
| Answer» E. | |
| 6. |
DISPERSION_PARTICLES_SHOULD_NOT_BE______?$ |
| A. | Hard |
| B. | Numerous |
| C. | Spherical |
| D. | Soft |
| Answer» E. | |
| 7. |
Dispersion hardened Systems are limited.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Dispersion_hardened_alloys_show______$ |
| A. | Low yield strength |
| B. | High ductility |
| C. | High strain hardening rates |
| D. | Poor high temperature properties |
| Answer» D. Poor high temperature properties | |
| 9. |
Dispersoids are ____ particles? |
| A. | Fully coherent |
| B. | Semi coherent |
| C. | Partial coherent |
| D. | Incoherent |
| Answer» E. | |
| 10. |
Dispersoids get coarsen on high temperatures. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
What is aluminium’s recrystallization temperature when strengthened with alumina dispersoids?$ |
| A. | 0.2T<sub>m</sub> |
| B. | 0.3 T<sub>m</sub> |
| C. | 0.6 T<sub>m</sub> |
| D. | 0.9 T<sub>m</sub> |
| Answer» E. | |
| 12. |
Which dispersoid is added to tungsten matrix? |
| A. | Alumina |
| B. | TiB<sub>2</sub> |
| C. | ZrO<sub>2</sub> |
| D. | Thoria |
| Answer» E. | |
| 13. |
Which dispersoid is mostly used in stainless steel? |
| A. | Alumina |
| B. | TiB<sub>2</sub> |
| C. | WC |
| D. | Thoria |
| Answer» C. WC | |
| 14. |
Which dispersoid is usually added in copper? |
| A. | Thoria |
| B. | Alumina |
| C. | TiB<sub>2</sub> |
| D. | VC |
| Answer» C. TiB<sub>2</sub> | |
| 15. |
Which shape is preferred in dispersoids? |
| A. | Cube |
| B. | Plate like |
| C. | Needle like |
| D. | Spherical |
| Answer» E. | |
| 16. |
Dispersion hardening is a type of ____ |
| A. | Second phase particle strengthening |
| B. | Strain hardening |
| C. | Solid solution hardening |
| D. | Precipitation hardening |
| Answer» B. Strain hardening | |