MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which dimension defect are interfacial defects? |
| A. | 2 dimension |
| B. | 1 dimension |
| C. | 3 dimension |
| D. | 4 dimensionView answer |
| Answer» B. 1 dimension | |
| 2. |
What will be the interfacial energy for domain wall? |
| A. | Greatest compared to other interfacial defects |
| B. | Least compared to other interfacial defects |
| C. | Less than external surface but more than other interfacial defects |
| D. | Less than the external surface and grain boundary but more than other interfacial defectsView answer |
| Answer» C. Less than external surface but more than other interfacial defects | |
| 3. |
WHAT_WILL_BE_THE_INTERFACIAL_ENERGY_FOR_DOMAIN_WALL??$ |
| A. | Greatest compared to other interfacial defects |
| B. | Least compared to other interfacial defects |
| C. | Less than external surface but more than other interfacial defects |
| D. | Less than the external surface and grain boundary but more than other interfacial defects |
| Answer» C. Less than external surface but more than other interfacial defects | |
| 4. |
Which_dimension_defect_are_interfacial_defects?$ |
| A. | 2 dimension |
| B. | 1 dimension |
| C. | 3 dimension |
| D. | 4 dimension |
| Answer» B. 1 dimension | |
| 5. |
Interfacial defect does not include which of the following defect? |
| A. | Grain boundary |
| B. | Twin boundary |
| C. | Phase boundary |
| D. | Volume defect |
| Answer» E. | |
| 6. |
Volume defect or bulk defects are which dimension defect? |
| A. | 1 dimension |
| B. | 2 dimension |
| C. | 3 dimension |
| D. | 4 dimension |
| Answer» D. 4 dimension | |
| 7. |
Which type of boundary causes a constant angle of tilt between lattice planes of the same type in adjacent regions of the sample? |
| A. | Twinning boundary |
| B. | Tilt boundary |
| C. | Grain boundary |
| D. | Domain wall |
| Answer» C. Grain boundary | |
| 8. |
What is the density of polycrystalline specimen virtually identical to? |
| A. | Singe crystal of different material |
| B. | Single crystal of same material |
| C. | Different crystal of different material |
| D. | Different crystal of same material |
| Answer» C. Different crystal of different material | |
| 9. |
Which type of boundary exists in multiphase materials across which there is a sudden change in physical/chemical properties? |
| A. | Phase boundary |
| B. | Chain folded layer |
| C. | Domain wall |
| D. | Grain boundary |
| Answer» B. Chain folded layer | |
| 10. |
In polymeric material the surface of which type of layer is considered to be an interfacial defect? |
| A. | Chain ends |
| B. | Short side branches |
| C. | Main chain unit |
| D. | Chain folded layer |
| Answer» E. | |
| 11. |
At room temperature what is an approximate order of vibration frequency in vibration per second? |
| A. | 1013 |
| B. | 1010 |
| C. | 104 |
| D. | 107 |
| Answer» B. 1010 | |
| 12. |
Annealing twins which are found in metal have which type of crystal structure? |
| A. | BCC |
| B. | FCC |
| C. | HCP |
| D. | HCP and BCC |
| Answer» C. HCP | |