MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 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. |
Which alloy system shows complete solubility? |
| A. | Cd-Mg |
| B. | Cu-Zn |
| C. | Fe-Ni |
| D. | Cu-Sn |
| Answer» B. Cu-Zn | |
| 2. |
For copper, the ratio between interstitial formation enthalpy and the energy required to create a vacancy is _____________ |
| A. | 3:1 |
| B. | 2:1 |
| C. | 1:1 |
| D. | 1:2 |
| Answer» B. 2:1 | |
| 3. |
In interstitial defect, the atoms surrounding the defect are in the state of tension. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
If the atom is transferred to an interstitial position instead of the surface, then this defect is known as _____ |
| A. | Interstitial |
| B. | Frankel |
| C. | Schottky |
| D. | Vacancy |
| Answer» C. Schottky | |
| 5. |
Which one is not an example of interstitial impurity? |
| A. | Carbon in iron |
| B. | Zinc in brass |
| C. | Hydrogen in Palladium |
| D. | Nitrogen in iron |
| Answer» C. Hydrogen in Palladium | |
| 6. |
Substitutional atoms are generally close in size (approximately 15%) to the parent metal atoms. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which point defect is known as equilibrium defect? |
| A. | Void |
| B. | Dislocation |
| C. | Interstitial |
| D. | Vacancy |
| Answer» E. | |
| 8. |
Which one is a point defect? |
| A. | Dislocation |
| B. | Vacancy |
| C. | Grain boundary |
| D. | Void |
| Answer» C. Grain boundary | |
| 9. |
Which one of the following, is not a method of introducing imperfections in metals? |
| A. | Heating |
| B. | Processing |
| C. | Alloying |
| D. | Crystallization |
| Answer» E. | |