MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Cu3Al and NiAl are examples of __________ |
| A. | Interstitial solutions |
| B. | Interstitial compounds |
| C. | Electron compounds |
| D. | Valency compounds |
| Answer» D. Valency compounds | |
| 2. |
Au-Cn is an example of _________ solid solution. |
| A. | Interstitial solid solution |
| B. | Random substitutional solid solution |
| C. | Supersaturated solution |
| D. | Ordered substitutional solid solution |
| Answer» E. | |
| 3. |
Which type of solid solution does this figure illustrate? |
| A. | Interstitial solid solution |
| B. | Substitutional solid solution |
| C. | Supersaturated solution |
| D. | Unsaturated solution |
| Answer» B. Substitutional solid solution | |
| 4. |
According to Hume Rothery’s rules, size of atoms must not differ by more than ________ |
| A. | 5% |
| B. | 15% |
| C. | 35% |
| D. | 55% |
| Answer» C. 35% | |
| 5. |
Why are Hume Rothery’s rules followed? |
| A. | Extensive solid solution |
| B. | Liquid solution |
| C. | Weak solid solution |
| D. | Extensive liquid solution |
| Answer» B. Liquid solution | |
| 6. |
Au-Cn is an example of _________ solid solution.$ |
| A. | Interstitial solid solution |
| B. | Random substitutional solid solution |
| C. | Supersaturated solution |
| D. | Ordered substitutional solid solution |
| Answer» B. Random substitutional solid solution | |
| 7. |
Interstitial solutions have a _________ distribution. |
| A. | Random |
| B. | Linear |
| C. | Alternating |
| D. | Dendritic |
| Answer» D. Dendritic | |
| 8. |
Which of the following is a random substitutional solid solution? |
| A. | Cu-Zn |
| B. | Au-Cu |
| C. | Cu2MnAl |
| D. | Carbon in ϒ iron |
| Answer» B. Au-Cu | |
| 9. |
What kind of solid solution is found in a Cu-Ni crystal? |
| A. | Interstitial solid solution |
| B. | Substitutional solid solution |
| C. | Supersaturated solution |
| D. | Unsaturated solution |
| Answer» C. Supersaturated solution | |
| 10. |
A solution of exchange of impurities for solvent atoms is called a _________ |
| A. | Interstitial solid solution |
| B. | Substitutional solid solution |
| C. | Saturated solution |
| D. | Unsaturated solution |
| Answer» C. Saturated solution | |
| 11. |
Dissolution of limited amount of solute in solvent, the solution is a __________ |
| A. | Saturated solution |
| B. | Unsaturated solution |
| C. | Supersaturated solution |
| D. | Oversaturated solution |
| Answer» B. Unsaturated solution | |
| 12. |
For interstitial solid solutions, atomic radii difference must not differ by more than ________ |
| A. | 25% |
| B. | 37% |
| C. | 59% |
| D. | 73% |
| Answer» D. 73% | |
| 13. |
What is formed when the electronegativities of atoms differ? |
| A. | Solid solutions |
| B. | Liquid solution |
| C. | Intermetallic compound |
| D. | Maraging steel |
| Answer» D. Maraging steel | |
| 14. |
According to Hume Rothery’s rules, size of atoms must not differ by more than ________$ |
| A. | 5% |
| B. | 15% |
| C. | 35% |
| D. | 55% |
| Answer» C. 35% | |
| 15. |
Why are Hume Rothery’s rules followed? |
| A. | Extensive solid solution |
| B. | Liquid solution |
| C. | Weak solid solution |
| D. | Extensive liquid solution |
| Answer» B. Liquid solution | |