MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Precipitation hardened metal alloys X consists of 95% phase-A and 5% phase-B. If the phase-B is in coarse precipitate form, the strength of the material will be higher as compared to when the phase-B is in fine precipitate form. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Two-phase alloys consist of a hard and soft phase. If the hard phase is Continous along the grain boundary the resultant alloy will be _______ |
| A. | ductile |
| B. | brittle |
| C. | can be ductile or can be brittle |
| D. | depends on the difference of hardness |
| Answer» C. can be ductile or can be brittle | |
| 3. |
Which of the following is not a long-range interaction about the solid solution strengthening? |
| A. | Elastic interaction |
| B. | Long-range order interaction |
| C. | Stacking fault interaction |
| D. | Modulus interaction |
| Answer» D. Modulus interaction | |
| 4. |
Which of the following is not part of Hume Rothery rule? |
| A. | The atomic radius of solute and solvent should not exceed more than 15% |
| B. | The solute and solvent should have the same crystal structure |
| C. | Both the metal have the same valency |
| D. | There should be a significant difference in electronegativity of metals |
| Answer» E. | |
| 5. |
The solubility limit of copper in zinc is much higher than the solubility of zinc in copper. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The metal with strong chemical affinity tends to form a good solid solution. |
| A. | True |
| B. | False |
| Answer» C. | |