MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
The plastic deformation is generally confined to the low-index planes, which have a higher density of atoms per unit area than the high-index planes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Find the atomic density (atoms per unit area) for (110) plane of FCC lattice? (Given that the lattice parameter is a). |
| A. | 2/ 2a<sup>2</sup> |
| B. | 1/ 2a<sup>2</sup> |
| C. | 2/ 3a<sup>2</sup> |
| D. | 3/ 3a<sup>2</sup> |
| Answer» B. 1/ 2a<sup>2</sup> | |
| 3. |
Find the atomic density (atoms per unit area) for (111) plane of BCC lattice?
|
| A. | 1/ 3a<sup>2</sup> |
| B. | 4/ 3a<sup>2</sup> |
| C. | 2/ 3a<sup>2</sup> |
| D. | 3/a<sup>2</sup> |
| Answer» B. 4/ 3a<sup>2</sup> | |
| 4. |
The atomic packing efficiency of FCC and Simple cubic is __________ |
| A. | 74% and 52% |
| B. | 74% and 68% |
| C. | 68% and 52% |
| D. | 68% and 74% |
| Answer» B. 74% and 68% | |
| 5. |
Stacking sequence for Face-centered cubic structure is ____________ |
| A. | ABABABAB |
| B. | ABCABCABC |
| C. | AAAAAAAA |
| D. | ABABCABABC |
| Answer» C. AAAAAAAA | |
| 6. |
Stacking sequence for Hexagonal closed packed structure is ____________ |
| A. | ABABABAB |
| B. | ABCABCABC |
| C. | AAAAAAAA |
| D. | ABABCABABC |
| Answer» B. ABCABCABC | |
| 7. |
Find the effective number of atoms in Face-centered cubic lattice? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 8. |
Find the effective number of atoms in Body-centered cubic lattice? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 9. |
The Miller indices of the given plane in the hexagonal closed packed system are equal to ________
|
| A. | n<a href="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-plastic-deformation-concept-crystal-geometry-2-q1.png"><img alt="The hexagonal closed packed system are equal to (011 1) in Miller indices" class="alignnone size-full wp-image-265584" height="295" sizes="(max-width: 323px) 100vw, 323px" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-plastic-deformation-concept-crystal-geometry-2-q1.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-plastic-deformation-concept-crystal-geometry-2-q1.png 323w, https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-plastic-deformation-concept-crystal-geometry-2-q1-300x274.png 300w" width="323"/></a> |
| B. | ((01 bar{1}1) ) |
| C. | ((0 bar{1} bar{11}) ) |
| D. | (1000) |
| E. | (1100) |
| Answer» B. ((01 bar{1}1) ) | |