MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. | for (110) plane of FCC lattice? (Given that the lattice parameter is a).a) 2/√2a2 |
| B. | 1/√2a2 |
| C. | 2/√3a2 |
| D. | 3/√3a2 |
| Answer» B. 1/√2a2 | |
| 3. |
Find the atomic density (atoms per unit area) for (111) plane of BCC lattice?Given that the lattice parameter is a. |
| A. | for (111) plane of BCC lattice?Given that the lattice parameter is a.a) 1/√3a2 |
| B. | 4/√3a2 |
| C. | 2/√3a2 |
| D. | √3/a2 |
| Answer» B. 4/√3a2 | |
| 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. |
For hexagonal closed packed structure ideal c/a ratio is equal to _____ |
| A. | 1 |
| B. | 2 |
| C. | 1.633 |
| D. | 1.33 |
| Answer» D. 1.33 | |
| 6. |
Stacking sequence for Face-centered cubic structure is ____________ |
| A. | ABABABAB……… |
| B. | ABCABCABC……… |
| C. | AAAAAAAA |
| D. | ABABCABABC |
| Answer» C. AAAAAAAA | |
| 7. |
Stacking sequence for Hexagonal closed packed structure is ____________ |
| A. | ABABABAB……… |
| B. | ABCABCABC……… |
| C. | AAAAAAAA |
| D. | ABABCABABC |
| Answer» B. ABCABCABC……… | |
| 8. |
Find the effective number of atoms in Face-centered cubic lattice? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 9. |
Find the effective number of atoms in Body-centered cubic lattice? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 10. |
The Miller indices of the given plane in the hexagonal closed packed system are equal to ________Given that a1, a2, a3, are three base axes, and b1 is the vertical axis of the HCP structure. |
| A. | \((01\bar{1}1)\) |
| B. | \((0\bar{1}\bar{11})\) |
| C. | (1000) |
| D. | (1100) |
| Answer» B. \((0\bar{1}\bar{11})\) | |