MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Lack of symmetry in crack shows anisotropy in a material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Inclusions don’t affect formability of materials. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
In the _____ test, the specimen is bent between two rollers until an angle between 30° to 45° is reached. |
| A. | Free bending test |
| B. | Olsen cup test |
| C. | Swift cup test |
| D. | Fukui conical cup test |
| Answer» B. Olsen cup test | |
| 4. |
LACK_OF_SYMMETRY_IN_CRACK_SHOWS_ANISOTROPY_IN_A_MATERIAL.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Inclusions don’t affect formability of materials?# |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
What is the value of lankford coefficient (r) for good deep drawable material? |
| A. | ≤ 1 |
| B. | ≤ 2 |
| C. | ≤ 3 |
| D. | ≤ 4 |
| Answer» C. ‚Äö√Ñ√∂‚àö¬¢¬¨√ü 3 | |
| 7. |
In the _____ test, the specimen is bent between two rollers until an angle between 30° to 45° is reached.$ |
| A. | Free bending test |
| B. | Olsen cup test |
| C. | Swift cup test |
| D. | Fukui conical cup test |
| Answer» B. Olsen cup test | |
| 8. |
Formability of sheet metal ____ with an increase in normal anisotropy. |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Varies independently |
| Answer» B. Decreases | |
| 9. |
Erichsen value of formability ______ with the thickness of the metal sheet. |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First increases and then decreases |
| Answer» B. Decreases | |
| 10. |
______ increases the formability of the metal sheet. |
| A. | Annealing |
| B. | Cold working |
| C. | Inclusions |
| D. | Grain coarsening |
| Answer» B. Cold working | |
| 11. |
What is the reason of orange-peel effect? |
| A. | Coarse grain structure |
| B. | Fine grain structure |
| C. | Inclusions |
| D. | Impurities |
| Answer» B. Fine grain structure | |
| 12. |
Which instrument is used to measure formability? |
| A. | Universal testing machine |
| B. | Impact testing machine |
| C. | Erichsen machine |
| D. | Fatigue testing machine |
| Answer» D. Fatigue testing machine | |
| 13. |
The ability of a metal workpiece to undergo plastic deformation without being damaged is known as ____ |
| A. | Formability |
| B. | Stiffness |
| C. | Resilience |
| D. | Yield strength |
| Answer» B. Stiffness | |