MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
Retained austenite can be eliminated by tempering. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Martensitic transformation is an irreversible transformation only. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What is habit plane for medium carbon steel for martensitic transformation? |
| A. | (1 1 1) |
| B. | (1 0 0) |
| C. | (2 2 5) |
| D. | (2 5 9) |
| Answer» D. (2 5 9) | |
| 4. |
Retained austenite is sometimes desirable because it ______ |
| A. | Lowers hardness |
| B. | Is nonmagnetic |
| C. | Provide dimensional stability |
| D. | Control strength |
| Answer» D. Control strength | |
| 5. |
Amount of retained austenite _______ with an increase in the amount of carbon in martensite. |
| A. | Increases linearly |
| B. | Decreases |
| C. | Remains constant |
| D. | Increases nonlinearly |
| Answer» E. | |
| 6. |
Which alloying element enhances the Ms temperature? |
| A. | Al |
| B. | Ni |
| C. | Mo |
| D. | Cr |
| Answer» B. Ni | |