MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Tempered martensite has better ductility than martensite. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
At what temperature is martensite heated in tempering? (in degree Celsius) |
| A. | 727 |
| B. | 627 |
| C. | 327 |
| D. | 927 |
| Answer» B. 627 | |
| 3. |
In which of the following steels there is a chance of quenching cracks being formed? |
| A. | 0.2% carbon |
| B. | 0.4% carbon |
| C. | 0.5% carbon |
| D. | 0.6% carbon |
| Answer» E. | |
| 4. |
Which among the following is the strongest? |
| A. | Austenite |
| B. | Pearlite |
| C. | Bainite |
| D. | Martensite |
| Answer» E. | |
| 5. |
Which of the following is present in bainite? |
| A. | Ferrite |
| B. | Bainite |
| C. | Ledeburite |
| D. | -Ferrite |
| Answer» E. | |
| 6. |
Which of the following is present in spherodite? |
| A. | Pearlite |
| B. | Bainite |
| C. | Ledeburite |
| D. | Ferrite |
| Answer» E. | |
| 7. |
Which is the most tough among the steels given their carbon composition? |
| A. | 0.1% |
| B. | 0.2% |
| C. | 1.5% |
| D. | 2.5% |
| Answer» B. 0.2% | |
| 8. |
Which of the following is present in pearlite? |
| A. | Spherodite |
| B. | Bainite |
| C. | Ledeburite |
| D. | Ferrite |
| Answer» E. | |
| 9. |
In an iron carbon alloy, the mechanical properties are dependent on the micro structure. |
| A. | True |
| B. | False |
| Answer» B. False | |