MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials and Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
At what temperature does eutectoid reaction occur? |
| A. | 418<sup>o</sup>C |
| B. | 666<sup>o</sup>C |
| C. | 723<sup>o</sup>C |
| D. | 928<sup>o</sup>C |
| Answer» D. 928<sup>o</sup>C | |
| 2. |
How much austenite does eutectic reaction form? |
| A. | 4.3% |
| B. | 6.67% |
| C. | 11.28% |
| D. | 17.89% |
| Answer» B. 6.67% | |
| 3. |
Peritectic reactions are applicable for carbon contents up to _________ |
| A. | 0.1% |
| B. | 0.26% |
| C. | 0.55% |
| D. | 0.96% |
| Answer» D. 0.96% | |
| 4. |
What is the solubility of ferrite at 0oC? |
| A. | 0.1% |
| B. | 0.02% |
| C. | 0.005% |
| D. | 0.0004% |
| Answer» D. 0.0004% | |
| 5. |
At what temperature does ferrite melt? |
| A. | 1674 F |
| B. | 1990 F |
| C. | 2541 F |
| D. | 2800 F |
| Answer» E. | |
| 6. |
The eutectic point in the iron-iron carbide phase diagram occurs at __________ weight % composition of carbon. |
| A. | 0.022 |
| B. | 0.77 |
| C. | 2.11 |
| D. | 4.30 |
| Answer» E. | |