MCQOPTIONS
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MCQOPTIONS
| 1. |
Rapid quenching of eutectoid steel ___________ transforms the austenite into martensite. |
| A. | At room temperature |
| B. | Below 320<sup>o</sup>C |
| C. | At 550<sup>o</sup>C |
| D. | Above 723<sup>o</sup>C |
| Answer» E. | |