MCQOPTIONS
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| 1. |
While the oxy-acetylene flame produces a temperature of 3200 C, the temperature produced by oxy-hydrogen flame is about __________ C. |
| A. | 1800 |
| B. | 2000 |
| C. | 2400 |
| D. | 3000 |
| Answer» C. 2400 | |