MCQOPTIONS
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| 1. |
%_In Oxyacetylene gas welding, temperature at the inner cone of the flame is around_% |
| A. | 3500°C |
| B. | 3200°C |
| C. | 2900°C |
| D. | 2550°C |
| Answer» C. 2900¬¨‚àûC | |