MCQOPTIONS
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| 1. |
The gases used in different types of welding would include __ |
| A. | Oxygen, hydrogen u0026 nitrogen |
| B. | Oxygen, acetylene u0026 argon |
| C. | Oxygen u0026 acetylene |
| D. | Oxygen u0026 Hydrogen |
| Answer» D. Oxygen u0026 Hydrogen | |