MCQOPTIONS
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MCQOPTIONS
| 1. |
In inert gas metal arc welding, |
| A. | Argon is used for welding thin materials and helium is used for welding thick materials |
| B. | Both argon and helium are used for welding thin materials |
| C. | Both argon and helium are used for welding thick materials |
| D. | Argon is used for welding thick materials and helium is used for welding thin materials |
| Answer» B. Both argon and helium are used for welding thin materials | |