Q.

Which of the following can be non-low hydrogen process?

A. shielded metal arc welding
B. submerged arc welding
C. gas-shielded metal arc welding
D. flux core arc welding
Answer» A. shielded metal arc welding
Explanation: shielded metal arc welding can be a low hydrogen process or non-low hydrogen process, while submerged arc welding, gas-shielded metal arc welding, flux core arc welding are low hydrogen process.
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