Welder Red Seal · Question
According to CSA Z94.3, what is the recommended minimum protective shade for a welding helmet lens when performing Shielded Metal Arc Welding (SMAW) at 125 amperes?
CSA Standard Z94.3 'Eye and Face Protectors' recommends a Shade 10 filter for SMAW operations in the 60 to 160 ampere range, which covers the 125A specified.
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Question: According to CSA Z94.3, what is the recommended minimum protective shade for a welding helmet lens when performing Shielded Metal Arc Welding (SMAW) at 125 amperes?
Answer options:
- Shade 8 ✅ Shade 10
- Shade 12
- Shade 14
Correct answer: Shade 10
Explanation: CSA Standard Z94.3 'Eye and Face Protectors' recommends a Shade 10 filter for SMAW operations in the 60 to 160 ampere range, which covers the 125A specified.
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