NCCER Welding Practice Questions - NCCER Welding (Levels 1-3) Exam

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What is the minimum shade number for an arc welding helmet filter lens recommended by ANSI Z49.1 for shielded metal arc welding (SMAW) at 60-160 amps?

Shade 5 Shade 8 Shade 10 Shade 14

Correct Answer:

Shade 10

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