What shade number is gas welding (medium) 1/8 inch to 1/2 inch?

Prepare for the CHST Worksite Audit Exam with flashcards and multiple choice questions. Each question includes hints and detailed explanations. Ensure you're ready for the test day!

Multiple Choice

What shade number is gas welding (medium) 1/8 inch to 1/2 inch?

Explanation:
Gas welding uses a bright flame, but not as intense as an electric arc, so the protective filter you need is lighter than for arc welding. For a medium-range weld in the 1/8 inch to 1/2 inch size, the standard shade is 5. This shade provides enough protection from the flame’s brightness while still letting you clearly see the weld pool and edges. Using a lighter shade would offer less protection, while a darker shade would make it harder to see what you’re doing.

Gas welding uses a bright flame, but not as intense as an electric arc, so the protective filter you need is lighter than for arc welding. For a medium-range weld in the 1/8 inch to 1/2 inch size, the standard shade is 5. This shade provides enough protection from the flame’s brightness while still letting you clearly see the weld pool and edges. Using a lighter shade would offer less protection, while a darker shade would make it harder to see what you’re doing.

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