When medium gas welding, which filter lens number should be used?

When medium gas welding, which filter lens number should be used?

• A. 2
• B. 4
• C. 6
• D. 8

Answer: (C)

When performing medium gas welding, it is essential to use the correct filter lens to protect your eyes from the intense light and ultraviolet radiation produced during the welding process. A filter lens number of 6 is appropriate for medium gas welding applications because it provides a suitable level of shade to prevent eye strain and damage while allowing sufficient visibility to see the weld pool and surrounding area clearly. The shade number corresponds to the level of darkness of the lens; higher numbers indicate darker lenses. A shade number of 6 is generally recommended specifically for activities such as gas welding, where the brightness is significant but not as extreme as in other welding methods like arc welding, which would require darker filters. This ensures that welders can work comfortably and safely while maintaining the ability to monitor their progress effectively. Using a shade lens that is too light may not adequately protect the eyes from harmful rays, while opting for a lens that is too dark could hinder visibility, making it difficult to perform the welding operation accurately.

When performing medium gas welding, it is essential to use the correct filter lens to protect your eyes from the intense light and ultraviolet radiation produced during the welding process. A filter lens number of 6 is appropriate for medium gas welding applications because it provides a suitable level of shade to prevent eye strain and damage while allowing sufficient visibility to see the weld pool and surrounding area clearly.

The shade number corresponds to the level of darkness of the lens; higher numbers indicate darker lenses. A shade number of 6 is generally recommended specifically for activities such as gas welding, where the brightness is significant but not as extreme as in other welding methods like arc welding, which would require darker filters. This ensures that welders can work comfortably and safely while maintaining the ability to monitor their progress effectively.

Using a shade lens that is too light may not adequately protect the eyes from harmful rays, while opting for a lens that is too dark could hinder visibility, making it difficult to perform the welding operation accurately.