The best way to avoid radiation exposure is by:

• A. Using shielding, maintaining distance, and using proper PPE
• B. Increasing welding current
• C. Working faster to reduce exposure time
• D. All of the above

Answer: (D)

The main idea is to minimize welding radiation exposure by using multiple protection layers: barriers between you and the arc, keeping as much distance as practical, and wearing proper PPE, while also reducing the time you are exposed at the arc. Shielding blocks much of the ultraviolet and infrared radiation emitted by the arc, lowering what reaches your eyes and skin. Maintaining distance reduces exposure because radiation intensity drops rapidly with distance. PPE, such as a properly shaded welding helmet, gloves, and protective clothing, protects the eyes and skin from remaining radiation. Additionally, spending less time at the arc lowers the total dose you receive over a welding job, even if other protections are in place. Increasing welding current, on the other hand, tends to increase the radiation produced, so it would not help reduce exposure. So the safest approach is to combine shielding, distance, PPE, and minimizing exposure time rather than increasing current.