OHST Practice Exam

What is a significant risk associated with electric arc welding?

1. Radiation Exposure

2. Chemical Burns

3. Ozone Inhalation

4. Noise-Induced Hearing Loss

The correct answer is: Ozone Inhalation

Electric arc welding involves the use of high-temperature arcs to join metals, and one notable consequence of this process is the creation of ozone. The intense heat generated during the welding can lead to the formation of ozone, particularly in environments where there is inadequate ventilation or the presence of other pollutants that can react with the electric arc. Inhalation of ozone can lead to respiratory problems and other health issues, making it a significant risk for welders and those working in proximity to welding operations. Understanding the hazards associated with electric arc welding is essential for implementing effective safety measures and ensuring a safe working environment. While radiation exposure is also a concern in welding due to ultraviolet light and infrared radiation emitted by the welding arc, it is not as specific to the process as ozone inhalation. Chemical burns are related to exposure to welders' materials, like flux or molten metal, which is more of a concern in specific contexts rather than a general risk. Noise-induced hearing loss is a common concern in various noisy work environments, but in the specific context of electric arc welding, the formation of ozone emerges as a distinctly significant risk due to its direct association with the welding process.