New Mexico Pipe Fitter Journeyman (JPF) Practice Exam

Which of the following hazards are mitigated by wearing proper welding helmets?

1. Hot slag, cold air, and harmful dust

2. Hot slag, spark, and harmful rays

3. Cold metal, high temperatures, and harmful gases

4. Flying debris, sparks, and loud noises

The correct answer is: Hot slag, spark, and harmful rays

Wearing proper welding helmets is essential for protecting against various hazards associated with welding. The correct answer highlights that welding helmets primarily mitigate the dangers of hot slag, sparks, and harmful rays emitted during the welding process. Hot slag is molten metal that can splatter during welding and can cause severe burns or injuries if it comes into contact with skin. The helmet protects the welder's face and neck from these intense droplets. Sparks are another significant hazard, as they can fly off during welding operations. A good welding helmet is designed to shield the welder's face and eyes from these flying sparks, preventing injuries. Harmful rays, specifically ultraviolet (UV) and infrared (IR) radiation, are emitted from the welding arc. These rays can cause serious eye damage, known as "arc eye" or photokeratitis, and can also harm the skin. Welding helmets are equipped with proper filters that block these harmful rays, ensuring the welder's safety. The other answer choices contain elements that are related to different work environments or activities but do not specifically address the primary threats that welding helmets are designed to protect against. For instance, cold air and harmful dust, while potentially relevant in some contexts, are not significant concerns specifically mitigated by welding