What kind of personal protective equipment (PPE) is mandatory for participants in live fire training?

Turnout gear, helmets, gloves, and breathing apparatus are essential for participants in live fire training because they provide the necessary protection against the inherent dangers of working with live fire. This type of training involves exposure to high temperatures, smoke, flames, and potentially hazardous materials, which require robust protective measures.

Turnout gear is designed specifically to insulate against heat and prevent burns. Helmets protect against falling objects and head injuries. Gloves safeguard the hands from heat and sharp objects, while the breathing apparatus is crucial in environments where smoke or toxic gases may be present, ensuring that participants can perform safely and effectively.

Other options, such as basic clothing or casual work attire, do not offer adequate protection and could result in severe injury in a live fire environment. The combination of specialized PPE listed in the correct answer ensures that individuals are well-equipped to handle the risks associated with live fire training scenarios effectively.