API 580 Risk Based Inspection Practice Test

What is a major concern associated with flammable events?

1. Thermal radiation

2. Vapor cloud formation

3. Exposure to radiological materials

4. Increased air pollution

The correct answer is: Thermal radiation

Thermal radiation is a significant concern associated with flammable events because it involves the transfer of heat through electromagnetic waves. In the context of a fire or explosion, thermal radiation can cause severe burns or ignite nearby combustible materials, potentially leading to further incidents. The intensity of thermal radiation can decrease with distance, but at close ranges, it can inflict critical damage to both personnel and infrastructure. This makes it essential for emergency response teams to address thermal radiation risks during an incident. While vapor cloud formation is also a serious issue as it can lead to explosions if ignited, it is more related to the risk of creating an explosive atmosphere rather than the direct thermal impact that can occur upon combustion. Exposure to radiological materials is a separate concern and does not typically correlate with flammable events. Increased air pollution, while a valid concern for many industrial activities, is secondary in the immediate context of a flammable event when considering the direct hazards to life and property posed by thermal radiation.