Which of the following is a component of a BLEVE?

A Boiling Liquid Expanding Vapor Explosion (BLEVE) occurs when a vessel containing pressurized flammable liquid is subjected to sufficient external heating, causing the liquid to boil and generate vapor. This process can lead to a catastrophic explosion if the pressure within the vessel exceeds its structural integrity, resulting in the rapid release of the vapor and any flammable contents.

The correct choice indicates that the component essential for a BLEVE is indeed a pressurized flammable liquid vessel. This vessel is critical because it not only contains the flammable liquid under pressure but also plays a pivotal role in the conditions that lead to a BLEVE when exposed to heat sources, such as fire. The combination of the pressurized state of the liquid and the potential for rapid expansion of vapor makes the presence of this component vital in discussions about BLEVE scenarios.

The other options do not directly contribute to the definition or mechanics of a BLEVE. Solid combustible material may play a role in an overall fire scenario but is not a requirement for a BLEVE to occur. A water source is often used in firefighting to cool surrounding areas but does not directly constitute a component of a BLEVE itself. Similarly, while fire extinguishers are critical tools for controlling fires, they are not part