Which of the following describes the primary danger of a BLEVE?

• A. Release of solid particles
• B. Release of flammable gases at high pressure
• C. Release of toxic liquids
• D. Release of safe vapors

Answer: (B)

A Boiling Liquid Expanding Vapor Explosion (BLEVE) occurs when a container holding a pressurized liquid is subjected to heat, leading to the rapid vaporization of the liquid and a subsequent explosive release. This phenomenon is particularly dangerous because it typically involves flammable liquids and gases, which become highly pressurized in the container. Once the pressure exceeds the container's structural integrity, the contents can be violently expelled. The release of flammable gases at high pressure not only creates a risk of fire or explosion but can also result in widespread damage and pose serious hazards to both first responders and the surrounding community.

This understanding of BLEVE highlights the critical importance of managing and monitoring pressurized containers, especially in environments where they can be exposed to elevated temperatures or fire.