Odds and ends
Card Set Information
Odds and ends
Boiling liquid expanding vapor explosion Firefighter Safety
Boiling liquid expanding vapor explosion
The process in which liquids are converted to a gas or vapor.
Best way to extinguish class B liquid fires.
Coating the liquid with an agent(foam) so that the liquid vapors cannot escape and mix with air.
Vapor pressure in a closed container
When liquids are held in a closed vessel that is being heated, the liquid inside will eventually boil.
The explosive release of the overcome of pressure against the container holding the flammable liquid.
Violent tank rupture which occurs with nonflammable materials.
Dangers of a BLEVE
Fireball can engulf responders and exposures
Metal parts of the tank can fly considerable distance surrounding area nad be ignited
The shock wave, air blast, or flying metal parts created by a BLEVE can collapse buildings or move responders and equipment
Fire flow requirement
The amount of water required for putting out the fire.
The pressure in the system with no hydrants or water flowing
Pressure in a system after water has begun flowing
How often to test hose
prior to being placed in use and retested annually during its lifetime. Also should be tested after being damaged and after repairs have been made.
A destructive process that identifies weak hose by causing it to burst