Flashcards in Firefighting Fundamentals Deck (20)
Primary duty of a firefighter?
Secondary responsibility of a firefighter?
To extinguish the fires and limit the damage to the aircraft, shipboard, airfield installed equipment, and or airfield structures.
Fire triangle includes?
What has the fire triangle been replaced in the fire fighting and protection industry by?
The fire tetrahedron
What has research in the past 30 years indicated?
The presence of a 4th critical element which is the chemical chain reaction that takes place in a fire and allows the fire to both sustain itself and grow.
Fires are divided into how many classes?
Occur in combustible materials that produce an ash such as burning wood, cloth, and fibrous materials?
Class Alpha fires
Occur with flammable liquid substances such as gasoline, jet fuel, oil, and other petroleum based products?
Class bravo fires
Are energized electrical fires that are attacked by using non-conductive agents?
Class Charlie fires
Combustible metals such as magnesium and titanium?
Class delta fires
Use H2O in large quantities in high velocity fog to extinguish?
Use AFFF, Halon 1211, Purple K Powder, and Carbon Dioxide to extinguish?
Use Energized - CO2, Halon, PKP, and H2O in fog patterns
Deenergized - treat as a Class Alpha, Bravo, or Delta fire?
Used H2O OR AFFF to extinguish?
Consists primarily of synthetic fluorocarbon surfactant. Three percent and six percent are approved for naval use?
Not generally considered to be a suitable agent for use in combating large aircraft fuel fires without addition of either foam agents or surfactants?
Intended primarily for use on class B and C fires; however it is affective in class A fires. Colorless and faintly sweet smelling?
Intended for primary use on class B and C fires; a colorless odorless gas that is appox. One and one-half times heavier than air?
Carbon dioxide portable extinguishing units
Intended primarily for use on class B fires. It's principle chemical is a dry chemical that extinguishes flames by breaking the combustion chain, and does not have cooling capabilities?
Potassium Bicarbonate (PKP)