Firefighting Flashcards
1
Q
What are the four elements of the fire tetrahedron?
A
Oxygen
Heat
Fuel
Chain Reaction
2
Q
At what percent is atmospheric O2?
A
19.5%
3
Q
At what percent is enough to sustain flames?
A
10-15%
4
Q
At what percent is just enough for objects to smolder?
A
3%
5
Q
What are the different heat transfer methods?
A
Conduction
Convection
Radiation
6
Q
What is the fuel and preferred agent of a Class A fire?
A
Paper, wood, rags, mattresses, etc
Water
7
Q
What is the fuel and preferred agent of a Class B fire?
A
Flammable liquids, paint, alcohol, etc
AFFF, PKP, HALON
8
Q
What is the fuel and preferred agent of a Class C fire?
A
Electronics, motor controllers, etc
CO2
9
Q
What is the fuel and preferred agent of a Class D fire?
A
Special hazards, metals, etc
Jettison
