Firefighting Fundamentals Flashcards
What is the fourth component that could cause a fire?
Chemical reaction
3 components required for a fire.
Heat, Fuel and Oxygen
What is a Class A fire?
Ordinary combustible materials (wood, paper, cloth)
Extinguishing a class A fire
Extinguish with water using high or low velocity fog or solid streams.
What is a Class B fire?
Vapor air mixtures from flammable liquids
Extinguishing a Class B fire.
Aqueous film forming foam (AFFF)
Halon 1211
Halon 1301
Purple K Powder (PKP)
What is a Class C fire?
Electrical equipment fire
Extinguishing a Class C fire.
Use a non conductive agent.
PKP
Carbon Dioxide
Halon 1211
Carbon and Halon preferred because of no residue
What is a Class D fire?
Combustible metals
Magnesium, titanium ect.
Extinguishing a Class D fire.
Jettison the burning material overboard.
Or
Apply large amounts of water
Or
Magnesium fire can be smothered with sand