Phase I, Block VI - Firefighting Fundamentals

Question 1

What is the primary duty of a firefighter?

Answer 1

Save lives

Question 2

What is the secondary responsibility of a firefighter?

Answer 2

Extinguish fires and limit the damage to aircraft, airfield structures, and/or shipboard and airfield installed equipment.

Question 3

What are the three elements in a fire triangle?

Answer 3

• Heat
• Fuel
• Oxygen

Question 4

What are the four elements in a fire tetrahedron?

Answer 4

• Heat
• Fuel
• Oxygen
• Chemical chain reaction

Question 5

What are the four classes of fire?

Answer 5

• Class Alpha
• Class Bravo
• Class Charlie
• Class Delta

Question 6

What is a Class Alpha fire and what is used to fight this type of fire?

Answer 6

• Combustible materials that produce ash (word, cloth, textiles and fibrous materials, paper)
• Water (H2O) or Aqueous Film Forming Foam (AFFF)

Question 7

What is a Class Bravo fire and what is used to fight this type of fire?

Answer 7

• Flammable liquid substances (gasoline, jet fuels, oil, petroleum based products)
• Aqueous Film Forming Foam (AFFF), Halon 1211, Purple K Powder (PKP), Carbon Dioxide (CO2)

Question 8

What is a Class Charlie fire and what is used to fight this type of fire?

Answer 8

• Electrical fire
• If energized use CO2, halon, PKP, and H2O in fog patterns with minimum distance of 4 ft.
• If de-energized treat as Class A, B, or D fire

Question 9

What is a Class Delta fire and what is used to fight this type of fire?

Answer 9

• Combustible metals (magnesium, titanium)
• H2O in large quantities in high velocity fog, apply water from safe distance or from behind shelter as small explosions can occur