Eaws Block 6 Firefighting Fundamentals

Front 1

Define Class Charlie Fire

Back 1

Are energized electrical fires that are attacked by using non-conductive agents.

Front 2

Describe Potassium Bicarbonate (Purple-K-Powder or PKP)

Back 2

PKP is intended primarily for use on Class B fires. The principal chemical in PKP is potassium bicarbonate and the dry chemical extinguishes the flame by breaking the combustion chain. It does not have cooling capabilities, therefore it will not result in permanent extinguishing (reflash protection) if ignition sources are present.

Front 3

What are the duties and responsibilities of a fire fighter?

Back 3

The primary duty of the firefighter is saving lives. The secondary responsibility is to extinguish fires and limit the damage to aircraft, shipboard, airfield installed equipment, and/or airfield structures.

Front 4

Describe Class Delta fire

Back 4

Combustible metals such as magnesium and titanium. Effective extinguishing agents are H2O in large quantities in high velocity fog, apply water from a safe distance or from behind shelter as small explosions can occur

Front 5

Describe Class Alpha Fire

Back 5

Occur in combustibles materials that produce an ash such as burning wood and wood products, cloth, textiles, fibrous materials, and paper products. Effective extinguishing agents are water (H2O) or Aqueous Film Forming Foam (AFFF).

Front 6

What is the fire triangle?

Back 6

A simple model that includes heat, fuel, and oxygen as the key components. It has been replaced in the fire fighting and protection industry partially by the fire tetrahedron

Front 7

Define Aqueous Film Forming Foam (AFFF)

Back 7

AFFF liquid concentrates consist primarily of synthetic fluorocarbon surfactant materials that are noncorrosive and have an unlimited shelf life when stored in a protected area. Three-percent and six-percent AFFF concentrate is approved for naval use. Current shipboard equipment requires six percent concentrate.

Front 8

Describe Halon 1211(Bromochlorodifluoromethane)

Back 8

Intended primarily for use on Class B and C fires; however it is effective on Class A fires. Halon 1211 is a colorless, faintly sweet smelling, electrically nonconductive gas that leaves no residue to clean up. Halon 1211 extinguishes fires by inhibiting the chemical chain reaction of the combustion process

Front 9

Describe Carbon Dioxide 15-Pound Portable Units and 50-Pound Wheeled Extinguisher Units

Back 9

These units are intended primarily for use on Class B and Class C fires. CO2 is a colorless, odorless gas that is approximately one and one-half times heavier than air. Fire suppression is accomplished by the displacement of oxygen to below the level that is required to support combustion

Front 10

Describe Water (H2O)

Back 10

Water is not generally considered to be a suitable agent for use in combating large aircraft fuel fires without the addition of either foam agents or surfactants. It has the ability, when properly applied, to cool the aircraft fuselage and provide a heat shield for personnel. Water is also an effective agent for cooling ordnance, batteries, and Class A fires

Front 11

What are the 4 classes of fire?

Back 11

Class Alpha, Class Bravo, Class Charlie and Class Delta

Front 12

What are effective extinguishing agents for energized fires? De-energized fires?

Back 12

Energized: CO2, Halon, PKP, and H2O in fog patterns with a minimum distance of 4 feetDe-energized: Treat as a Class A, B, or D fire

Front 13

What is the fourth critical element of the fire tetrahedron that allows self-sustainment and growth?

Back 13

Chemical Chain Reaction

Front 14

Define Class Bravo fire

Back 14

Occur with flammable liquid substance such as gasoline, jet fuels, oil and other petroleum based products. Effective extinguishing agents are AFFF, Halon 1211, Purple K Powder (PKP) and Carbon Dioxide (CO2)