Section A Pt. 1 Flashcards
The temperature at which a liquid fuel will produce vapors sufficient to support continuous combustion once ignited.
Fire Point
Heat may be transferred from one body to another by direct contact of the two bodies or by an intervening heat-conducting medium.
Conduction
The minimum temperature at which a liquid fuel gives off sufficient vapors to form an ignitable mixture with the air near the surface.
Flash Point
The transfer of heat by the movement of air or liquid.
Convection
Occurs when an oxygen-starved fire in an enclosure suddenly gets enough oxygen under conditions that will cause an explosion.
Backdraft
The systematic removal and replacement of heated air, smoke, and gases from a structure with cooler air.
Ventilation
Fires involving ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics.
Class A Fires
Fires involving flammable and combustible liquids and gases such as gasoline, oil, lacquers, paints, mineral spirits, and alcohols.
Class B Fires
Fires involving energized electrical equipment such as household appliances, computers, transformers and overhead transmission lines.
Class C Fires
Fires that involve combustible metals such as aluminum, magnesium, titanium, zirconium, sodium, and potassium.
Class D Fires
When rescuing victims from collapsed buildings firefighters prevent further collapse of the building by using ____ , a process of erecting a series of timbers or jacks to strengthen a
wall or to prevent further collapse.
Shoring
When used in fire service terms, ____ is the velocity of water in a conduit (either pipe or hose) of a certain size. ____ , in the fire service sense, is measured in pounds per square inch (psi).
Pressure
The part of total pressure that is lost while forcing water through pipe, fittings, firehose, and adapters.
Friction Loss
Consists of the search for and extinguishment of hidden or remaining fires; placing the building, its contents, and the fire area in a safe condition and protecting them from the elements; determining the area of origin and cause of the fire; and recognizing and reserving any evidence of arson.
Overhaul
Consists of those methods and operating procedures allied to firefighting that aid in reducing fire, water and, smoke damage during and after fires.
Salvaging
