Defintions Quiz Truck Flashcards
1.__________________________ — Signal given to the incident commander that a specific area has been checked for victims and none have been found or all found victims have been extricated from an entrapment.
- All Clear
- __________________________ — Open area in the center of a building, extending through two or more stories, similar to a courtyard but usually covered by a skylight, to allow natural light and ventilation to interior rooms.
- Atrium
- __________________________— The temperature at which autoignition occurs through the spontaneous ignition of the gases or vapor given off by a heated material.
- Autoignition Temperature
- __________________________ — Ignition that occurs when a sub- stance in air, whether solid, liquid, or gaseous, is heated sufficiently to initiate or cause self-sustained combustion without an external ignition source.
- Autoignition
- __________________________ — Instantaneous explosion or rapid burning of superheated gases that occurs when oxygen is introduced into an oxygen-depleted confined space. The stalled combustion resumes with explosive force. It may occur because of inadequate or improper ventilation procedures. Very rapid, often explosive burning of hot gases that occurs when oxygen is introduced into an oxygen-depleted con- fined space. It may occur because of inadequate or improper ventilation procedures.
- Back Draft
- ___________________________ — Type of structural framing used in some single-story and multistory wood frame buildings wherein the studs are continuous from the foundation to the roof. There may be no fire stops between the studs.
- Balloon Frame Construction
- _______________________— Open web truss constructed entirely of steel, with steel bars used as the web members.
- Bar Joist
8.________________________— Rapid vaporization of a liquid stored under pressure upon release to the atmosphere following major failure of its containing vessel; failure is the result of over-pressurization caused by an external heat source, which causes the vessel to explode into two or more pieces when the temperature of the liquid is well above its boiling point at normal atmospheric pressure.
- Boiling Liquid Expanding Vapor Explosion (BLEVE)
- ________________________ — Lightweight truss design noted by the bow shape, or curve of the top chord.
- Bowstring Truss
- ______________________ — Amount of heat energy required to raise the temperature of one pound of water one degree Fahrenheit. One Btu = 1.055 kilo joules (kJ).
- British Thermal Unit
- ___________________ —Heel (lower end) of a ladder.
- Butt
- ___________________ — Safety procedure used in rescue work. When rescuers work in a hazardous area at least two rescuers must remain in contact with each other at all times.
- Buddy System
- ______________________ — A steel or aluminum D-shaped snap link device for attaching components of rope rescue systems together.
- Carabiner
- __________________ — Cancer-producing substance.
- Carcinogen
- ____________________ — Temperature scale on which the freezing point is 0 degrees and the boiling point at sea level is 100 degrees. Also known as Centigrade scale.
- Celsius Scale
- _________________ —Movement of smoke being blown out of a ventilation opening only to be drawn back inside by the negative pressure created by the ejector because the open area around the ejector has not been sealed. Also called recirculation.
- Churning
- _________________ — Concealed space between the top floor and the roof of a structure.
- Cockloft
- ____________________ — Device that indicates the explosive levels of combustible gases.
- Combustible Gas Indicator
- ______________________ — An exothermic chemical reaction that is a self-sustaining process of rapid oxidation of a fuel, that produces heat and light.
- Combustion
- _________________________________ — The systematic venting of a structure by controlling which windows and doors are opened at any given time.
- Compartmentalization
21.________________________________— Generic term used to describe a high-energy foam-generation system consisting of an air compressor (or other air source), a water pump, and foam solution that injects air into the foam solution before it enters a hoseline.
- Compressed Air Foam System (CAFS)
- _________________ — Physical flow or transfer of heat energy from one body to another through direct contact or an intervening medium from the point where the heat is produced to another location or from a region of high temperature to a region of low temperature.
- Conduction
- _________________— System of barriers surrounding designated areas at emergency scenes intended to limit the number of persons exposed to the hazard and to facilitate its mitigation. At a major incident there will be three zones — restricted (hot), limited access (warm), and support (cold).
- Control Zone
- _________________ — Transfer of heat by the movement of heated fluids or gases, usually in an upward direction.
- Convection