Communication
An urgent message, such as a call for help or evacuation, transmitted over a radio that takes precedence over all normal radio traffic.
Emergency traffic
An immediate and quick search of the structures like to contain survivors.
Primary Search
This type of construction categorized as lightweight construction.
Type V
A fire in ordinary combustibles such as wood, paper, cloth, rubber and many plastics.
Rope used on extension ladders for the purpose of raising a fly section(s).
Halyard
The federal regulatory authority that oversees radio communications in the United States.
Federal Communications Commission (FCC)
An electronic device that detects differences in temperature based on infrared energy and then generates images based on those data.
Thermal Imager
The property describing whether a material will burn and how quickly it will burn.
Combustibility
A fire that involves energized electrical equipment.
Class C Fire
A firefighting procedure for protecting property from further loss following a fire.
Salvage
A two-way radio that is permanently mounted in a fire apparatus.
Mobile Radio
A guide rope used by firefighters that allows them to maintain contact with a fixed point.
Search Rope
Connecting plate made of a thin sheet of steel used to connect the components of the truss.
Gusset Plate
The minimum temperature at which a solid or liquid emits vapor sufficient to form an ignitable mixture with air near the surface of the solid or liquid.
Flash Point
An assessment of the risk to rescuers versus the benefit that can be derived from their indented actions.
Risk/Benefit Analysis
User devices that allow speech and/or hearing impaired citizens to communicate over a telephone system.
TTY/TDD (teletype/telecommunication device for the deaf)
A detailed, systematic search of an area that is conducted after the fire has been suppressed.
Secondary Search
Pieces of wood that are glued together.
Laminated Wood
The action of setting something on fire.
Ignition
A solid column of water.
Solid Stream
A special base station radio that receives messages and signals on one frequency and then automatically retransmits them on a second frequency.
Repeater
Two In/Two Out
An older type of wood-frame construction in which the wall studs extend vertically from the basement of a structure to the roof without any fire stops.
Balloon Fram Construction
The stratification (heat layers) that occurs in a room as a result of fire.
Thermal Layering
Visual display of information and system conditions status that is visible to the wearer.
Heads-Up Display