Wiki Pages


  • Trendelenburg position

    The position in which a patient is placed on his back with legs raised and head lowered; also called shock position.

  • triage

    A system used for categorizing and sorting patients according to the severity of their problems.

  • tricuspid valve

    The valve between the right atrium and right ventricle.

  • trimester

    Period of three months.

  • Triple combination engine company

    apparatus carries water, pumps water, carries hose and other equipment

  • Triple Hydrant

    Fire hydrant having three outlets, usually two 2 1/2-inch outlets and one 4 1/2-inch outlet.

  • Triple Lay ("Triple Fold", "Triple Load")

    A method of loading preconnected attack line into a hose bed or crosslay, often facilitating rapid hose deployment in a pre-flaked configuration.

  • Triple-Combination Pumper

    Fire department pumper that carries a fire pump, hose and a water tank.

  • trismus

    A spasm of the jaw muscles causing the teeth to be clenched shut, characteristic of tetanus.

  • Truck company

    a group of firefighters assigned to an apparatus that carries ladders, forcible entry tools, possibly extrication tools and salvage covers, and who are otherwise equipped to perform rescue, ventilation, overhaul and other specific functions at fires; also called "ladder company".

  • Truckie

    Person who works on a Ladder Truck.

  • Truss

    A wooden or metal structural unit made up of one or more triangles in a flat pane. Because of the inherent strength of the triangle within its structure, when a truss is intact it is much stronger than the individual Read on! →

  • turgor

    Fluid filled; the normal state of turgidity and tension. esp. in tissues.

  • Turn Around

    A widened part of a fire break used for turning vehicles around, also used as a safe area during entrapment.

  • Turnout gear

    The protective clothing worn by firefighters, made of a fire-resistant material such as Nomex or Aramid, and designed to shield against extreme heat. Sometimes called bunker gear. See PPE. Includes helmet, jacket and boots, and some departments include fire-resistant pants.

  • Turnout Gear

    The protective clothing worn by firefighters

  • Turntable

    rotating base of an aerial ladder that permits the ladder to be elevated and extended in any direction from a fixed location.

  • Turret Pipe

    Large master stream appliance mounted on a pumper or trailer and connected directly to a pump. Also called a Deck Gun or Deck Pipe.

  • Two-in, two-out

    Refers to the standard safety tactic of having one team of two firefighters enter a hazardous zone (IDLH), while at least two others stand by outside in case the first two need rescue ? thus requiring a minimum of four Read on! →

  • Two-Stage Centrifugal Pump

    Centrifugal pump with two impellers.

  • Type 1 Construction, AKA Fire Resistive Construction

    Maintains its structural integrity during a fire and is intended to allow occupants time to exit the building. Materials mainly consist of Reinforced Concrete, with structural members protected by blown on insulation and automatic sprinklers. Fire resistant compartmentalization provided by Read on! →

  • Type 1 Construction: Strengths and Weaknesses

    Strengths: Resists direct flame impingement, Confines Fire Well, Little Collapse Hazard, Impervious to Water Damage. Weaknesses: Difficult to breach, Difficult to Ventilate, Massive Debris Following Collapse, Floors Ceilings and walls retain heat.

  • Type 2 Construction AKA Non-Combustible

    Same building construction as type 1 but lacking fire resistant blown on insulation. All building materials are fire rated. "All metal" buildings fall into this category. Primary fire attack is room and contents. Heat build up can cause structural members Read on! →

  • Type 2 Construction: Strengths and Weaknesses

    Strengths: Almost as resistive to fire as Type 1, Confines Fire Well, Almost as structurally stable as type 1, easier to vertically ventilate than type 1. Weaknesses: Difficult to breach, Unprotected steel structural components can fail due to heat, Roof Read on! →

  • Type 3 Construction: AKA Ordinary Construction

    Structural members must be made of noncombustible materials. Interior structures however are almost entirely made of wood in smaller dimensions than heavy timber. Primary fire concern is smoke and heat spreading through hidden concealed spaces.

  • Type 3 Construction: Strengths and Weaknesses

    Strengths: Resists Fire Spread from the outside, Relatively Easy to vertically ventilate. Weaknesses: Interior structural members vulnerable to fire involvement, Fire Spread potential through concealed spaces, Susceptible to water damage.

  • Type 4 Construction: AKA Heavy Timber Construction

    Outside and structural materials be made from non-combustible or minimally combustible materials. Interior structures are made of solid or laminated wood with NO CONCEALED SPACES. Wood dimensions large enough to be heavy timber. Used in old factories, Mills, and warehouses. Read on! →

  • Type 4 Construction: Strengths and Weaknesses

    Strengths:Resists collapse due to flame impingement of heavy beams. Structurally Stable, Relatively easy to vertically or horizontally ventilate. Relatively easy to breach, Manageable debris following collapse. Weaknesses: Susceptible to fire spread from the outside, Potential for fire spread to other Read on! →

  • Type 5 Construction: AKA Wood Frame Construction

    outside, and inside, structural and finished materials almost entirely made of wood in smaller dimensions than that of heavy timber. Presents almost unlimited potential for fire spread interior and fire spread to near by structures. Fire spread can move from Read on! →

  • Type 5 Construction: Strengths and Weaknesses

    Strengths: Easily breached, Easy to ventilate, Resistant to collapse from earthquakes due to light weight and flexibility. Collapse debris relatively easy to manage. Weaknesses: Susceptible to fire spread fro outside, Susceptible to rapid flame spread inside, Susceptible to total collapse Read on! →

  • Type I Engine

    A fire engine designed primarily for fighting fires in structures accessible from roads.

  • Type I, II, III, IV, V Building

    U.S. classification system for fire resistance of building construction types, including definitions for "resistive" Type I, "non-combustible" Type II, "ordinary" Type III, heavy timber Type IV, and "frame construction" Type V (i.e., made entirely of wood).