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Category: terms-definitions

  • Waterway

    Path through which water flows within a hose or pipe.

  • Wall Hydrant

    Hydrant that protrudes through the wall of a building or pump house.

  • Warning Devices

    Any audible or visual devices, such as flashing lights, sirens, horns, or bells, added to an emergency vehicle to gain the attention of drivers of other vehicles.

  • Warning Lights

    Lights on the apparatus designed to attract the attention of other motorists.

  • Waste Line

    Hoseline that is tied off or otherwise secured and is used to handle water in excess of that being used during a relay operation. Also known as a Dump Line.

  • Water Curtain

    Fan-shaped stream of water applied between a fire and an exposed surface to prevent the surface from igniting from radiated heat.

  • Water Department

    Municipal authority responsible for the water supply system in a given community.

  • Water Distribution System

    System designed to supply water for residential, commercial, industrial, and/or fire protection purposes. This water supply is delivered through a network of piping and pressure-developing equipment.

  • Water Hammer

    Force created by the rapid deceleration of water. It generally results from closing a valve or nozzle too quickly.

  • Water Shuttle Operations

    Method of water supply by which tenders/tankers continuously transport water between a fill site and the dump site located near the emergency scene.

  • Wagon

    (1) Water supply piece of apparatus in a two-piece engine company. (2) Special piece of fire apparatus that carries a large quantity of hose.

  • Undercarriage

    Portion of a vehicle’s frame that is located beneath the vehicle.