Fire hose
A flexible, pressure-resistant tube that conveys water or other firefighting agents from a supply to a fire.
Hydraulic pressure: Pressure exerted by a fluid at rest or in motion. Water pressure drives flow through a hose and resists collapse under operating conditions.
Attack hose: A smaller, flexible fire hose used to deliver water or agent directly to a fire. This hose type is carried and deployed by crews for direct fire suppression.
Firefighting: The organized use of people, equipment, and tactics to control or extinguish fires. Fire hoses are core equipment for applying water and other agents during suppression.
Fire extinguisher: A portable device that discharges an extinguishing agent onto a small or developing fire. Extinguishers carry a limited agent supply, unlike hoses supplied from a continuing water source.
Hose stream: A directed flow of water or firefighting agent discharged from a hose or nozzle. The hose delivers the stream, whose shape and reach depend on its nozzle and flow.
Supply hose: A large-diameter hose used to move water from a source to an apparatus or attack line. Its high capacity supports the smaller lines used near the fire.
Fire engine: A vehicle equipped to transport firefighters, pumps, water, and firefighting equipment. Its pump and hose connections supply pressurized water to deployed lines.
Fire sprinkler: A fixed device that automatically discharges water when heat activates its operating element. Sprinklers protect spaces automatically, while hoses are manually positioned and directed.
Fire hose nozzle: A fitting that shapes and controls the discharge at the end of a fire hose. The nozzle regulates the stream and can alter its pattern and flow rate.
Hose diameter: The width of a hose bore, commonly specified by its nominal internal diameter. Diameter strongly affects flow capacity, friction loss, and handling.