Term
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Definition
| Designed to produce a stream as compact as possible with little shower or spray |
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Term
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Definition
| A fine spray composed of tiny water droplets |
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Term
| Latent Heat of Vaporization |
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Definition
| Quantity of heat absorbed by a substance at the point at which it changes from a liquid to a vapor |
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Term
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Definition
| Process of evolution that changes a liquid into a gaseous state |
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Term
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Definition
| At 212 F, water expansion from its original volume when converted to steam |
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Term
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Definition
| Part of total pressure that is lost while forcing water through pipes, fittings, fire hose, and adapters |
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Term
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Definition
| Force created by the rapid deceleration of water causing a violent increase in pressure that can be powerful enough to rupture piping and damage fixtures |
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Term
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Definition
| Discharges less than 40 GPM including those fed by booster lines |
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Term
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Definition
| Supplied by 1 1/2 to 3 inch hose, with flows frm 40 to 350 gpm |
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Term
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Definition
| Discharges more than 350 gpm and is fed by 2 1/2 or 3 inch hoselines or large-diameter hoselines connected to a master stream nozzle |
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Term
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Definition
| Velocity pressure at which watere discharges from the nozzle |
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Term
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Definition
| Stream of water or other water-based extinguishing agent after it leaves the fire hose and nozzle until it reaches the desired point |
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Term
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Definition
| Most common nozzle control valves |
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Term
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Definition
| A stream that has been broken into coarsely divided drops |
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Term
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Definition
| An example of a broken stream nozzle |
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Term
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Definition
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Term
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Definition
| Water's primary way to extinguish a fire |
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Term
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Definition
| One method of using fire streams to reduce heat and provide protection |
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Term
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Definition
| Less prone to clogging with debris |
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Term
| Efficiency at Which Fire Streams Absorbs Heat |
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Definition
| Dependent upon the surface area of the water introduced into the heated environment |
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Term
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Definition
| Used to measure friction loss in a hoseline at different points in a hose layout |
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Term
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Definition
| When a nozzle is above the fire pump |
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Term
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Definition
| When the nozzle is below the fire pump |
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Term
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Definition
| Point at which a fire stream loses its forward velocity and falls into showers of spray that are easily blown away |
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Term
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Definition
| A pattern of the adjustable fog nozzle |
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Term
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Definition
| Has less forward velocity and a shorter reach than the other fog settings |
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Term
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Definition
| A force that pushes back on the person handling the hoseline |
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Term
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Definition
| Nozzle control valve handle; backwards to open it and forward to close it |
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Term
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Definition
| Major types of fire stream patterns |
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Definition
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