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Ch 14, Fire Streams
5th Edition IFSTA Essentials of Fire Fighting. Card data researched by Taylor Butler. Card data entered by Melody Wallace.
Terms in this set (26)
The process or evolution that changes a liquid into a gaseous state is known as ____________.
The amount of heat energy required to raise the temperature of a specified mass of a substance by one degree is referred to as ________ heat.
What term refers to the quantity of heat absorbed by a substance at the point at which it changes from a liquid to a vapor?
Latent Heat of Vaporization
At 212 degrees F water expands approximately _,___ times its original volume when converted to steam.
When water is converted to steam rather than simply heated to its boiling point, it absorbs the ____ amount of heat.
Water has a greater heat-absorbing capacity than most common extinguishing agents. (true/false)
The total pressure lost while forcing water through pipes, fittings, fire hose, and adapters is referred to as ____ loss.
Usually, the smaller the hose diameter and the longer the hose lay, the ______ the friction loss at a given pressure and flow volume.
When a nozzle is above the pump, there is a pressure ____.
When a nozzle is below the pump, there is a pressure ____.
To prevent water hammer when water is flowing, nozzles, hydrants, valves, and hose clamps should generally be closed ______.
What fire stream discharges less than 40 GPM including those fed by booster lines?
Fire streams supplied by 1 ½- to 3- inch hose, which flows from 30 to 350 GPM is known as a ________ stream.
The ______ stream discharges more than 350 GPM.
The volume of water discharged is determined by the design of the nozzle and the _____ ________ at the nozzle.
The _____ stream is compact with little shower or spray and has the ability to reach areas that other streams might not reach.
The ___ stream is a fine spray composed of tiny water droplets.
What nozzle allows the nozzle operator to vary the flow rate while maintaining a consistent nozzle pressure?
The rate of discharge from a manually adjustable fog nozzle can be changed by rotating the selector ring to a specific GPM setting. (true/false)
The designed operating pressure for most combination nozzles is ___ psi.
A disadvantage of fog streams is that they may disturb _______ layering if applied incorrectly.
A cellar nozzle is an example of a ______ stream nozzle.
When handling solid-stream nozzles, increasing the nozzle discharge pressure and flow rate _________ nozzle reaction.
The ____ valve is the most common nozzle control valve.
The _____ valve is a nozzle control valve that seats a movable cylinder against a shaped cone to turn off the flow water.
The nozzle control valve that also controls the discharge pattern of the stream is known a rotary control valve. (true/false)
THIS SET IS OFTEN IN FOLDERS WITH...
Ch 09, Forcible Entry
Ch 07, Ropes and Knots
Ch 01, Firefighter Orientation
Ch 18, Protecting Fire Scene Evidence
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