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Why do firefighters need to know the rates at which water comes out of fire hydrants?
Wiki User
∙ 11y ago
By knowing the flow rates of fire hydrants in the area, and the residual pressure, firefighters can determine the maximum fire flow available.
The size of a fire determines the amount of fire flow necessary to extinguish the fire.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThey need to know because if the fire is bad, they will need to use a blue or a green one. If the fire isn't bad, they should use a yellow(orange) or a red one.
Wiki User
∙ 13y agoso that they know if they have enough water to take out the fire that is going on
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What comes out of a hydrant?
Water comes out of a hydrant. Firemen use hydrants when they are putting out fires in houses and businesses around town.
When did fire hydrants come into use?
A fire hydrant comes in use when there is a fire by a house, building of anywhere close by. Firefighters will attach the hose to the hydrant to spray the water in the fire. ( I mean, have you ever heard of dragging tons of water around town all day??) I hope this answers your question!
What are fire hydrants used for?
Are you kidding? They supply water to fire hoses. You attach a fire hose and water comes out to put out a fire. Jeez... People these days.
What resources are used when firefighters are fire fighting?
A fireman's greatest resource, of course, is water and the #1 place they connect with that is fire hydrants (why not water hydrants?). Also at the fireman's disposal are trucks with compartments for tools, hoses, the Jaws of Life, breathing apparatuses, extra suits, axes, picks and a growing number of tech devices. Oh yeah, let's not forget those ladders for reaching those stranded at heights!
What are the difference between hydrant and hydrant monitor?
hydrant is the sub part of fire water network from which water shall be discharged to on fire parts, and from where the hydrants gets water is the monitor, i.e from monitor water shall be distributed to hydrants.
Why are fire hydrants made the way they are?
Fire hydrants are made the way they are: 1. Their circular barrel is the strongest shape to resist breaking or denting if a car hits it. This shape is also the cheapest way to manufacture them. 2. Most hydrants have 3 water ports: These face up the street (or whatever), down the street, and out into the street. The biggest water port is called a 'steamer' port to connect to the fire truck pump. (Fire trucks used to have steam-operated engines). 3. The knob-looking part on the top of a hydrant is an 'operating nut' that operates a valve deep underground to let water into the hydrant. Most hydrants have no water in them unless they are being used. When this valve is closed to shut off water to the hydrant, it opens a second valve which allows the water in the hydrant to drain into the ground to prevent water inside the hydrant from freezing solid. This valve is normally open. 4. The hydrant water ports are usually between 24" and 36" above the ground. There are two reasons for this: a. If the ports weren't raised, they would be hard to connect to with snow, brush, or grass around them. b. The covers on the ports are taken off by the firefighters with a wrench with a long-ish handle. These covers are removed by attaching the wrench and then spinning the wrench around and around until the cover comes off. If the ports were any lower down, the spinning wrench would hit the ground and stop spinning. Sometimes the covers are hard to remove, so the wrench handle has to be long. 5. Various towns prefer different styles of hydrants . . . some hydrants at the top curve up to the operating nut. Some are just flattened on top. Inside, though, they do about the same thing. 6. In places where freezing is not a problem, there may be no drain valve, so these hydrants remain full of water. 7. New hydrants can have a "quick connect" adaptor instead of port covers. The firefighters have the same quick connect attachment on their fire hoses . . . they are fast and easy to connect to, and do not ever become 'stuck'. These are often called, "Stortz" connectors.
What is the effect when people line up and wait to fetch water in fire hydrants?
The people will quarrel
Why do firefighters need lots of water?
To fight fires
Why are fire hydrants different colors?
the color of a fire hydrant depends on the amount of water pressure it has when used
Why do firefighters use water to put out fires?
firefighters use water because when water touches something it cools down
What has the author Walter L Picton written?
Walter L Picton has written: 'Water utilities' -- subject(s): Water-pipes, Water utilities, Hydrants, Valves
How would firefighters respond to a natural disaster?
Firefighters would help by sandbagging around places so water cant get in, or they'll sandbag a piece of road so that water will only follow that road. Firefighters will help by bringing their fire trucks around to a flooded or flooding site, and pump up as much water as they can into their fire trucks. Firefighters will help by doing their normal activites if a fire has started. Firefighters can help by evacuating people from homes, cars, building, etc Firefighters can help with search and rescue if someone has gone missing, they will do this by helicopter,boats, cars/foot.
