Fire glossary
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29 entries in the Fire glossary beginning with "D"
Dalmatian
Firehouse dog.
Dead lay
A load of hose on a pumper, but not connected to a pump outlet. Often used for larger supply lines.
Dead Man Zone
Unburnt areas around edges of brush fire.
Deck gun
A master stream device mounted to top deck of pumper.
Deflagration
An explosion with a propagation front traveling at subsonic speeds, as compared to supersonic detonation.
Deluge gun
A master stream device that can be positioned on the ground based on the need of the incident commander.
Deluge system
Type of sprinkler system in which sprinkler heads do not have individual valves, and the water (or other extinguishing agent) is disbursed from all sprinkler heads simultaneously when a central (or zoned) valve is triggered by a sensor (or manually). Typically reserved for industrial areas where rapid fire spread must be prevented at the cost of damaging non-burning materials.
Demob
Demobilization, or a crew being removed from working a fire.
Denver Door opener
Heavy pry bars connected with a hinge, one with an adjustable foot, used for prying open doors.
Denver tool (also called TNT tool)
A combination axe, sledgehammer, pry tool, ram, and D-handle pull tool used to gain forcible entry to buildings, automobiles, etc. during emergency situations.
Detection system
See Alarm system.
Detergent foam
See Aqueous Film Forming Foam.
Direct Attack
Any treatment applied directly to burning fuel such as wetting, smothering, or chemically quenching the fire or by physically separating the burning from unburned fuel.
Direct attack
Putting the wet stuff on the red stuff." A form of fire attack in which hoses are advanced to the fire inside a structure and hose streams directed at the burning materials.
Discharge flow
The amount of water flowing from a fire hydrant when it is opened; compare to static flow and residual flow.
Dispatch
Refers to person or place designated for handling a call for help by alerting the specific resources necessary.
Distributor pipe
Portion of fire hydrant or sprinkler system connecting main loops to smaller loops where outlets are located.
Double female
Firehose adapter for connecting two male" couplings together; may also adapt different sizes on either side.
Double male
Hose coupling adapter with two male-threaded connectors back-to-back; used for connecting two female couplings together.
Dozer line
Fireline constructed by the front blade of a bulldozer or any tracked vehicle with a front mounted blade used for exposing mineral soil. Also catline.
Draft
The process of pumping water from a static source below the pump.
Drafting
Using a suction pump to lift water from below the pump, using a semi-rigid suction hose, typically to fill a portable reservoir that has other suction pumps (to relay) or siphon hoses running downhill to their nozzles.
Drills
Training during which an emergency is simulated and the trainees go through the steps of responding as if it were a real emergency.
Drip torch
Hand-carried fire-starting device filled with flammable liquid that is poured across a flaming wick, dropping flaming liquid onto the fuels to be burned.
Dry chemical
A fire extinguishing agent. It works by breaking the chemical chain reaction in the fire tetrahedron".
Dry hydrant
A fire hydrant with a valve located at the bottom of the barrel, near the water main. The barrel of the hydrant remains dry until used. The prevents the hydrant from freezing in sub-zero temperatures. A dry hydrant is also an unpressurized pipe that can be used to draft water from a pond or lake.
Dry powders
Fire extinguishing agents for use on flammable metals. Each agent is typically designed for use on either a single metal or very similar metals.
Dry sprinkler
A sprinkler system having pressurized air (rather than water) in the distribution pipes until a heat-activated sprinkler head opens and releases the pressure, which opens a water valve (and possibly an accelerator valve) to flow water to the open head; used where the protected premises are not heated during freezing temperatures or where pressurized water in overhead sprinkler pipes could create another hazard.
Duff
Layer of decaying forest litter consisting of organics such as needles, leaves, plant and tree materials covering the mineral soil. Duff can smolder for days after a fire. Extinguishing smoldering duff is key to successful mopup operations.
29 entries in the Fire glossary beginning with "D"
Friday, January 1st, 2021
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Dec 30, 2020 the Indiana County Water Rescue Team was Activated for one kayak capsized, reportedly in the area of Aultman Run boat access along the Conemaugh River. One victim was reported to be in th...
Tuesday, January 19th, 2016
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On 1/19/2016 Station 120 was activated by Indiana County 911 to assist station 330 with a barn fire on Clarksburg road. Assistant 330 went on scene with a fully involved structure w/ exposures. E121 a...
Wednesday, April 1st, 2015
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At 0600hrs stations 132, 71, and 41 where dispatched to a structure fire on Shady Hollow road. 132 A1 went on scene with a working fire, fire in the attic space. A tanker assignment was then added to...
Saturday, August 2nd, 2014
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At 12:56 Hrs. 8/2/14 station 120 was dispatched for a vehicle accident with roll over, and entrapment RT 217 near Ferguson Rd. 120 Chf. went on scene confirming entrapment, Recue 125 quickly stabilize...
Monday, May 16th, 2022
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Saturday July 9th, 2022 will be the Golf Outing. See the Flyer for details and registration!
Tuesday, February 8th, 2022
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Company Report for January 2022.BFD responded to 34 calls for service in the month of January.These Incidents consisted of Medical assists, Vehicle accidents, Vehicle fires, Chimney fires, Smoke and F...
Wednesday, December 15th, 2021
Last night at the December monthly meeting, BFD elected it’s line officers and administrative staff for 2022: Line Officers Fire Chief: George Burkley1st Asst. Chief: Terry Shepherd2nd Asst. Chi...
Thursday, March 25th, 2021
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SAVE THE DATE! Our annual GOLF OUTING will be July 10, 2021. More info, the official flyer and registration will be posted soon.
July 2022
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