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Flashcards in Strategies and Tactics Deck (611)
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181

Must be able to flow 500 gpm for 30 min must provide a minimal residual pressure of ___ psi to the highest furthest outlet while flowing 500 gpm

Class 1 standpipe

65 psi

182

Sprinkler systems and standpipe systems must have a water supply that is _____, _____. _____

Reliable
Adequate volume
adequate pressure

183

Standpipe connections are basically an extension of a fire engines _____

3 classes:

Discharge outlet

1 Use by FD
2 Use by building occupants
3 used for both

184

Residential Sprinkler systems are becoming more popular.

They are not required to have a _____

It is imperative that the system be pumped at ____

FDC

Standard domestic pressure
* pipes can't handle higher pressure

185

Preaction and deluge are similar to:

Dry pipe Sprinkler system

186

All heads are open
No water stored in pipes
Alarm is activated when water begins to flow
All hands flow at once

Deluge Sprinkler System

187

Only fills with water once the separate additional alarm detection equipment is activated. Once filled with water, a head needs to be exposed to heat before it will flow water
* Use in locations where water damage must be prevented

Pre action Sprinkler system
* An alarm sounds prior to the activation of a sprinkler head

188

System that has no water past the check valve. The pipes are filled with air under pressure, When a head is activated the pressure escapes and water is able to pass the check valve. Used in building that has possibility of water freeing

Dry Pipe SS
* Takes longer to get water to the fire
Uses accelerators or exhausters to speed up the process

189

Constantly has water under pressure throughout the system

Wet Pipe SS

190

The _____ and ____ of a sprinkler system should be of upmost importance

utilization and support

191

When connecting to the FDC, ensure that you are getting a water supply from a source other than ______

The one supplying the buildings fire protection system

192

Three common types of main water control valves

Outside screw and yoke - Threaded stem is visible when valve is open

Post indicator valve - No visible stem. It has a window where you can read open or shut

Wall post indicator valve - the same as the PIV except it protrude horizontally from the structures wall

193

Valve that controls the flow of water from the domestic water supply system and / or on site fire pumps

It is an _____ valve

The valve is always operated manually and should always be chain locked in the _____ position

Main water control valve

Indicating valve

Open

194

____% of fires in all sprinklered buildings ar either extinguished or held in check

96%

195

4 types of sprinkler systems

Wet pipe
dry pipe
deluge
preaction

196

Banned from production after the clean air act of 1994

Halon

197

Carbon Dioxide (Co2) used on class ____ and ____ fires

extinguished by ______

pg161

B and C

Smothering

198

Used to protect kitchens from grease fires

Water Chemical

Class K

199

Dry powders are applied by ____ and are used for _____

Shoveling the product on the burning material

Class D combustible metals

200

Common Dry Chemicals

Sodium Bicarbonate
Potassium Bicarb
Potassium Chloride
Monoammonium Phosphate
Barium sulfate
Ammonioum phospahte

201

Dry Chemical extinguishes class B and C fire by:

Class A fires by:

Interrupting the chemical chain reaction

Coating and smothering

202

Dry chemicals are generally used on ____ fires

* Very common in fire extinguishers and hood systems

ABC or BC extinguishers

Flammable Liquid fires

Ex Gasoline and grease

203

Produces high quality foam bubbles that are small and consistant

Compressed air foam system

204

Class A foam is primarily used on _____

Class A foam works by _____

Class A foam makes water ______

Low proportion rate ______%

*can be added to the booster tank

Wildland

Breaking down the surface design of water allowing product to soak in

Wetter

1%

205

AFFF is a class _____ foam

Most departments use AFFF ATC or AR because:

Gold foam acts as an AFF ATC but can be used on polar solvents and hydrocarbons both at ____%

B

It is applicable to polar solvents and hydrocarbons at 3 , 6%

3%

206

Foam applicator depends on:

Type of foam
Type of incident
Topography
Equip used for application

207

Foam should be proportioned at ____ % for polar solvents

and ____% for hydrocarbons

In line foam educators utilize the ____ system

6%

3%

Venturi

208

Foam is created by using _____ to mix the ingredients ____ , ____ , and ____.

90% of foam is ______

Mechanical agitation (nozzles and foam makers)

Air , water and foam concentrate

Water

209

Foam is commonly used for 2 types of hazardous material _____ and _____

Hydrocarbons and polar solvents

210

Foam can be applied to the base of a tank and allowed to float to the top to extinguish the fire

This is called _______

Subsurface injection