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what is a class A extinguisher used on?
ordinary combustibles
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fire extinguishers are classified by the ___that have been CERTIFIED OF LISTED to extinguish without posing undue danger to the operator
type of fuels
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sodium bicarb is effective on what type of fires?
B and C
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CO2 is used on what type of fires?
C
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mechanical element squeezed to expel agent in fire extinguisher
lever
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what does PASS stand for (extinguisher)?
- Pull pin
- Aim the nozzle
- Squeeze the handle
- Sweep the area of the fire
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how is dry chemical applied?
applied generously to absorb energy and cool material (Class D)
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sprinkler system where water is throughout the system and held in place by the operating element of the sprinkler head
wet system
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sprinkler where water is held below the main control valve, using air to prevent damage from frost or broken lines
dry system
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sprinkler where water is held below a control valve and released by a signal from a separate initiating device
deluge
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sprinkler with a combination of deluge and dry pipe systems to reduce damage from excess water flow
pre action system
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sprinkler element with glass bulb filled with a colored liquid that boils at a specific temp causing it to burst
frangible bulb
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sprinkler type mounted on the underside of piping
pendant
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indicating valve outside the structure in line with the main water feed
PIV
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indicator valve located on the outside of the structure perpindicular to the main riser
WPIV
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this valve senses when water is flowing through the system. Activates gong or FACP
alarm valve
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what does a Class 3 standpipe supply?
- 1 and 2 flow requirements
- 1.5" and 2.5" connections
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a sprinkler head that is activated at 180 degrees is painted what color?
white
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an FDC consists of what?
Siamese with two 2.5" hookups
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how much does water wigh?
8.33 lbs/gal
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the pressure of water at rest
static pressure`
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the pressure remaining in a system while water is flowing from a second location
residual pressure
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hydrants are usually supplied by___. they are 4-12" wide
distributors
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where is the valve located for a dry barrrel hydrant?
on the bottom
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how are hydrants rated?
by the size of the main that supplies them, GPM available
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what are the types of natural ropes?
-
synthetic ropes are more resistant to__damage from abrasion
physical
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what is the working load of 1 person?
300 lbs
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the core of kernmatle rope holds how much of the load?
75%
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part of the rope used to tie knots
working end
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part of the rope attached to something, usually the anchor
working end
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part of the rope used to hoist
running part
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made by bringing the rope back to itself
bite
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made by placing a twist in the rope and having that end run parallel back by itself
round turn
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who is the only person who cal alter or call off an operation
safety officer
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what is the benefit of a horseshoe roll?
less sharp bends
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a low air alarm is activated at what percentage of air remaining?
20-25%
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What is used on a class C fire?
CO2 and dry chemical
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what are the 4 types of lugs?
- extended
- rockers
- storz
- recessed
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how many firefighters die on average every year?
105
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how often are bunkers cleaned and check?
what is the NFPA in regards to that?
-
at what level is hearing protection required by an employer?
95 dba
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NFPA that is the standard for FD operational saftey and health program
1500
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what is the TTP of earflap?
gloves?
hood?
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how much air does a low pressure SCBA hold?
45 ft at 2216 psi
-
how much air does a high pressure SCBA hold?
66 ft at 4500 psi
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how often are air cylinders tested?
3-5 years
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what are the 2 types of couplings?
-
what do you check while cleaning a hose?
couplings
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evolution where the company stops at the fire then goes to the supply
reverse lay
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how much 5" supply hose is required?
SLC requires how much?
how about 2.5"?
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nozzle type with the most comlicatted design
automatic or constant pressure
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what kind of spray is good when you see a large cloud of black smoke?
modified direct
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what is stencilled on a new hose?
size and test date
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what is the sticker on an O2 cylinder?
test date
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a pick axe is what type of tool?
striking
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low pressure warning device on SCBA
audi-alarm
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what is as important as strength in using a strinking tool?
accuracy
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how many cutting blades does a pick axe have?
1
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what divisioin of ICS can split into groups, divisions, etc
operations
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what type of nozzle produces a straight stream?
- automatic
- constant pressure
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what are the 3 types of streams?
- straight 15 degrees
- narrow15-45
- wide 45-80
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how many taps to start the tool operator?
stop?
shut down?
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what are the 3 types of foam application?
-
kinks in the hose can cause a loss of how much water?
50%
-
What tool can you use to mount an appliance?
pry bar
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what are the 3 priorities on an incident?
- life safety
- incident stabilization
- property conservation
-
what is level 1 staging?
parked in the direction of travel, notifies IC
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what is the flow for a 2.5" hose and 1"tip nozzle?
-
what is the flow for a 2.5" hose with 1.25" nozzle tip?
-
what is the flow for 1.75" hose with 15/16" tip?
- 50 psi nozzle pressure
- 40 psi FL/100' @ 180 gpm
- 50 psi FL/100' @ 200 gpm
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what is the nozzle reaction formula for straight stream?
fog nozzle?
-
what is a branch leader called?
director
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what is the best tool for removing trim, overhauling, and a bunch of other stuff?
PIKE POLE
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how often are ladders tested?
- inspected monthly/after use
- tested yearly
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what is the rail that runs the full length of the ladder from which rungs span?
beam
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section of an extension ladder that is raised
fly
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what is an appropriate ladder angle?
65-75 degrees
-
these metal rods run under rungs and through both beams. help secure both BEAMS together with the RUNGS
tie rods
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what is candle wax or parafin used on a ladder?
slide rails and friction areas
-
what is used on wood ladders to keep them nonconductive?
varnish
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structural support member usually found in horizontal position. supported by a wall and/or columns and supports beams or joists
girder
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horizontal beam above an opening
lintel
-
horizontal support member that transitions weight from one member to another
beam
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structural component using 1 or more triangular units to attain stability
truss
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exterior nonload bearing wall. pass in front of the building floor slab
curtain wall
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construction type of exterior noncumbustible materials and wood interior support members.
type 3 ordinary construction
-
construction type where structural members are noncombustible but have little fire resistance
type 2 noncombustible
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conventional flooring uses what size of material?
2 by 6" or greater
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load of building itself, structural members, and anything permanently attached?
dead load
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what are the dangers of ordinary construction?
- collapse
- remodel
- age
- voids and pleums
- multiple occupant use
-
conventional construction relies on what for strength?
size, quantity of structural members
-
concrete is a ____-absorbs and contains heat
heat sink
-
lowest temp at which a fuel must be heated to start self sustained combustion without an independent heat source
ignition temp
-
process of liquids changing to gas from a liquid state
vaporization
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lowest temp at which a liquid fuel will give off vapors to momentarily ignite when provided an ignition source
flash point
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flashover is caused by____--
thermal radiation feedback
-
oxidation is exothermic or endothermic?
exo
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what are the 4 types of energy?
- chemical
- electrical
- mechanical
- nuclear
-
what is the most important kind of heat tranfer in fire growth?
convection
-
what does SRECEO Vs W stand for?
- safety
- rescue
- exposures
- confinement
- extinguishment
- overhaul
- Venting, salvage
- water supply
-
at what temp does flashover occur?
900-1100 degrees
-
what are the 5 rx priorities?
- closest to fire
- largest thretened group
- above the fire
- general area
- eventually exposed
-
what are the 3 attack modes?
- offensive
- defensive
- transitional
-
what is the first rule of basement fires?
don't spray thorugh a window with occupants inside
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what stage burns fuel other than full involvement?
decay
-
what is the last sign to get out before flashover?
rollover
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what is the measure of quantity of electrons moving through a conductor per second?
amperage
-
property of electricity responsible for moving electrons (compared to pressure)
voltage
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Meter Set Assembly category-
piping rising from the ground
riser
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Meter Set Assembly category-
stop or service cock
shut off
-
Meter Set Assembly category-
pressure to 1/4-1/3 psi
regulator
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1___bag of sawdust can absorb___of water
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