-
called the A tool on steroids.
rex tool
-
also known as the officers tool
A tool
-
K tool is used in conjunction with what other tool?
halligan
-
what constitutes a heavy duty padlock?
- >1/4" thick of case hardened steel
- (use a saw)
-
american lock series 2000 is AKA__
- hockey puck locks
- (case hardened w/ locking pin inside)
-
type of lock where the lock is surface mounted on the inside of the door
rim lock
-
round lock. mechanism is in the handle, not the door (unlike mortise)
key in the knob and deadbolt are examples
cylindrical
-
commercial emergency locks. may have knob removed. 2 bars attached to rotating plate
fox lock
-
how do you remove a fox lock?
- remove 3 of the 4 bolts
- remove the cylinder w/ halligan
- use key tool to open lock
-
All magnetic locks work with AC or DC current?
DC
-
what is a fail-safe lock?
needs power to keep it locked
-
what is a fail-secure lock?
will stay locked even without power (most common)
-
door with a metal frame and wood core
kalamein
-
superglass with metalic film vacuum deposited on each side
low-E
-
how much stronger is Lexan than glass?
it is self extinguishing, half the weight, and 1/3 the conductivity as well
250 x
-
30 times more toxic than CO
hydrogen cyanide
-
released during combustion process of anything that contains N. reduces the ability to carry O2. found in gas or liquid
hydrogen cyanide
-
what is natural ventilation?
- opening windows, doors, scuttles, and skylights to let smoke follow natural course
- also cutting a hole in a roof.
- works well with light smoke conditions
-
what is mechanical ventilation?
using a powered fan, HVAC, or building's smoke management system
-
how much more effective is PPV than negative?
twice
-
when should PPV be used?
- exhaust set up
- location and extent of fire is established
- hoselines are in place
-
screens can reduce air movement by how much?
50%
-
how should double-hung and casement windows be opened when there is a wind blowing towards them?
so the window is open 2/3 down from top and 1/3 on bottom
-
T/F-you should enter and exit the roof of the bulkhead in the same way
T-so you don't fall in a shaft
-
how should you break a window
- windward side, just below the window
- strike upper pane in downward motion and trim
-
when do you vent for life?
permit FFs to access an area where a known or suspected life hazard
-
the cutting edge of an axe should be at what angle to the material?
90 degrees
-
cell phone sites emit what?
microwaves
-
what does white/gray powdery residue indicate while cutting a roof?
gypsum roofing-which is prone to collapse
-
where should you cross over buildings?
in the front
-
what are the 3 common types of inspection holes?
punched hole, kerf, triangular
-
plunge cut.
drive an axe or saw blade into the roof and out
kerf
-
triangular, tepee, or A cut
inspection hole to check roof material and presence of fire
-
small cut to check for presence of smoke
indicator hole
-
what size of roofing material can the pullback method be used
- 1" thick
- (no plywood or OSB)
-
dice cuts go in which direction?
direction of rafters (in between)
-
head cuts go in which direction?
perpendicular to rafters
-
what is the normal size of a louvering cut?
4x6'
-
what is the butterfly or hinging method?
louvering
-
what is a coffin cut?
7,9,8 shaped cuts
-
what is a trench cut?
- strip cut
- defensive operations
- prevent extension of fire in attic
-
what comes first on a trench cut?
how wide should it be?
ventilation hole over fire (20-25' away from trench)
3'
-
where are inspection cuts made on a trench cut operation?
5-8' on fire side. when the fire reaches this point, pull up trench and vent
-
what is ridging the roof?
pulling up last (top) section of roof to vent
-
where do you start PPV on a multi-story dwelling?
lowest level and work up
-
if the fire is venting out 2 windows in 1 room...
it is considered self-venting. cuts hould not be made directly over the room
-
a maltese cross on a window signifies what?
temptered windows designed to be removed by FFs on highrises
-
temps inside higher than outside will create what?
stack effect
-
temps outside hotter than inside will create what?
reverse stack effect
-
air moves from upper floors down
reverse stack effect
-
air moves from lower floors up
stack effect
-
once fire floor has been determined what should you do with the HVAC?
activate fan in all zones that dont include fire area
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