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Apprentice test 1
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What are the 4 sides of the fire tetrahedron?
fuel
O2
heat
chemical chain reaction
How is heat measured?
BTUs
Joules
(not calories)
decomposition of solids is called?
endo or exothermic?
pyrolysis
endothermic
T/F An ignitable liquid must be atomized to burn?
True
False
false
Amount of heat absorbed as the temp of a substance increases
specific heat
thermal energy absorbed as a substance is converted from a solid to liquid or liquid to gas (change of state)
latent heat
specific gravity and vapor density can be used interchangeably
True
False
false
vapor/specific gravity of >1 will sink or rise?
sink
4 types of energy
mechanical
chemical
electical
nuclear
quantity of heat generated by electrins depends of what variables?
amount of electricity
density of conductor
resistance
Causes of static electricity include:
contact and separation between DISSIMILAR solids
flowing powders
flowing liquids or gases
grinding wheel sending sparks out is example of what type of energy?
friction (mechanical)
FF PPE offers what type of radiation protection?
none.
what are the 4 stages of fire?
ignition
growth
full development
decay
4 factors that will affect a fire's ability to grow?
O2
Fuel
size of space involved
insulation of ceiling and walls
(not ambient temp outside fire area)
Occurs when a fire has changed from being fuel controlled to ventilation controlled
flashover
2 types of explosions
deflagration (<speed of sound)
detonation (>speed of sound)
warning signs of flashover
rollover
rapid buildup of heat in a room
offgas
flames from doors and windows
signs of backdraft
puffing smoke
smoke churning in window glass
glass being pulled in
lack of visible flame
air rushing into opening
Load that passes through the center of a supporting member
axial load
load imposed on a point other than the center section of a supporting member
eccentric load
load that is delivered at a right angle to member
torsional load
load that includes people and trasnportable items
live load
load of building itself and nonmoving objects
dead load
load based on weather-related impacts that vary based on geographical region
environmental
fire loads include what?
combustibles inside the building but do not include building itself
precast panels that may be attached to the steel frame fo the structure by fasteners (non-loadbearing)
curtain wall
what is the NFPA standard for building types?
220
type 1 (fire resistive) construction uses what materials to insulate structural members?
cement plaster
clay tile
asbestos
gypsum board
spray on materials
type 2 (noncumbustible) construction ises what kind of materials?
structural steel
concrete
cold-formed steel
what kind of construction is also known as "limited combustible"?
noncombustible
wall panels are usually what height?
total height of bldg
tilt wall slabs are attached to what?
steel skeleton frame at roof level and foundation
what makes noncubustibles some of the most dangerous buildings?
tilt slabs
lightweight structural systems
steel bar joist roof systems
exterior msonry load-bearing walls and wood floors and roof
type 3 (ordinary)
T/F- type 3 may include some type of roof truss?
True
False
True
what are the 4 classifications of wood construction?
post and beam or
braced frame
balloon frame
platform frame
lightwight wood frame
how much mass may be removed to create the tenon portion of post and beam?
2/3
mortise and tenon is susceptible to what type of collapse?
inward or outward
type of construction where exterior studs run vertically from basement to attic?
balloon frame
how many stories can a taxpayer have?
1-2
what are the 2 types of raw water sources?
ground water
surface water
what are the colors of hydrant caps for:
<500 gpm
500-1000 gpm
1000-1500 gpm
1500+?
red
orange
green
light blue
what does a triple combination fire engine entail?
pump
hose
tank
what are the 2 types of couplings?
threaded
storz
device where water enters through a single female inlet and out 2 male outlets
wye
working pressure should not exceed__% of the test pressure
90
hose testing consists of what 2 parts?
visual inspection
pressure testing (5 mins)
hose loaded in S-shape with nozzle on top
triple fold
horshoe load benefits:
promotes good air flow
minimizes bends
hose lay where 2 engines are used to complete 1 supply line
split lay
Author
safado
ID
238188
Card Set
Apprentice test 1
Description
behavior, construction, supply
Updated
10/2/2013, 12:30:17 AM
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