Engine company OPS Flashcards
Fire service training falls into 3 categories, what are they
Self study
company training
multi-unit training
what makes up the fire tetrahedron
Fuel
chain reaction
oxygen
heat
what is thermal layering
The tendency of gases to form into layers according to temp
what is heat release rate defined as
the amount of energy released over time
what are indicators of the flammability of smoke
the density of smoke and color
smoke that is black/brown in color indicates what
fire is fully developed or decaying and smoke is too rich to burn
RECEO VS
Rescue exposure confinement extinguishment overhaul ventilation salvage
the earths atmosphere contains 2% oxygen. what are the percentages that will result in rapid death
less then 10
To figure out Victim Survivability Profiling (VSP), firefighters have to conduct a thorough size-up of a structure fire and determine the likelihood of a victim’s potential to be rescued. There are several background factors that must be understood regarding the physiology of the human body. What does NFPA suggest the upper range of temperature tenability of the human body to be and a human body is rendered unconscious within 4 -12 secs at approximately how many PPM of CO?
212 deg. F/ 200,000 PPM
the fire attack technique known as penciling will immediately decreases building heat within a compartment by
50%-60%
A good way to estimate the length of a hose line to stretch is the use of situational awareness. Parking spaces in lots and telephone poles on the street are typically set at an approximate distance. What are the approximate distances of each?
10ft and 75ft
well holes are found in what location
stairwells of most buildings
what is the formula for nozzle reaction of a fog nozzle
0.0505 x Rathed flow x √nozzle pressure
what is the formula for nozzle reaction of a smooth bore nozzle
1.57 x diameter squared x nozzle pressure
without a water supply how long can a master stream be used before depleting the tank
60-90 seconds
heavy dense smoke with no visible flames in tightly closed occupancy and smoke condensation and pulsation are all warning signs of what
possible backdraft
_____ is the stage of fire where everything in the room or space have heated to their ignition temp and everything ignites at once
Flashover
How many stages of fire growth are there
4
when preforming hydraulic ventilation what percentage of the opening should the fog pattern cover to remove smoke and heat
80%
all smoke is filled with ____ and ____ that if left unchecked will result in fire
carbon and carbon monoxide
on the fire ground who is charged with conducting a thorough size up developing and implementing the initial strategy/tactics, and conducting fire ground tasks that often dictate the overall success of incident operations
first arriving source: Engine company
when stretching a hose line to any upper floor apartment maximum hose length can be achieved by stretching the hose line through where
well-hole
There are five construction types: fire resistive, non-combustible, ordinary, heavy timber, and wood frame. Most new home construction can be classified as……?
wood frame
on a standard house fire which unit in the run orders lays the secondary supply line, visually inspects side “C” deploys 3rd house line and positions opposite first engine
3rd due engine