Search Operations Flashcards
The movement of heat and smoke from high to lower air pressures within a buildings fire area, both in and outside fire involved structure
Flow path
It is ____ for a ventilation opening in a fire building (window/door) to act simultaneously as an inlet for fresh air and as an exhaust vent for product of combustion
Common
With two way flow path what goes at top?
Heat, smoke and fire to vent out of the fire area
New flow paths are created and existing paths ___ with every opening made in a structure during operations
Impacted
By practicing ___ firefighters can isolate the fire area and close off potential flow paths
Door control
Firefighters must refrain from venting windows ___ or in a manner that is not coordinated with fire attack or vent plan
Indiscriminately
The rate at which energy (heat) is released by the burning of a fuel and oxygen mixture
Heat release rate
A fire in which the HRR or growth rate of the fire is slowed due to a limited supply of fresh air and oxygen
Vent limited fire
Four facts of HRR
Rate at which energy (heat) is released by the burning of a fuel and oxygen mixture, providing oxygen to a vent limited fire will increase the HRR, oxygen is introduced each time a door or window is opened, an increase in HRR will result in increased heat and smoke production within the fire area and in all flow paths
Modern hydrocarbon based products burn at a rate that is ___ legacy fuels and produce ___ smoke
2-3 times , 4-10 times
Fireground tactics associated with a firefighter entering a fire involved structure through a vent opening with the intent of conducting a search
VEIS
Rapid, systematic, and thorough search and should be conducted with due regard for personal safety
Primary search
Typically primary search will be completed by
Interior team of first due truck company
Depending on circumstances of the incident the primary search may be conducted ahead of the hose line or prior to ___
Application of water
Secondary search covers all areas not done by primary and can include
Shafts and elevators
A targeted search for a victim and the location can come from dispatch reports, occupant or bystander reports, visitation of a fire victim at the window, or ___
Reports of FF mayday
Other reasons for targeted search can include occupancy type, building layout, location of bedroom windows or
Audible cues from victim calling out or sound of pass device
The use of search tools and or techniques that keep a search team oriented within the structure they are searching
Oriented search
Door control is important for two reasons
Isolate the fire area limiting fire spread to uninvolved areas of structure and to eliminate flow paths that aren’t part of vent plan
Primary mission of PFR
Protect and save civilian lives
How does PFR save lives
Aggressive fire attack, applying appropriate vent tactics and by conducting safe and systematic and aggressive search operations
A careful size up, establishing a search plan, and ___ amongst crew members involved in the search are essential elements of a successful operation
Coordination
In residential occupancies the size up should include __ sides of structure should be viewed prior to initiating search
Two
Members must include ____ as part of their size up
Buildings interior configuration
In multi family consider conducting a survey of ___ to determine interior hallway layout
Floor below
The rescue profile is first determined by considering all critical size up info followed by applying a members ___
Judgement and experience
Three PFR rescue profiles
No rescue, possible rescue, confirmed rescue
Fire and smoke conditions indicate that the interior environment is incompatible with human life of structural integrity of the building is compromised beyond the point of mounting reasonable interior search
No rescue
