COORDINATED VENTILATION TACTICS Flashcards
(22 cards)
When the use of ventilation tactics is coordinated and the ventilation opening is properly
placed, the following can be accomplished
- Increase the survivability of trapped civilians and the safety of firefighters as they
search for victims and the seat of the fire. - Control fire development and confine the spread of fire, heat and smoke
conditions throughout the entire structure. - Aids in the extinguishment of the fire by removing heat from the structure and
improving visibility to allow advancement of hose lines.
Portland Fire & Rescue utilizes three methods for the coordinated tactical ventilation of
a structure: ____
horizontal, vertical, and mechanical.
____uses tools and equipment to develop areas of high and low pressures within a structure
to create and manage flow paths
Mechanical ventilation
Portland Fire & Rescue uses___and ___ to achieve specific tactical objectives at a structure fire.
coordinated horizontal vertical ventilation
___is used to assist in the rapid removal of smoke from a structure
after the fire is knocked down.
Mechanical ventilation
Proper timing of mechanical ventilation is after the fire is __
knocked down
Proper placement of a vertical ventilation opening is ____ as safely possible
as close to or directly over the fire
Proper placement of a horizontal ventilation opening is on the __ of
the fire from the advancing hose line, and in the actual fire room or as close as
possible
opposite side
Most of the structure fires that PF&Rfirefighters encounter are in a ___
ventilation-limited state
Most of the structure fires that PF&Rfirefighters encounter are in a ventilation-limited state. These fires present themselves as __ pushing from openings in the building
heavy, dense smoke under pressure,
The process for developing a ventilation plan involves three-steps:
- Size-up (Initial and Ongoing Assessment of the Incident Size-up Factors)
- Decide on a Plan (Strategy Based on Incident Priorities)
- Put the Plan into Operation (Specific Tactics to Accomplish Strategies)
Ventilation strategy is __ needs to be done at the fire scene to address the incident
priorities and tactics are __it will be accomplished
what and how
Fire ground vent strategies include
Venting for fire control; Venting for firefighter safety, and; Venting for civilian safety.
Ventilation tactics include coordinated horizontal, vertical, and mechanical, ventilation
Venting for___ is a ventilation strategy to control the spread of fire to uninvolved
portions of the structure
fire control
Venting for ___ is a ventilation strategy to reduce the likelihood of extreme
fire behavior.
firefighter safety
Venting for___ is a ventilation strategy of opening up of a structure to allow the occupants to escape, provide fresh air to those that cannot, and permit a search for and removal of viable victims. An example of a tactic used for venting for lifesafety is Vent, Enter, Isolate and Search (VEIS)
civilian life safety
The ventilation strategy must support ___
the overall incident priorities
The VEIS tactic discussed above is an example of an ventilation tactic
that will ___ over other ventilation strategies when the opportunity is present.
take priority
Venting for __ to prevent injury or death as a result of extreme fire
behavior is also a top priority of the ventilation strategy
the safety of firefighters
Venting for civilian life safety is often accomplished in tandem with venting for ___ and the support of fire attack.
firefighter safety
Any change in the ventilation profile as the fire progresses or as the result of ventilation
and extinguishment tactics, must be communicated to__
command
when performing vertical ventilation on a lightweight
roof, the location of opening is made only on ___ of the roof structure.
uninvolved portions
