Chapter 11 Flashcards
Tactical ventilation for Life Safety is done to:
(2)
p. 286
- Draw heat, smoke and toxic gases away from victims and firefighters.
- Decrease the chanced of a rollover, flashover or backdraft.
Tactical ventilation for Incident Stabilization is completed to:
p. 287
Improve visibility and release heat, which makes it easier for crews to locate and control the fire; hence Stabilization.
Tactical ventilation for Property Conservation is used to:
p. 287
Provide the shortest path for heat and smoke to escape and keep it away from uninvolved portions of the building.
Variables in smoke behavior that firefighters should look for when sizing up a fire:
(3)
p. 290
- Volume
- Color & density
- Air flow (pressure)
These terms describe how difficult it is to see through smoke.
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- Optical density (thick)
- Opacity (cannot see through opaque)
This describes how bouyant smoke is.
p. 291
Physical density
Among the most positive building construction features are:
p. 296
Self-closing fire doors.
When the IC has decided that ventilation is needed, coordinating the ventilation operation with rescue and fire attack generally involves three components:
p. 300
- Timing
- Location
- Method
Structures in which horizontal ventilation may be appropriate include those:
(4)
p. 302
- In which the fire is not large enough to necessitate opening the roof.
- With windows or doors close to the seat of the fire.
- In which the seat of the fire is below the top floor.
- In which fire has not entered void spaces.
Structures in which vertical ventilation may ne appropriate include those:
(4)
p. 302
- With fire in attic, cockloft or top floor
- With no windows and few exterior doors
- With large vertical channels (lightwells, hoistways)
- In which fire has entered voids.
The most important weather-related influence on tactical ventilation is:
(2)
p. 304
Wind and temp
