Chapter 12 Flashcards
This type of window does not open and has a permanently glazed pane(s).
p. 317
Fixed window
This type of window has one moveable section.
Half the window is available for ventilation.
p. 317
Single hung
This type of window has two moveable section.
Half the window is available for ventilation.
p. 317
Double hung
This type of window is opened with a hand crank.
Have one or two outward swinging sashes.
Can be separated by a vertical post called a mullion.
p. 318
Casement
This type of window, also called a factory window, may be hinged at the top or bottom and may swing in or out.
All openable area is available for ventilation.
p. 319
Projected wndow
The most common type of walls a firefighter may have to breach for horizontal ventilation are:
(3)
p. 324
- Stem walls
- Interior firewalls
- Exterior firewalls
Important factors that must considered in a plan for horizontal ventilation include:
(3)
p. 329
- Location of the fire
- Wind direction and speed
- Location of ventialtion openings
For tactical ventilation; in most cases the ____x____ opening should be twice as large as the ____y____ opening.
p. 332
Exaust
Inlet
Smoke ejectors are usually set up on the _______ side of the building.
p. 333
Leeward
(opposite windward)
Compared to mechanical smoke ejectors, fog streams are capable of removing ____ to ____ times more smoke.
p. 336
2 to 4
Proper fog stream:
______ degree fog pattern.
Covering ____% to ____% of the opening.
About _____ feet inside the door/window.
p. 336
60 degree
85-90% of opening
2 feet insde
Disadvantages of hydraulic ventilation:
(5)
p. 336
- Water damage
- Drain on water supply
- Ice
- Operator must remain in hostile enviroment
- Operation may be interupted when FF is out of air
