Drill Manual - Ventilation Flashcards
Whether or not the operation goes offensive or defensive depends almost entirely on _______?
ventilation
When the strategic mode is defensive, ventilation operations are directed ______________?
towards exposures
Whats the first and second priority in vertical ventilation?
FIRST - to aide in interior conditions so occupants can escape.
Second - to aide conditions for firefighters to confine and extinguish the fire
What are the two types of heat holes?
offensive and defensive
When operating on any lightweight roof, or suspected lightweight roof (panelized or lightweight truss), the crew performing operations shall never __________________________?
shall never conduct ventilation holes directly over the fire
A strip ventilation should be used in conjunction with what?
heat hole
Ladders should be placed on the ___________ side of the building, preferably at the corners, and away from ______ if possible
uninvolved, windows
Excursions must be parallel to an exterior wall, usually the ________ wall as this is generally the direction of structural members�
shortest
The ______ of a pitched roof is also a strong and safer route
ridge
The Sounder should be the _________________ ventilation crew
the most experienced person
Always sound an area __ feet in front of where you are walking
3 feet
What are the three diagnostic cuts in roof ventilation?
kerf cut, smoke indicator hole, and inspection hole
What’s a kerf cut?
single cut the width of the chain saw guide-bar
Uses of a kerf cut?
identify conditions below and the roof integrity
What’s a plug cut?
a small triangular cut that only removes the roof covering and exposes the roof sheathing
