Dunn/PA/ID's Flashcards
Lightweight floors can be how far apart?
2 or 4 FT
A building ____ feet or less can have floor beams supported by bearing walls on each side
25
what is most deadly type of floor collapse?
Multilevel Floor Collapse
chances of a multilevel floor or “Progressive” collapse occurring are greatest when?
first structure to fail is a column, girder, or bearing wall
What stage of fire is the Most Dangerous time for floor collapse?
Decay Stage
Collapse Danger is highest when?
during salvage and overhauling
Most Common Shape of a timber truss roof is?
Bowstring Timber Truss
the most dangerous type of roof system that a FF will encounter is?
Truss Construction
T/F A truss roof concealed by a ceiling is much more dangerous than a truss roof without a ceiling.
True
When a truss roof of any kind is discovered who must be notified?
IC
What is the Most Unstable part of a worship place?
Tower and the Steeple
where is first line taken at a church fire?
the first line should be taken through the front or side door to attack the seat of the fire to extinguish it
where is first line taken at a church fire?
the first line should be taken through the front or side door to attack the seat of the fire to extinguish it. stretch the largest size hose. Maneuverability is not a factor. 2nd large diameter hose should be stretched to backup first line immediatley
Primary venting should be the ________ at the front of the church or temple
Rose Window
Venting Stained Glass windows happens before or After the Rose Window?
After
which is more unstable, a Domed Tower or the Steeple on a Tower?
Steeple on a Tower
Lightweight Construction like unprotected steel bar joists can fail within how many minutes when exposed to fire?
5-10mins
When a Fire building has a steel bar joist supporting the roof, what is the Preferred ventilation tactic?
Horizontal ventilation is preferred
Lightweight wood truss can fail within how many minutes when exposed to fire?
5-10 mins
T/F Steel does not melt during a fire
True