Fire Officer Tactics: Light weight blds (Ch 12) Flashcards
1
Q
Components of a truss
A
Top chord Bottom Chord Web members
2
Q
Forces on components of a truss
A
Top chord: compression
Bottom chord: tension
3
Q
Most deadly style of truss
A
Bowstring
4
Q
Issue with bowstring trusses with hip rafters
A
When they fail can push out with explosive force causing wall to collapse outside of expected collapse zone.
5
Q
Bowstring truss bld: Minimum collapse zone distance
A
At least 2 1/2 times height of the wall
6
Q
Rescue in lightweight construction
A
- Efforts should be coordinated to provide safest, most direct approach to the victim’s location without placing firefighters in undue danger.
- Exterior hose streams
- Exterior approach to victims (VES)
- Ensure lives are savable
7
Q
A
