Dunn Ch 1

Question 0

Unprotected lw steel bar joists fail when exposed to __ of fire?

Answer 0

5-10 minutes of fire

Question 1

4 factors will increase the number of burning bld collapse:

Answer 1

• age of bld, life span 75-100 years
• abandonment
• LW materials; collapse more quickly
• faulty renovations

Question 2

Definition of structural collapse ?

Answer 2

Any part of a building fails, no matter how small. Ex: glass falling from a window because the window frame was heated by fire & distorts allowing glass to fall out of frame or glass cracks & fails

Question 3

Glass broken by a FF venting is a ?

Answer 3

Falling object. Glass falling from window because window frame was heated by fire & distorts allowing glass to fall out or glass cracks from heat & fails is Structural collapse

Question 4

The most common falling object at a structure fire?

Answer 4

Broken glass from windows being vented

Question 5

1/4” or 1/2” glass could weigh ?

Answer 5

2 1/2 or 5lbs

Question 6

When trimming broken glass from windows, knock the glass shard ?

Answer 6

Inside

Question 7

Commercial glass in more dangerous then residential glass ?

Answer 7

Because thickness & weight

Question 8

Which parts of a building is more likely to collapse & kill FF ?

Answer 8

Floors, Roofs, Walls then Ceilings