Ch. 1 General Collapse Information

Question 1

What are the 4 factors that will increase the number of burning bldg. collapses?
LAAF

Answer 1

• Age of the Bldg.
• Abandonment
• Lightweight construction
• FAULTY RENOVATIONS NEW
• LAAF

Question 2

Unprotected lightweight steel bar joist will fail when exposed to fire for how many minutes?

Answer 2

Unprotected lightweight steel bar joist will fail when exposed to fire for 5-10 minutes

Question 3

The perimeter of a burning bldg. is a dangerous area because of bldg. collapse and falling objects. As soon as a firefighting task is complete at the perimeter of a burning bldg. the FF’s should either do what 2 things?

Answer 3

Enter the Bldg. or withdraw from the danger zone.

Question 4

What is the definition of a structural collapse?

Answer 4

When any part of the bldg. falls, NO MATTER HOW SMALL, as a result of FIRE.

Question 5

What is the definition of a falling object?

Answer 5

Any object, OTHER THAN THE STRUCTURE, that falls, is thrown, or knocked loose from a burning Bldg.

Question 6

(General Information)

The difference between a glass window being a collapse or a falling object.

Answer 6

• Glass falling from a window because the frame was heated and distorted by fire is a COLLAPSE.
• Glass broken by a FF venting a window is a FALLING OBJECT, and is the most common falling object at a fire.

Question 7

When overhauling do not throw objects out a window unless you have permission from the IC and also have what?

Answer 7

A FF outside to clear the area of civilians and act as a guard

Question 8

When trimming broken glass from a window, all shards should be knocked to the __________ of the Bldg.
Fill in the Blank

Answer 8

INSIDE of the Bldg.

Question 9

Which 4 parts of the Bldg. are most likely to collapse and kill FF’s (in hierarchy order)?

Answer 9

• Floors
• Roofs
• Walls
• Ceilings
• Floors Really Will Collapse*