04 Masonry Wall Collapse

Question 1

What is the most common type of masonry wall failure that occurs at fires?

Answer 1

A 90-degree angle collapse

Question 2

The collapse of the brick veneer, brick cavity, or masonry-backed stone wall often occurs in a ___________ manner.

Answer 2

Curtain-wall

Question 3

When planning for a bowstring timber truss roof collapse, FFs should also consider a ___________________ collapse.

Answer 3

Front or rear wall

Question 4

As a general rule, the collapse zone is a distance equal to the height of the wall. This may be increased to 1 1/2 to 2 times the height of the wall if ____________ triggers the collapse.

Answer 4

truss roof or explosion

Question 5

Decorative attachments that increase the collapse danger are parapets, marquees, canopies, and cornices. These can collapse themselves or _______________.

Answer 5

Collapse and pull down the entire supporting wall.

Question 6

Facade

Answer 6

General term that indicates the front of a building.

Question 7

Parapet

Answer 7

Continuation of an exterior wall above the roof level

Question 8

Marquee

Answer 8

A large metal structure attached over the entrance to a theater or store.

Question 9

Canopy

Answer 9

A cloth, wood, or metal covering over a building entrance designed to protect people from the weather.

Question 10

Cornice

Answer 10

A horizontal ornamental construction along the entire front wall of a building, usually near the top.

Question 11

A ____________ is more of a collapse danger than a marquee.

Answer 11

Canopy