Ch5 Pg 70-74 (Lt 2019)

Question 1

Building analysis during any incident should be ___ that is performed on a regular basis as conditions change and time elapses.

Answer 1

cyclic

Question 2

To predict collapse the ISO uses the classic “Identify-analyze-decide” method, we can take that three-part method and apply it using a 5 step process:

Answer 2

1. Classify- the buildings construction (type/era/use/size) approach
2. Determine- structural involvement (read smoke and flames)
3. Visualize and trace loads
4. Evaluate time
5. Predict and communicate collapse potential.

Question 3

Steps 1 and 2 of the process are when the ______ takes place?

Answer 3

Identification

Question 4

Steps 3 and 4 are ____.

Answer 4

analytical

Question 5

Gusset plates typically hold together trusses. Gusset plates pop out quickly during rapid heating and fall off completely when a small portion of the wood’s surface burn’s away— after as little as __ mins of burn time

Answer 5

5

Question 6

Most fire service texts suggest a collapse zone of at least __ times the height of the structure that is anticipated to fall. Although this may be appropriate for wood structures, it may not be adequate for unsupported masonry block/brick walls. There are many documented collapses where the falling masonry wall propelled blocks __ times the height of the wall.

Answer 6

1 1/2

Three

Question 7

When flanking a collapse zone, firefighters should use ____ and have rapid-withdrawal signals and routes pre-established.

Answer 7

spotters