Chapter 1 general collapse info

Question 1

The NFPA states that the leading causes of firefighter death are: 7

Answer 1

1. stress
2. responding and returning from emergencies
3. falls
4. falling objects
5. coming into contact with objects
6. burning building collapse

Question 2

4 factors that will increase burning building collapse are

Answer 2

1. age of buildings
2. abandonment
3. lightweight construction materials
4. faulty renovations

Question 3

what is the expected lifespan of a building

Answer 3

75 or 100 years

Question 4

during the 60s through the 80s large numbers of people move from the from the Northeast and Midwest to where

Answer 4

the Sun Belt

Question 5

target hazards must be targeted by the fire department for

3

Answer 5

1. frequent inspections
   2 board up orders
   3 prefire planning

Question 6

NFPA states that unprotected lightweight steel bar joist fail when exposed to fire for

Answer 6

5-10 minutes

Question 7

World Trade Center towers had__ft unsupported steel bar joist floors

Answer 7

60ft

Question 8

fire protection engineers know that fire resistance and collapsible resistance are directly related to

Answer 8

the mass of the building

Question 9

the Vendome hotel floor in Boston and the wonder drug store in New York are both examples of collapse due to

Answer 9

illegal or improper renovation

Question 10

was the thickness and weight of commercial glass

Answer 10

1/4 inch or 1/2 inch in weighing 2 1/2 or 5 pounds per square foot

Question 11

who is responsible when a firefighter inside a burning building performing search and rescue breaks a window and glass falls and injures a firefighter operating on the ground

Answer 11

the fire outside the burning buildings responsible

Question 12

safety precautions taken by firefighters when objects must be thrown out of the window during overhaul

Answer 12

1. obtain permission from command
2. assign a firefight outside the building to clear the area
   3.

Question 13

safety precautions taken by firefighters when objects must be thrown out of the window during overhaul 4

Answer 13

1. obtain permission from command
2. assign a firefight outside the building to clear the area
3. firefighter acting as guard signals when to throw objects
4. when finished discarding objects notify outside firefighter

Question 14

the most important reason for the absence of collapse information

Answer 14

lack of fire department documentation and record of collapse..( we didn’t keep a record)

Question 15

of the NFPA published a ten-year long study of firefighters killed by building collapse in the study they found that 56 firefighters died in building collapse … what was the breakdown 4

Answer 15

1. 21 died by for collapse
2. 19 died by roof collapse
3. 14 died by wall collapse
4. 2 died by ceiling collapse