Chapter 5 Collapse Dangers Of Parapet Walls

Question 1

_____ is one of the most dangerous ball for the firefighter can encounter at a fire

Answer 1

parapet wall

Question 2

what is most dangerous area outside of burning structure

Answer 2

sidewalk directly in front of the building

Question 3

what is the most dangerous parapet wall

Answer 3

the one constructed does the front wall of a one-story structure above a large display window such as found in supermarket shopping malls and rows of stores

Question 4

where the five designed deficits of the parapet wall

Answer 4

1. freestanding wall
2. steel lentil
3. stew enforcement rods embedded in the parapet
4. coping stones and cornices
5. unfinished brick

Question 5

parapet walls with ___ often attached to steal reinforcement rods making them the most susceptible to total collapse

Answer 5

ornamental cast stone and decorative terra-cotta

Question 6

coping stone or capstone of a parapet wall can weigh as much as

Answer 6

10 to 50 pounds

Question 7

how do bowstring trusses contribute to parapet wall collapse

Answer 7

wouldn’t tresses we can buy flame lose strength and as they begin to fail the weight of the roof shifts from the trusses to the front and rear pair put walls…. can cause violent front parapet wall collapse seconds after roof caves in

Question 8

when should the officer in command start to inspect the pair put wall for signs of failure

Answer 8

if interior lines are unsuccessful in the building becomes involved, not during the early stages of the fire ( contents only)