Ch 18 High-Rise Buildings Flashcards

1
Q

What is a Euler’s Law Column? Pg 456

A

Columns that are supported at their sides can carry only a fraction of the weight they can carry when attached at regular intervals.

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2
Q

What are fire towers? Pg 458

A

Are stairways enclosed in a 4 hour fire wall and separated from the floor area by two fire related doors separated by a landing that is open to the outside air or a smoke removal shaft.

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3
Q

What is stack effect? Pg 461

A

Is the natural movement of air within a building. Becomes noticeable in buildings more than 60 ft high.

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4
Q

What is mushrooming? Pg 462

A

Smoke from the original fire area rises up the stairs to the upper floors, and then spreads out through the structure.

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5
Q

What is normal stack effect? Pg 462

A

Outside air temperature cooler than inside temperature.

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6
Q

What is reverse stack effect? Pg 462

A

Outside air temperature greater than inside temperature.

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7
Q

What is stratification? Pg 463

A

When the temperature of the smoke produced isn’t sufficient to cause it to rise to the top of the building.

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8
Q

What is reflex time? Pg 466

A

Is the total time elapsed from the receipt of the alarm until an effective stream is flowing on the fire.

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9
Q

A class a pumped is rated to deliver what? Pg 470

A

One half of its capacity at 250 psi.

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10
Q

What is a concrete core cutter? Pg 472

A

Is a diamond tipped drill used in high rise construction to bore holes up to 8 in.

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11
Q

What is an access stair? Pg 474

A

Unprotected stairway leading from floor to floor within a single tenant occupancy.

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12
Q

The forward staging area should be set up where? Pg 479

A

Three floors below the fire

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13
Q

The staging area should maintain a reserve force of at least what? Pg 479

A

At least 2 attack teams and 2 support teams of at least 3 members each, equipped for forcible entry and overhaul.

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14
Q

At what minimum distance should a fire line be set up in all directions at a serious fire in a high-rise building? p. 465

A

One block

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15
Q

To which floor should elevators be sent when gaining control of the high-rise building’s systems? p. 450

A

Lobby

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16
Q

In what approximate amount of time can a 6-inch reinforced concrete floor be penetrated with the core drill?
p. 473

A

5 minutes

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17
Q

How does the firefighter get to the roof of most high-rise buildings to perform ventilation? p. 462

A

Walk up

18
Q

What is usually the minimum number of ladder company personnel that need to be on the fire floor of the
high-rise? p. 470

A

2

19
Q

Which type of high-rise buildings were involved in the events on September 11? p. 452

A

Lightweight Class 1

20
Q

What should be pressed immediately upon entering the elevator car? p. 468

A

Call cancel

21
Q

At what angle does the lightweight master stream device tend to kickback enough to need to be anchored? p. 471

A

15- 20 degrees

22
Q

If the fire is within what number of floors of the elevator lobby or sky lobby should the firefighters walk
up? p. 468

A

8

23
Q

What is the preferred hoseline to battle a fire in a high-rise where the floor is spacious and open at the
ceiling with partitions at the floor level? p. 470

A

2 1/2-inch line with a 1 1/4-inch solid tip

24
Q

Which device can be used to increase the success of radio usage in the high-rise building? p. 478

A

Post Radio

25
Q

To what value was the required supply by a standpipe lowered in the 1993 revision of NFPA 14? p. 472

A

1250 GPM

26
Q

Which life-threatening injuries should you expect to see the most on the upper floors during a high-rise incident? p. 480

A

Cardiac

27
Q

What is likely to happen to the smoke when a ventilation opening is made if the fire is on an upper floor and the
outside temperature is high? p. 465-466

A

Go into the building

28
Q

How are the exit staircases in most modern high-rises placed in the building? p. 457

A

Central core area

29
Q

How many floors below the fire may firefighters take an elevator when performing rooftop ventilation?
p. 462

A

2

30
Q

How many lines were found to provide a better flow 20 stories above grade when operating from standpipe? p. 471

A

2

31
Q

How frequently should you conduct a precautionary stop the elevator car during the ascent? p. 469

A

Every 5 floors

32
Q

Which building was able to withstand fire that burned out of control for more than 24 hours? p. 456

A

90 West Street

33
Q

How many members for every two floors above grade to the fire will generally be assigned when a stairwell support team is needed during the high-rise operation? p. 479

A

One

34
Q

What is the most important prewar high-rise building feature regarding fire spread? p. 457

A

Absence of central air-conditioning systems that serve more than one floor

35
Q

What is one of the operations officer’s primary duties at the high-rise fire?
p. 478

A

Keeping the hose lines moving forward

36
Q

Which is a correct statement about the conditions present for reverse stack effect to occur in a high-rise?
p. 463

A

Outside air temperature is greater than inside air temperature

37
Q

What happens when the elevator’s inside door is forced while the car is moving? p. 469

A

Stops the elevator

38
Q

Who is responsible for maintaining the resources needed to keep the attack moving during a high-rise fire?
p. 479

A

Staging area officer

39
Q

What is the first step taken in a controlled evacuation of the high-rise building? p. 449

A

Evacuate those in immediate danger

40
Q

What is the greatest danger when using an elevator during a fire in the high-rise building? p. 466

A

Doors opening on the fire floor

41
Q

Where should the command post be established when possible at a high-rise fire? p. 476

A

Lobby