Ch 15 Multiple Dwellings Flashcards
What are the two greatest threats to the structure in the event of Fire are from what? Pg 394
Pipe chases and channel rails, the furred out spaces around vertical steel I-beams.
Elevators are generally required in to be built with at least how many hours of fire resistance ratings? Pg 394
2 hour
Whenever you are searching for fire or taking a hose line above the fire, and you are working in a very heavy smoke condition, try to find what to open it up? Pg 394
A wall directly behind the toilet and open it up
What is considered much more difficult to locate than a plumbing chase since we don’t have any outward sign to tip is off where it might be? Pg 395
Channel rail void
Steel framing is used in which class of buildings that are more than 25 feet wide? Pg 395
Class 3
What is a channel rail? Pg 395
Is a steel column that runs the height of the building supporting horizontal girders. They are often boxed out with wood lath and offer fire another highway for extension to the cockloft.
Operations at multiple dwellings where so many people may be trapped should focus on what? Pg 395
Should focus on removing those in greatest danger first.
Members isolated from the fire area if they choose the improper stair is called what? Pg 399
Isolated staircase
Where a stairway provides access only to those apartments in its particular wing is called what? Pg 399
Wing stair
What is a transverse stair? Pg 400
When you can cross over (transverse) from one stairway to another on all of the floors.
Where the staircase maintains a constant location on each floor is called what? Pg 400
Return stairs
Which stairs run from the front of the building toward the rear? Pg 400
Straight run stairs
No more than how many lines should be stretched up a single staircase? Pg 401
2
Generally, the three greatest areas of danger to the occupants, in order are? Pg 407
- Fire Floor
- The Floor Above
- The top floor
What are the most dangerous multiple dwellings to operate in? Pg 408
Those that have been renovated
Is a building has a fire escape and cockloft vent, what class building is it? Pg 409
Class 3
A building that does not have any fire escapes or cockloft vents is considered what class building? Pg 409
Class 1
What is a common problem in Class 1 buildings? Pg 409
Scissor stairs
When a building exceeds eight stories which class building is required? Pg 412
Class 1
What will withstand direct exposure to 1500 degrees for an unlimited time, and 2,000 degrees for up to 15 minutes? Pg 413
Hotstop-M
A second smaller fire curtain carried by every ladder company is called what? Pg 413
K.O.
Where are the public halls located for a sandwich apartment? p. 416
Every three floors
What fire resistance rating is required for separations between the apartment and the public hall in the fireproof multiple dwelling? p. 410
2 hour
Where is it best to stretch the hoseline when the stairway nearest to the fire area is remote from the main entrance on the ground floor? p. 400
One floor below the fire
What speed must the wind not exceed for PPV fans to be able to pressurize the attack staircase? p. 413
25 mph
How many floors down will firefighters have to travel to hook up to the standpipe that is located on the same side when scissor stairs are present in the fireproof multiple
dwelling? p. 410
Two
What should be included in the preplan to allow personnel
to understand the spatial relationship between wings of the multiple dwelling? p. 403
Aerial view
Which building should be used to reach the roof if the buildings abut each other? p. 406
Adjoining building
What was the turning point during wind-driven fires in the past? p. 414
Fire began to decay
What has been placed in apartment buildings in New York to separate them from the interior stairway?
p. 392-393
Fire-rated door
What are some of the most challenging fires in multiple dwellings?
p. 402
Cockloft fires
What will the next tasks of the roof team depend upon once the stairways and vertical shafts have been vented?
p. 406
Fire location
During which time of the year is the wind-driven fire most likely to occur?
p. 411
Cold months
In shaped multiple dwellings, what is most often the place you will take a defensive stand if fire conditions prevent you from advancing down the hallway toward the fire area? p. 404
Throat
What is the minimum number of families that a multiple dwelling will house? p. 391
Three
What are the two greatest threats to the multiple dwelling structure in the event of a fire from? p. 394
Pipe chases and channel rails
Up to how many floors above can the fire window blanket be deployed and lowered into position? p. 413
Two
What is one of the biggest problems at fires in the sandwich apartments?
p. 417
Occupants fleeing the building
What has been found to be the culprit in wind-driven fires? p. 412
Air movement in the building
At what approximate angle does the pipe bend on the floor-below nozzle?
p. 414
135 degrees
With which type of stairs will the staircase door become farther from the front of the building at each level?
p. 400
Straight-run
What is generally the fire-resistance rating required for elevators? p. 394
2 hours
What is the preferred way of accessing the roof of a multiple dwelling? p. 406
Aerial device
What tends to be on the same level as the entrance in duplex and triplex apartments? p. 416
Kitchen
With which type of stairs can the firefighter cross over from one stairway to another on all of the floors? p. 400
Transverse stairs
