Chapter 13 Below-Grade Fires: Basements and subbasements, cellars and subcellars, and crawl spaces Flashcards

1
Q

How does the tactics handbook define basements and cellars

A
```basement = at least 50% its height ABOVE grade
cellar = at least 50% its height BELOW grade```
2
Q

This area is located entirely below a cellar with extremely limited access and ventilation

A

Subcellar

3
Q

What is the minimum SCBA cylinder size that should be used for subcellar fire?

A

45-minute

4
Q

What are indicators of below grade fire?

A

smoke from every door, window, and seam with no visible fire
dark smoke from chimney
smoke pushing up the cracks at the door threshold

5
Q

What is the first hoselines job at a fire near stairs?

A

Stop extension of fire to floors above

6
Q

Where is the lock usually located on outside cellar doors?

A

Near the building wall rather the street

7
Q

What should be mandatory of a second line if the first line will attempt an interior approach to cellar or basement fire?

A

Second line will be stretched to the same opening as the first

8
Q

What size line must a cellar nozzle be connected to?

A

2 1/2 or larger

9
Q

How long should you wait on a nozzle to knock down the fire before moving it?

A

1 minute

10
Q

In balloon framing what is the board that the joists rest on?

A

ledger or ribbon board

11
Q

In balloon frame house with fire in the wall where should the first line be stretched on a cellar fire?

A

to the basement by most direct means

12
Q

In balloon frame house with fire in the wall where should the third line be stretched on a cellar fire?

A

to the top floor or attic

13
Q

What should always be done before going down a cellar stairway with a hoseline

A

Charge it

14
Q

How much hose should you have before entering the cellar on a commercial building?

A

Twice the depth of the store plus one length

15
Q

Concrete, terrazzo, and tile floors weigh how much per square foot?

A

150 pounds

16
Q

How much does 4 inch thick square foot of concrete weigh?

A

50 pounds