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Brannigan's Building Construction For The Fire Service > Chapter 8 - Wood-frame Construction > Flashcards

Chapter 8 - Wood-frame Construction Flashcards

1
Q

Lumber that is 8 in or more in its smallest dimension.

A

Heavy timber. (205)

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2
Q

What type of walls do post and frame buildings have?

A

Not structural or load-bearing. (206)

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3
Q

In what type of building do the studs run two or more stories high from the foundation to the eve line?

A

Balloon frame. (207)

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4
Q

Who are often the culprits for starting fires in the walls of balloon frame buildings?

A

Plumbers. (208)

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5
Q

Where is the worst place for a fire to start in a balloon frame building

A

The basement.

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6
Q

What is the one common vertical means of fire spread in balloon frame and platform frame buildings?

A

The open stairwell.

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7
Q

What construction feature converts a platform frame into a balloon frame building

A

A soffit.

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8
Q

What type of construction has the positive benefit of reducing the volume of concealed space in which fire can burn

A

Plank and beam

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9
Q

What are trusses most often used as?

A

Beams.

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10
Q

Gusset plates contain a series of small teeth what size

A

3/8”

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11
Q

During a fire the presence of truss floors may be disclosed how

A

Smoke or Fire pushing through the wall at the floor line

Exterior sheathing plays a critical role in whether this effect is visible

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12
Q

Any exposure in which the product of concentration is _____ is likely to be dangerous

A

33,000

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13
Q

A 10 minute exposure to how much CO WOULD BE HAZARDOUS AND POSSIBLY INCAPACITATING

A

3500 ppm

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14
Q

How much PPM can be fatal after a few breaths

A

12,500

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15
Q

What is the flammability range of CO

A

12.5 to 74 percent.

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16
Q

What is the ignition temperature of CO

A

1128° F

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17
Q

What two areas in lightweight wood frame structures are not protected by sprinklers

A

Unoccupied attics
Floor void spaces

18
Q

What three spaces are not protected by sprinkler systems

A

Bathrooms under 55 ft square
Closets under 24 ft square
Balconies

19
Q

Wooden I-beams have shown failure and how many minutes

A

6 minutes

20
Q

What can be considered the most dangerous of all structural members to firefighters? (2)

A

Wooden I-joists
Lightweight wood trusses

21
Q

What are considered truly disposable buildings

A

Truss frame

22
Q

What is the major problem of combustible construction

A

Fire spread through hidden voids.

23
Q

Firestops typically limit what type of movement

A

Vertical movement through relatively small concealed passages.

24
Q

Draft stops limit what type of movement

A

Horizontal movement through large concealed passages.

25
Q

What are the two types of firestopping

A

Inherent and legal

26
Q

In wood platform frame structures what provides inherent firestopping

A

Sole plate.

27
Q

What is the recommended location for firestopping in multiple unit dwellings?

A

Along the tenant separations.

28
Q

Wood cannot be made what?

A

Fireproof or non-combustible

29
Q

What stress is plywood resistant to

A

Shear

30
Q

What readily extends fire vertically?

A

All combustible siding.

31
Q

What type of shingles explode when heated

A

Asbestos

32
Q

What type of siding has no fire resistance value

A

Asphalt felt siding.

33
Q

In a bearing wall headers can be seen on which row

A

7th

34
Q

What hazard should be the dominant consideration with regards to wood shingles

A

Conflagration

35
Q

In newer construction which is stronger the floor or the roof?

A

The floor.

36
Q

OSB loses its structural strength and fails when it becomes saturated with what

A

Water

37
Q

What is an indicator of a balloon frame home

A

Tall narrow windows

38
Q

If a fire starts in the basement you need to quickly check where

A

The attic

39
Q

What is the safest and most effective way to attack a fire in a balloon frame structure

A

Removing the exterior siding

40
Q

In a wall fire the attic is considered what

A

An extension of the wall

41
Q

If a fire is large enough to require a blitz attack what is the rescue profile percentage

A

0

42
Q

What is the major problem with combustible construction

A

Fire spread through hidden voids

Brannigan's Building Construction For The Fire Service (13 decks)

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