Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Brannigan's Building Construction For The Fire Service > Chapter 5 - Fire Behavior and Building Construction > Flashcards

Chapter 5 - Fire Behavior and Building Construction Flashcards

1
Q

Four essential elements for a fire

A

Fuel
Oxidizing agent
Heat
Uninhibited chemical chain reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Phenomenon in which combustible material ignites spontaneously without the application of a flame or spark

A

Auto ignition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Vertical spread of fire on the exterior of a multi-story building from one floor to the floor above

A

Auto exposure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Initial stage of a fire after ignition

A

Incipient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Secondary stage of a fire in which it spreads to adjacent combustible materials

A

Free burning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Transition stage in which exposed surfaces ignite simultaneously and fire spreads throughout the compartment

A

Flash over

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Stage which glowing combustion takes place

A

Smoldering / decay

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where is flame over observed

A

In the ceiling layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the primary influence on a fire burning

A

Oxygen supply

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

If wins exceed what speed will their role be considered from a tactical standpoint

A

10 to 20 mph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the most common example of fire having an effect on the building and its components

A

Charring wood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What temperature does aluminum melt around

A

1200° F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What temperature does aluminum anneal at

A

350° F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When heated gaseous products of combustion burn when oxygen is introduced into an environment in which the oxygen supply has been depleted due to fire

A

Backdraft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Movement of hot gases / smoke from areas of high pressure to low pressure

A

Flow paths

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A more accurate description of flame spread

A

Fire growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The building problem with regard to fire growth based on location (2)

A

Hidden
Exposed

18
Q

The contents problem with regard to fire growth (3)

A

Furnishings
Interior finish
Mercantile stock

19
Q

What must be kept away from light fixtures because the heat from the fixture can ignite the paper

A

Batt insulation with paper facing that is laid in ceilings

20
Q

Foamed plastic insulation should be protected from exposure to flame by what type of covering

A

1/2 in gypsum board

21
Q

What is commonly used as insulating sheathing on wood frame buildings that can support fire in hidden in walls

A

Combustible fiberboard

22
Q

What absorbs heat thereby slowing the progress of fire

A

Lime plaster

23
Q

What material was substituted for wood sheathing and widely used for interior finishes in low-cost construction

A

Low density fiber board

24
Q

What are the three ways in which interior finishes may increase the fire hazard

A
  1. Increase fire extension by surface flame spread
  2. Generate smoke and toxic gases
  3. Add fuel to the fire contributing to flash over.
25
Q

What is high density fiberboard called when it punched with holes

A

Pegboard

26
Q

What material has ignited after a 1 second application of flame from a butane lighter

A

Foamed polyurethane

27
Q

What are four ways to control the problem of fast fire growth

A
  1. Eliminating high flame spread surfaces.
  2. Separating material from the source of combustion.
  3. Cutting off the extension of the fire.
  4. Coating materials
28
Q

Fire retardant surface coatings are effective only if applied how

A

As specified

29
Q

In smoke the solid particulates of what give smoke its opaqueness

A

Carbon

30
Q

What is the most prevalent toxic fire gas

A

CO

31
Q

Harber’s rule states that any exposure in which the concentration is ____ is likely to be dangerous

A

33,000

32
Q

A 10 minute exposure to ___ of CO would be hazardous

A

3500 PPM

33
Q

What concentration of CO may be fatal after only a few breaths

A

12,500 PPM

34
Q

Generation of CO can be up to how many times greater in enclosed voids as in the open

A

50 times

35
Q

What chemicals can be released from any transformer by fire or accident and is extremely toxic

A

Polychlorinated biphenyl. PCB

36
Q

Modern Bunker gear can withstand temperatures above

A

220° F

37
Q

From a tactical point of view regarding fire behavior what is the most important concept to understand

A

Flame over or rollover maybe your last warning sign before flash over

38
Q

Use the gas monitor to ensure CO levels are below what

A

35 parts per million

39
Q

The crew going up to investigate a fire alarm should always have what

A

2.5 gallon pressurized water extinguisher

40
Q

What is the only method by which firefighters can expel CO

A

Ventilation

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

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions