Brainscape's Knowledge GenomeTM

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


See full index

ISO > Chapter 6 > Flashcards

Chapter 6 Flashcards

1
Q

Which of the following is Not releases with complete combustion of a material

A

Hydrogen cyanide

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

Which sets the stage for understanding the amount of fuels that are off gassing in a given space

A

Smoke volume

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

What is turbulent smoke that has filled a compartment a sign of

A

Flashover

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

Which is true about turbulent smoke

A

it is caused by serious heat

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

What tells you how much fuel is laden in the smoke

A

Density

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

What is the collective flammable range in air of gases typically found in smoke

A

1% to 74%

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

What color will ash add to the smoke

A

White

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

How many phases will the fire go through that is ventilation controlled

A

Six

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

Where does flame spread when the smoke has pressurized a room

A

With the smoke flow

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

Where does flame spread when the smoke has pressurized a room

A

With the smoke flow

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

In what timeframe does the backdraft occur after introduction of air

A

Instantaneous

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

What warning sign is present if there is brown smoke from structural spaces of a lightweight wooden building

A

Collapse

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

Which hostile fire event has a warning sign of exhaust flow paths that intermittently puff or try to suck air

A

Explosive growth phase

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

What growth phase of the ventilation controlled fire is also been labeled the fuel controlled phase

A

Initial growth phase

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

What color smoke is seen before a backdraft occurs

A

Yellowish gray

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

Which is seen as warning sign of a flam-over

A

Increase in smoke speed

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

What should be looked at when trying to determine if white/grey smoke is from early stage heating or late stage heating

A

Veleocity

18
Q

Which typically occur in a trapped smoke area away from the fire

A

Smoke explosion

19
Q

What is the first step taken when reading smoke

A

View the smoke VVDC

20
Q

What is the breaking down compounds into other substances during pyrolysis

A

Heat

21
Q

What is the explosive growth phase a combination of

A

Flashover and Flame over

22
Q

What phase occurs immediately after the ventilation limited phases

A

Explosive growth phase

23
Q

What color smoke is seen with almost all materials when they start smoking

A

White

24
Q

After what amount of time during a PPA should fire behavior and smoke flow increase at the exhaust opening

A

One minute

25
Q

How many of the four attributes of smoke must be changing for the ISO to deem firefighting efforts successful

A

Four

26
Q

What should happen to smoke when rather is cold and humid

A

Sink and remain dense

27
Q

What is seen as the intermittent ignition of small pockets of smoke

A

Ghosting

28
Q

What is a suspended or propelled liquid in smoke

A

Aerosol

29
Q

Why does smoke rise

A

Due to heat

30
Q

Carbon Monoxide (CO)

A

Self ignition Temp= 1,128F
Flammable Range= 12-74%
CO is considered a gas only and therefore doesn’t have flashpoint

31
Q

Hydrogen cyanide (HCN)

A

Flashpoint=0F(-18C)
Self ignition Temp= 1,000F
Flammable Range= 5-40%
HCN is produced when high temperatures break down nitrogen containing products. HCN is quite flammable and is considered extremely toxic

32
Q

Benzene (C6H6)

A

Flashpoint= 12F
Self ignition Temp= 928F
Flammable Range= 1-8%
Most plastics release benzene while burning or pyrolyizing. Benzene is also a common product from the burning of fuels oils

33
Q

Acrolein (C3H4O)

A

Flashpoint= -15F
Self ignition Temp= 450F
Flammable Range= 3-31%
Acrolein is a by product from the incomplete combustion of wood, wood products and the cellulosic materials. “poly plastics” can also render acrolein

34
Q

Turbulent smoke that fills a box

A

Warning sign of impending flashover

35
Q

Thick, black, fast smoke

A

Close to the seat of the fire, super hot smoke capable of instant ignition may be a ventilation limited fire that needs air

36
Q

Thin, black, fast smoke

A

Flame pushed smoke, fire nearby that is well ventilated

37
Q

Dirty white smoke with velocity

A

Heat pushed smoke that has traveled a distance or has had the carbon/hydrocarbon filtered (like smoke through a crack)

38
Q

Same color (white/grey) of smoke and same velocity from multiple openings

A

Deep-Seeded fire, possibly located well within a building or in combustible voids and concealed spaces

39
Q

Low volume white smoke and same velocity from multiple openings

A

Working fire deep within

40
Q

Browns smoke

A

Unfinished wood reaching late heating(can support flame) usually a sign that a contents fire is transitioning into a structure fire, when coming from a structural spaces of lightweight wood structures, a warning sign of collapse

41
Q

Yellowish grey smoke from cracks or seams

A

Sulfur compounds: a warning sign of impending backdraft

ISO (10 decks)

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