Flashcards in OG 5.23 Ventilation Deck (36)
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1
Today the time from ignition to flashover is __ times faster than legacy homes of the past.
30 times faster
2
Command should always consider ventilation for what purpose before fire control property conservation?
Life safety
3
The rate at which energy is released by the burning of the fuel and oxygen mixture is known as what?
(HRR) Heat Release Rate
4
A fire in which the HRR or growth of the fire is slowed because the fire is consuming the available oxygen and no new oxygen is entering the fire area is known as what?
Ventilation limited fire
5
What is the radio terminology used to let the ventilation team know it's an appropriate time to break the selected window?
"Take glass"
6
What side of the house is upwind from the intended ventilation point?
Windward side
7
The side of the house that is downwind from the intended ventilation point is called what?
Leeward side
8
What are the primary responsibilities of the first due truck company on the box alarm?
Life safety
9
If a first due truck determines that vertical ventilation is needed for life safety, What do they need to do?
Announced that over the radio so the second truck can change their priorities in route.
10
What is the suggested tool complement for the "irons firefighter?"
1. Entry set
2. Pick headed axe
3. other forcible entry tool
4. search rope
11
What is the suggested tool complement for the "hook firefighter?"
1. 6 foot hook
2. TIC
3. Pick headed axe
4. water extinguisher
12
What is the suggested tool complement for the apparatus operator (AO)?
1. TIC
2. pick headed axe
3. ladder to reach upper floors
13
What is the suggested tool complement for the outside vent firefighter (OV)?
1. 6' roof hook
2. Pick headed axe
3. second ladder to reach upper floors
14
Typically, tiller trucks will assign the officer and inside firefighter to what positions?
Inside team duties:
Officer "hook"
Firefighter "irons"
15
On a tiller truck, the tiller driver will be on the outside team with the apparatus operator and will be assigned to what position?
Outside Vent (OV)
16
On what three types of trucks will the officer and apparatus officer be assigned the outside team?
1. tower trucks
2. ariel platforms
3. straight ladder trucks
17
What are the three operational modes for the first arriving truck company?
1. All in for search
2. All out for ventilation
3. Splitting
18
An oxygen deprived fire is usually indicated by what sign?
Heavy Black smoke
19
What is the best way to control a low-pressure vent point?
Door control
20
All ventilation must be coordinated with what two teams?
Command
Interior crews
21
If possible, ventilation openings should be placed where in comparison to operating hoselines?
Opposite hoselines
22
What should never be created behind an advancing hoseline?
ventilation openings
23
Any ventilation opening must be preceded by what?
Verbal Radio communications to coordinate.
24
What are two signs confirming water is being applied to the fire area prior to ventilating?
Audible indications - hose streams hitting the walls
Dark smoke turning into steam
25
What are the two types of natural
Ventilation?
Horizontal and vertical
26
What are the three types of forced ventilation?
1. Negative pressure
2. positive pressure
3. Hydraulic
27
Natural vertical ventilation holes can be placed in what three areas?
Skylights
Roof vents
Roof doors
28
When working on lightweight construction buildings firefighters must never ventilate where?
Directly over the fire
29
What are four smoke conditions we need to be observant about?
Volume
velocity
density
color
30
