FFP Ventilation

Question 1

Define Deflagration

Answer 1

An explosive event that occurs during a backdraft when O2 is introduced & mixed w/flammable gases for a fire burning in a confined space that consumed prior available O2

Question 2

Flashover occurs: surfaces exposed to thermal radiation from fire gases in excess of _F reach ignition temperature simultaneously

Answer 2

1100 F (Results in fire involvement of entire compartment or enclosed space)

Question 3

_ is defined as a fire in which heat release rate & fire growth are controlled by characteristics of fuel because there’s adequate O2 available for combustion

Answer 3

Fuel limited fire

Question 4

Fully Developed Stage Occurs (before/after) flashover, resulting in floor to ceiling burning within the compartment

Answer 4

After

Question 5

During _ Stage heat is transferred from fire & combustion products are pyrolyzing adjacent fuel sources. Rollover occurs

Answer 5

Growth

Question 6

Define Pyrolysis

Answer 6

Transformation of materials into their basic compound when subjected to heat. Contents continue to off-gas & add to flammable fuel load as long as material subjected to elevated temperatures

Question 7

Rollover indicates that fire conditions are rapidly deteriorating & _ may be imminent

Answer 7

Flashover

Question 8

Define Ventilation Induced Flashover

Answer 8

Initiated by intro of O2 into a pre-heated, fuel rich (smoke filled), O2 deficient area. More prevalent w/modern content fires.

Question 9

What is a priority when entering a fire area via window

Answer 9

Close the door to that room/area in order to isolate area being searched from fire area

Question 10

Ventilation for Extinguishment

Answer 10

Coincides w/Eng extinguishing fire. Replaces “Vent for Fire”

Question 11

Vent for Search

Answer 11

Facilitates movement of a FF into an area to conduct a search for victims. Replaces “Vent for Life”

Question 12

Progression of Modern Content Fire Development Curve

Answer 12

Incipient stage, Rapid Growth consuming O2 quickly, Earlier O2 limited Decay stage (Remains in Decay if NO O2 added to fire area). If O2 added- rapid 2nd growth stage followed by Ventilation Induced Flashover & transition into fully developed stage. Ends in 2nd decay stage

Question 13

List some signs that indicate wind driven fire

Answer 13

Smoke & fire venting downward, horizontally, or pulsing from an opening in the bldg.

Question 14

Any unusual Ventilation profile must be immediately relayed to _

Answer 14

Ladder Officer & IC

Question 15

Why is it important for Lad Off to notify IC that the door has been controlled to the fire apt

Answer 15

Gives location of fire for Eng, Confirms interior conditions tenable, & Roof FF can now initiate Vertical Ventilation

Question 16

What shall Lad Co do if they cannot isolate/locate the fire due to untenable conditions

Answer 16

Interior team shall re-group back at entrance door prior to re-opening door for HL advancement. Members shall advance behind the charged HL

Question 17

T/F Once fire is venting out windows, it’s safe to vent remote from fire’s location

Answer 17

False- Uncoordinated ventilation can intensify fire conditions & has potential to create a ventilation induced flashover including areas remote from your location

Question 18

All Horizontal Ventilation tactics for both Vent for Extinguishment & for Search shall include controlling door & window openings until _

Answer 18

Charged HL advancing within fire area & extinguishing the fire

Question 19

The Ladder Co Off inside fire are shall ensure door control at _

Answer 19

Fire area entrance

Question 20

What shall Lad Off do once he has established door control of fire area

Answer 20

Order initial vertical ventilation (bulkhead, scuttles, or skylights over stairwells & hallways)

Question 21

When can Roof FF Vertically Vent

Answer 21

No vertical ventilation unless Roof FF directly communicates w/& receives approval from Lad Off. May perform WITHOUT direct communication upon hearing HT transmission that interior team has door control of fire, or charged HL advancing into fire apt

Question 22

Horizontal Vent for Extinguishment tactic applies to _

Answer 22

The window in immediate fire area & only for the FF venting immediate fire area. Any additional horizontal vent must be communicated w/& coordinated by Lad Off in that area

Question 23

A Known Life Hazard is defined as _

Answer 23

Victim can be seen by rescuer, Heard by rescuer, or FF has info from a credible source or person at scene indicating location of life hazard

Question 24

A FF operating from the exterior of a fire bldg asks for permission to perform Vent for Search & receives permission to do so. After clearing the window & before entering what must be done

Answer 24

Reassess smoke & heat conditions to determine if area is tenable. If conditions prevent access immediately notify Lad Off. If tenable reach in & probe immediate area for potential victims

Question 25

What is done if a victim is found

Answer 25

Immediately transmit 10-45 and include your location & planned exit route. If victim found prior to isolating the room, FF shall isolate room & proceed w/rescue effort

Question 26

Place the progression of modern content fire behavior in the proper order (pg 3) 1. Early decay 2. 2nd decay 3. Ventilation limited 4. Incipient 5. Ventilation Induced flashover transitioning to fully developed 6. A more rapid and intense 2nd growth (if additional oxygen admitted) A) 4, 5, 1, 6, 3, 2 B) 4, 1, 6, 5, 3, 2 C) 4, 3, 1, 6, 5, 2 D) 4, 3, 5, 1, 6, 2

Answer 26

C

Question 27

Horizontal ventilation tactics include controlling door and window openings until a charged hoseline is advancing into the fire apartment. Do you agree or disagree with the above statement? (FFP Vent 7.2) A) Agree or D) Disagree

Answer 27

D= (Horizontal ventilation tactics include controlling door and window openings until a charged hoseline is advancing within the fire area and extinguishing the fire.)

Question 28

Roof FF can only perform vertical ventilation after directly communicating with the Ladder Off inside the fire apartment or when a charged hoseline is within the fire area and extinguishing the fire. Do you agree or disagree with the above statement? (FFP Vent 10.2.1 Note) A) Agree or D) Disagree

Answer 28

D= (The Roof FF may perform vertical ventilation without direct communication upon hearing radio transmissions that the interior team has door control on the fire floor, or a charged hoseline is advancing into the fire apartment.)

Question 29

T/F No vertical ventilation shall be performed unless Roof FF directly communicates w/& receives approval from Lad Off, regardless of radio transmissions stating that a charged HL is advancing into the bldg

Answer 29

True. Roof may perform vertical vent WITHOUT direct communication upon hearing radio transmissions that Inside Team has door control on fire floor or charged HL advancing into FIRE APARTMENT (Not bldg)

Question 30

Roof FF may perform initial vertical vent of bulkhead _ A. Roof FF hears that the Inside Team has door control on the fire floor B. Eng Off requests ventilation to relieve conditions in public hallway C. Eng Off indicates that his HL is stretched, flaked out & just waiting for water D. Lad Off approves of Vertical ventilation

Answer 30

A & D

Question 31

T/F Upon entering a room from the exterior members should immediately begin a search & upon locating the door to the room they should close the door to isolate the room

Answer 31

False: Isolate room 1st by closing door, then search 12.6