Ch. 10 Mission of Attack Flashcards
Mission of attack is to _______________ in the area assigned.
Coordinate suppression efforts
The incident commander’s task is to focus. The officer assigned to attack has ________.
Focus also.
______ focuses on the incident.
______ tunnel in (focus) on the task assigned.
______ do the work.
Command.
Division or group LEADERS.
Crews
You can put a lot of fire out with 500 gallons of water if you use a little discipline: (4)
Don’t throw water at smoke.
For most interior attacks, INDIRECT is the BEST.
Quickly pull ceilings to check for vertical extension.
Use positive pressure ventilation after you have identified/darkened down fire
For most interior attacks at single-family homes, _______ attack is the best because it provides BEST use of water and LEAST disruption of thermal balance.
Indirect attack (straight stream bounced off the ceiling)
Once command has been established, ________ can be established and _________ put in place.
Water supplies.
Back up lines.
The officer assigned to attack has three responsibilities:
Safety of attack crew.
Putting out all the fire in the area assigned.
Keeping command informed.
Any group or division leader’s first responsibility is:
Safety of the crew
If command send you into area where extent of fire is becoming untenable or affecting the structure to point where stability is jeopardized , the officer needs to: (2)
Protect the crew.
Take some form of evasive measures
__________ continually evaluating heat and smoke and stability of the floor.
Attack officer
Things in common for methods of fire attack
Differentiate between interior and exterior attack.
Differentiate between nozzle and stream types.
Differentiate between different types and stages of fire growth.
Two basic fire strategies are:
Offensive and defensive
Each form of fire attack is distinct and depends on: (5)
Extent of fire on arrival. Savable victims. Ability to operate inside. Stability of structure. Ratio of risk to gain.
Objective of any strategy (aka extinguishment process)
Confine fire (nozzle between fire/property). Control fire (reduce heat). Extinguish fire (overhaul).
CCE Vs HOT = LCE (locate/confine/extinguish)
Offensive strategy calls for an aggressive interior attack. The key to this strategy is __________________.
Confine fire to smallest area possible
In offensive strategy, command believes (3 things):
Quick interior attack can be successful.
Structure is worth saving.
RISKS associated with sending crews inside NOT GREATER than value of materials being saved
NFA water flow formula
L x W divided by 3 = flow or gpm to extinguish
Tactic using either smooth or solid streams applied directly to burning material. Intent is to cool the surface of the burning material.
Direct
3 tactics of offensive strategy
Direct (most common).
Fog.
Indirect (best).
Advantages and disadvantages of Interior Direct attack (6/3)
Adv.
-greater reach, not a lot of steam, won’t drive out crews, penetration, knockdown power, doesn’t push fire.
Disadvantage.
-more water needed, more water damage (less heat absorption), disturbs thermal balance
Tactic that should not be used or used sparingly in interior structural firefighting
Fog
Two instances in which fog is advocated
First is fire must be HELD to a specific area.
-can hold a lot of fire and only used in an emergency
Second is for quick VENTILATION purposes (20,000 cf air per minute).
Advantages and disadvantages of Interior Fog attack (2/3)
Adv.
- max heat absorption (water droplet=350 microns), stream can hold/change direction of fire (#1 reason advocating fog, other vent).
Disadv.
- max steam and body cannot tolerate, disrupt thermal balance (most), little reach/penetration
Tactic where straight or solid stream is aimed at ceiling, then deflected off the ceiling and allowed to rain down on the fire.
Indirect
