Fire Control 202.04 Flashcards
What is the greatest difference between commercial and residential?
Ability to impact that life safety problem.
Do you want to perform a search on a commercial fire?
Search operations in large open areas, large
complex interior arrangements, or industrial settings with severe or worsening fire and smoke
conditions are ineffective and dangerous. As in any structure, the best thing we can do for any
potential victims is to extinguish the fire when possible. In cases of a known rescue, a targeted
search is possible
How do you extinguish commercial fire?
Commercial fires are more
complex, involve large areas and large content loads that can produce intense, severe fire conditions. The best opportunity to extinguish commercial fires is to catch them at their smallest state after arrival with a well-executed fire attack that overwhelms the fire conditions.
Where do you direct you rescources on a commercial fire?
All resources should be directed to fire attack operations from the onset unless a known rescue is
present.
When working in the offensive strategy, the Company Officer should consider the need to attack
the fire with?
large volume handlines capable of flowing a minimum of 250 GPM from the most
advantageous positions. NFPA 1710 standard is a minimum of three hand lines with an overall
volume of 500 GPM or greater. Water application may be done from an exterior position utilizing
a transitional attack to improve conditions prior to entry.
The greatest challenge with vertical ventilation on a commercial building?
the ability to create a large enough opening in comparison to the building volume to provide adequate ventilation
What is the 150 feet rule?
The simple expectation is that no fire companies should operate on the interior of any structure, during firefighting operations, beyond their ability to retreat to an area of safe refuge
prior to their low air alarm going off.
What are Standard water flows from hose lines and appliances
Residential
-150 GPM – (2.5 gallons per second) (1.75” hose lines with automatic nozzles)
Commercial
- 250 GPM - (5 gallons per second) (2” and 2.5” hose lines with fixed gallonage
or smooth bore nozzles)
- 500 GPM - (8 gallons per second) (portable appliances) - 600+ GPM – (10+ gallons per second) (deck gun or ladder pipe)
These expectations meet or exceed national best practices and NFPA 1700 and 1710 guidance.
What is the standard nozzle reaction for single firefighter operations?
70 lbs
What are circumstances that are reasonable not to lay in?
- Fire with unknown location. ( Neighborhood or apartment, high rise)
- Known rescue
- Need for rapid fire attack
- Hydrant within 50 feet.
Offensive strategy
an exterior and/or interior fire attack, from inside the hazard zone, with
appropriate support work to best support creating and maintaining tenable spaces in conjunction with search operations depending on the rescue profile and occupancy type.
Defensive strategy
—A fire attack on the fire structure/occupancy from the most advantageous positions and outside of the hazard zone. This fire attack should also work to reduce fire extension into exposures, when possible, from the most advantageous positions (interior or exterior), depending on structure, conditions, and position in the risk management plan.
Basic Offensive Plan
• Assume command
• Incident size up and determination of critical factors
• Initial fire attack from the most advantageous position with most appropriate water
volume
• Conduct a primary search in coordination with fire attack when possible
• Provide coordinated support activities (e.g., ventilation, forcible entry)
• Support fire attack from the next most advantageous position with appropriate water volume
• Address loss control and property conservation
• Evaluate actions and revise strategy and tactics as necessary
Basic Defensive Plan
• Assume command
• Incident size up and determination of critical factors
• Write off what is lost, identify, and protect savable exposures
• Attack the fire from the most advantageous positions with most appropriate water
volume (large volume devices, well-placed positions)
• Work to support the needs of a high-volume fire attack (necessary water supply, pumped
water, etc.)
• Ensure adequate resources to support the operation fully
• Address fire extension, life safety, and loss control and property conservation in
exposures if risk management and strategy will allow
• Evaluate actions and revise strategy and tactics as necessary
