16 Questions
What is the primary factor that determines the efficiency of a firefighting operation?
Performance of the ladder company
What is the primary objective of a ladder company during a firefighting operation?
Providing access and exit points
What is the term used to describe the process of heat transfer through the motion of heated matter?
Convection
What is the fourth element of the Fire Tetrahedron, in addition to oxygen, fuel, and heat?
Chain reaction
What is the primary reason for ventilation during a firefighting operation?
Convection
What is the term used to describe the process of confining a fire to its current location?
Confinement
What is the primary difference between property conservation and overhaul?
Property conservation is an objective, while overhaul is an operation
What is the term used to describe the predictable pattern of heat transfer through convection?
Convection cycle
Why is Fire Resistant construction intended?
To confine the convection cycle
What is the primary cause of Exposure Fires?
Radiation
What is the purpose of Venting in firefighting?
To remove convection heat
What is Conduction in the context of heat transfer?
Travel of Heat through solid body
What is Flash Over in firefighting?
The ignition of combustibles in an area heated through Convection, Radiation or combination of both
What is the most likely cause of Flashover?
Radiation and Convection combined
What is Back Draft in firefighting?
Fire starving of oxygen, in the smoldering stage with the combination of incomplete combustion
What is the result of incomplete combustion in a fire?
Carbon monoxide
Study Notes
Pre-Incident Planning and Building Inspections
- Firefighters gain valuable insight into a building's features through pre-incident planning and building inspections.
- Ladder company provides access, exits, removes heat, smoke, and gases, allowing for greater visibility and enabling engine company to work rapidly and safely.
Ladder Company Objectives
- Ladder company has 6 objectives: rescue, exposures, confine fire, extinguish fire, property conservation, and overhaul.
Fire Spread
- Fire requires oxygen, fuel, and heat to start and sustain combustion, known as the Fire Tetrahedron Triangle.
- Chain reaction is an advanced concept, where fire travels to new fuel sources through convection, radiation, and conduction.
Modes of Heat Transfer
- Convection: heat moves through the motion of heated matter (smoke, hot air, heated gases, embers) in predictable patterns.
- Radiation: heat travels through space, unaffected by wind, and radiates evenly in all directions.
- Conduction: heat travels through solid bodies, depending on the amount of heat and fire applied.
Fire Dynamics
- Flashover: ignition of combustibles in an area heated through convection, radiation, or a combination of both.
- Backdraft: fire starving of oxygen, in the smoldering stage with incomplete combustion, producing carbon monoxide.
Learn about pre-incident planning, building inspections, and ladder company objectives in firefighting, including rescue, exposures, and fire extinguishing.
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