Triangles Not Circles
Oxygen, Fuel, & Heat make this.
What is the fire triangle?
The transmission of energy as electromagnetic wave without an intervening medium.
What is Radiation?
The standard of international unit for power.
What is the watt (W)?
Fire with limited ventilation in which the heat release rate or growth is limited by the amount of oxygen available to the fire.
What is a ventilation limited fire?
What is thermal layering?
Oxidizing Agent, Fuel, Heat, and _______ make up the fire tetrahedron.
What is Chemical Chain Reaction?
The transfer of heat through and between solids.
What is Conduction?
The ratio of the mass of a given volume of a liquid compared to the mass of an equal volume of water at the same temperature.
What is specific gravity?
Fire with adequate oxygen in which the heat release rate and growth rate are determined by the characteristics of the fuel, such as quantity and geometry.
What is a fuel-limited fire?
The interference between the hot gas layers and coller layer of air.
What is the neutral plane?
The most common form of ignition and occurs when a miture of fuel and oygen encounter an external heat source with sufficient heat or thermal energyy to start the combustion reaction.
What is piloted ignition?
The transfer of thermal energy by the circulation or movement of a fluid.
What is convection?
The primary consideration is the surface area of the fuel in proportion to its mass.
What is the surface-to-mass ratio?
Range between the upper flammable limit and lower flammable limet in which a substance can ignite.
What is the flammable (Explosive) Range?
Rapid transition from the growth stage to the fully developed stage.
What is flashover?
Ignition that occurs without any external flame or spark to ignite the fuel gases or vapors.
What is autoignition?
A chemical reaction involving the combination of an oxidizer with other materials.
What is oxidation?
The minimum temperature at which a liquid gives off sufficient vapors to ignite, but not sustain combustion, in the presence of a piloted ignition source.
What is Flash Point?
Electrically charged, highly reactive parts of molecules released during combustion reaction.
What are free radicals?
Condition in which the unburned fire gases that have accumulated at the top of a compartment ignite and flames propagate through the hot gas layer of across the ceiling.
What is rollover?
The chemical decompostion of a solid material by heating.
What is pyrolysis?
The propensity of a material to conduct heat within its volume.
What is thermal conductivity?
The temperature at which a piloted ignition of sufficient vapors will begin a sustained combustion reaction.
What is Fire Point?
The flow of fire gases that rise from a plume until they encounter the ceiling and then begin to spread horizontally.
What is the ceiling jet?
Instant explosion of superheated gases that occurs when oxygen is introduced into an oxygen-depleted confined space.
What is a backdraft?