Characteristics of Solid-Fuel Fires
The stage of fire development where heat release rate has reached its peak within a compartment.
What is the fully developed stage?
A transition phase in the development of a compartment fire in which surfaces exposed to thermal radiation reach ignition temperature more or less simultaneously, and fire spreads rapidly throughout the space, resulting in full room involvement.
What is a flashover?
The lowest temperature at which a liquid or solid produces a flammable vapor.
What is the flash point?
The range in concentration between the lower and upper flammable limits.
What is the flammable range?
Agitated, boiling, angry-movement smoke, which indicates great heat in the burning building.
What is turbulent smoke flow?
The early stage of fire development where the fire's progression is limited to a fuel source and the thermal hazard is localized to the area of the burning material.
What is the incipient stage?
The stratification that occurs in a room as a result of a fire.
What is thermal layering?
The temperature at which the vapor pressure of a liquid equals the surrounding atmospheric pressure.
What is the boiling point?
The weight of an airborne concentration as compared to an equal volume of dry air.
What is vapor density?
The quantity of smoke, which indicates how much fuel is being heated.
What is smoke volume?
The three factors that contribute to the configuration of fuel is the surface-to-mass ratio, the orientation of the fuel, and this.
What is the continuity of the fuel?
An explosion resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion.
What is a backdraft?
The lowest temperature at which a liquid will ignite and achieve sustained burning when exposed to a test flame.
What is the fire point?
LEL
What is the lower explosive limit?
Smooth or streamlined movement of smoke which indicates that the pressure in the building is not excessively high.
What is laminar smoke flow?
The stage of fire development where the heat release rate from an incipient fire has increased to the point where heat transferred from the fire and the combustion products are pyrolyzing adjacent fuel sources and the fire begins to spread across the ceiling of the fire compartment.
What is the growth stage?
The condition in which unburned fuel from the originating fire has accumulated in the ceiling layer to a sufficient concentration that it ignites and burns.
What is rollover?
The ability of a substance to produce combustible vapors.
What is volatility?
The weight of air is assigned the value of this.
What is 1?
The speed of smoke leaving a burning building.
What is smoke velocity?
The stage of fire development within a structure characterized by either a decrease in the fuel load or available oxygen to support combustion, resulting in lower temps and lower pressure in the fire area.
What is the decay stage?
A fire in which the heat release rate and fire growth are regulated by the available oxygen within the space.
What is a ventilation-limited fire?
Another name for fire point.
What is flame point?
UEL
What is the Upper Explosive Limit?
The attributes of smoke that reflects the stage of burning of a fire and the material that is burning in the fire.
What is smoke color?