What does RECEO stand for?
- Rescue
- Exposures
- Containment
- Extinguishment
- Overhaul
What are the 4 stages of combustion?
- Incipient - No visible smoke or flame.
- Smouldering - Smoke visible.
- Flame - Actual fire now exists.
- Heat - Appreciable heat now exists and fire develops.
What is pyrolosyis?
The decomposition of a substance through application of heat.
What is the difference between heat and temperature?
Heat is a measure of energy, and temperature is an expression of the relative amount of energy that something has.
What is the expansion rate of water to steam at 100 degrees C?
1:1700
What is the Heat Release Rate usually measured in?
Watts.
1000 watts (W) = 1 kilowatt (kW)
1000 kilowatt = 1 Megawatt (MW)
What is the approximate HRR of a living or bedroom fire?
3-10 MW
In which ways can heat be transferred?
- Conduction
- Radiation
- Convection
- Direct burning
What are the 4 stages of a compartment fire?
- Developing stage
- Flashover stage (transitional)
- Fully developed stage
- Decay stage
Describe a flashover.
The sudden and sustained transition from a developing fire to a fully developed fire.
What are the signs of a flashover?
- fire is well ventilated
- painful radiant heat
- increased rate of pyrolysis
- turbulent neutral plane
- low neutral plane with flaming fingers
What are the 3 main types of extreme fire behavior (EFB)?
- Flashover
- Backdraught
- Fire gas ignition
Describe the BSAHF acronym.
These are factors to consider prior to entry:
- Building
- Smoke
- Air track
- Heat
- Flame
