What does "smothering" the fire mean?
Involves reducing the oxygen supply in an area (e.g. using fire blankets foam, etc.
What is our overriding priority on the fireground?
Firefighter Safety
Why is smoke and poor visibility a hazard on the fireground?
Impairs navigation, vehicle operation, crew coordination, and can hide other hazards
What degree of an uphill slope doubles the fire's rate of spread?
10 Degrees
What does BLEVE stand for?
Boiling Liquid Expanding Vapour Explosion
What is an overrun?
When the escape route is cut off and the fire is approaching your crews with no way out.
How does heat stress affect firefighter safety during prolonged bushfires?
Reduces alertness, slows reaction time, increases risk of injury or heat-related illness, and can compromise decision-making.
What is "spotting" in a bushfire?
Spotting occurs when burning embers are carried by the wind ahead of the fire front, starting new spot fires that can grow rapidly.
What is direct flame contact?
Fire spreads into buildings via direct flame contact through combustible material around buildings
What is convection?
Convection is the movement of heat through the circulation of hot fluids or gases.
What three radio's do we operate?
GRN, Fireground, UHF
What weather conditions contribute to extreme fire behaviour?
High temperatures, low humidity, and strong winds — this combination dries fuels and pushes fire quickly.
How is a backdraught caused?
A backdraft is caused by the sudden introduction of air into a fire that has depleted most of the available oxygen in a room or building.
What are the types of fire?
Ground Fire, Surface Fire and Crown Fire
What five hazards can you find in this photo?
1. Oncoming traffic 2. Downed power lines
3. Loose debris and possible fluids
4. Slippery, wet road
5. The vehicle's themselves
Why can a sudden wind change be more dangerous than steady strong winds?
It can rapidly shift the fire front, trapping crews and communities in unexpected directions.
In the following photo label the numbers 1-6 as to what is occurring
1. Column buckling 2. Displaced column
3. Cracks in wall 4. Bulging wall
5. Floors sagging and pulling out of wall
6. Dropped arch
What are the three components of the fire triangle?
Oxygen, Heat and Fuel
Who is the best captain in the NSW RFS?
Sladey
How can atmospheric instability lead to erratic fire runs?
Strong vertical air movement produces gusty winds and unpredictable fire behaviour.