Questions Flashcards
(43 cards)
What do the letters in the abbreviation “I’M SAFE” stand for?
Illness of Injury. Medication. Stress. Alcohol or Drugs. Fatigue. Expertise.
Which items of bush firefighter personal protective clothing should be worn at all times when you are near a bush fire?
Boots.
Two Piece or Overalls.
Helmet.
A fire involves a live electrical motor. The most suitable extinguisher to use on this fire would be one with a band which colour code: red, blue, white or black?
Black - Carbon Dioxide.
- Red: Water: A.
- Brown: Wet Chemical: A, F.
- Blue: Foam: A, B.
- White: Dry Chem: A, B, C, (E).
: Dry Chem: B, G, (E), F.
- Black: CO2: A, B, (E), F.A grass fire is heading in an easterly direction when a southerly wind change occurs. Which part of the fire would become more hazardous for firefighters?
The north flank of the fire.
What is the “Dead Man Zone”?
The area of the edge of the fire that the fire will be traveling due to a sudden wind change.
What are two differences between heat exhaustion and heat stroke?
Heat exhaustion > Profuse sweating, dizziness and collapse.
Heat stroke > Cease sweating, unconsciousness.
What do the letters in the abbreviation “LACES” stand for?
Firefighter: Lookouts Awareness Communications Escape Routes Safety Refuge
Under what circumstances can you usually use the already burnt out area as a safety refuge at a bush fire?
During a Direct or a Parallel Attack you can use the burnt out area as a safety refuge.
All firefighting should be “anchored” from a suitable safety refuge as a “rule of thumb”, how large should a safety refuge be?
A safety refuge should be 4 times as deep as the likely flame height.
If only one safety refuge is available during an indirect attack on a bush fire, up to how far away is that refuge permitted to be?
If only one safety refuge is available then it should be no more that 100m away from the attack.
If multiple safety refuges are available they are permitted to be up to 250m away.
What are “fine fuels”?
Anything up to 6mm in thickness.
What is the “Step-Up” method of fire control line construction?
Step Up method used with a crew size of approx. 10-12 firefighters, they stand 3 metres apart and clear their individual section of the fire breakdown to mineral earth, raking the fuel away from the fire.
What is the “One-Lick” method of fire control line construction?
One- Lick method each crew member removes only a portion of the fuel by raking it away from the fire, as they move along the line. The first person removes the top layer and the last person makes sure the trail is cleared to mineral earth.
What should you do if you are caught in a fire bombing drop zone?
- Move away from the fire line or return to your truck.
- Do not run or panic.
- Watch for falling debris or branches.
- Place hand tools well clear of you.
- Secure your helmet with your arms (protecting head).
- Watch footing.
When using a drip torch, how are the lighting patterns used at a prescribed burn different from those used during actual fighting?
Fire fighting doing a back burn you’ll put in one line, as you’re in a hurry. However in a prescribed line you’ll put in lines, spots and strips.
A fire is burning through a forest of gum trees. It spreads into an open grassland area. All other things being equal, would the fire speed up or slow down.
The fire would speed up, as the fuel has become finer;
gum trees > grass.
All other things being equal, how does a change in wind speed affect how fast a fire is traveling and how fierce it is burning?
The change in wind speed with fasten the fire and make it burn fiercer, as there is more oxygen being supplied to the fire.
What are some examples of whether conditions that might indicate that the atmosphere is unstable?
Low humidity, high winds, high temperatures.
All other things being equal, the bush on the side of a hill facing which direction is more likely to be drier, and more likely to be involved in sever fire behaviour?
North / North-west side will be drier as it gets more sun.
At a bush fire involving gum trees what is the flame height up to which you would expect a direct attack to be safe and successful?
Flame heights of about 1.5 metres.
How is the people/property protection (defensive) strategy different from the various offensive fire fighting strategies?
Used if the fire is extreme, working from a safe refuge, protecting the people and assists from the fire instead of actually directly attacking the fire.
What is meant by a “simplex’ radio system?
This is the simplest type of radio system. Only one frequency and all stations operating on that channel transmit and receive on the same frequency. In a simplex system what you hear when you receive is the signal actually transmitted by the sender.
What would it mean if a unit at a fire on the Baxter’s Property changed to using the radio callsign “Baxter’s Control”?
The OIC of that unit has assumed control of the incident.
How are the following letters said phonetically when spelt out on the radio? - G, I, P, S and Z?
Golf. India. Papa. Sierra. Zulu.
