Term
Fire is a chemical reaction |
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Definition
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Term
3 ways in which heat moves |
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Definition
- Convection
- Conduction
- Radiation
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Term
Basic principal of fire suppression |
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Definition
Remove one or more of the following:
fuel, heat, and/or oxygen |
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Term
3 factors to be considered when predicting anticipated fire behavior |
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Definition
- Topography
- Slope
- Aspect
- Elevation
- Canyons and saddles/ridges
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Term
Name some of the elements of the fire environment |
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Definition
- Fuel type
- Fuel moisture
- Fuel temperature
- Terrain
- Wind
- Stability of the air
- Fire behavior
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Term
Name 3 elements in the fire triangle and actions to remove them |
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Definition
- Oxygen: cover with dirt, retardant or foam
- Heat: removed by cooling with water, fam, retardant or dirt
- Fuel: removed by cutting a fireline between the fuel that is burning, and the unburned fuel
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Term
Elements of topography that effect fire behavior |
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Definition
Slope, aspect,elevations, canyons and ridges/saddles |
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Term
Two ways slope affects the spread of fire |
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Definition
- Preheats fuel
- Creates a draft effect
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Term
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Definition
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Term
How long can FF's work with minimal sleep |
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Definition
- 24-36 hours
- average 1 hour sleep for 2 hours of work
- 10% above the normal heart rate means fatigue/dehydration
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Term
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Definition
- Heat cramps (mildest)
- Heat exhaustion
- Dehydration exhaustion
- Weight loss and fatigue
- Heat stroke
- You lose 1-2 quarts of water an hour
- You should drink 12 quarts of water a day (1 every hour)
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Term
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Definition
Provide the potential for rapid rates of spread because fires are pushed through saddles faster during upslope fire runs |
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Term
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Definition
- If wide will have little effect on wind pattern
- Narrow canyon may have a wind different from that of the general wind
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Term
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Definition
May not only divide terrain, but mave have totally different wind conditions on each side |
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Term
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Definition
Are steep narrow draws or small canyons that draw fire up |
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Term
Why is slope one of the common denominators of fatal fire? |
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Definition
Fires that start at the bottom of a slope generally becomes larger because they have the greater amounts of fuel available to them and the momentum of burning up slope |
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Term
Conduction
convection
radiation |
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Definition
- Molecules move heat through a solid object
- heated air rises
- Heat radiates from a heat source
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Term
Why a high percentage of fatal fires in light fuels |
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Definition
Underestimation of fires in this type of fuels |
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Term
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Definition
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Term
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Definition
Fuel that will allow a surface fire to move into the crowns of trees |
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Term
Time lag (as it refers to dead fuel moisture) |
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Definition
Is the time it takes for the moisture content of fuels and the surrounding environment to equalize |
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Term
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Definition
- Moisture content in fuel material that is dead
- DFM is changed by the moisture content in the air
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Term
Fire behavior potential when relative humidity is less than 15% |
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Definition
- All sources of ignition dangerous
- Aggressive burning
- Spot fires occu often and spread rapidly
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Term
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Definition
- Amount of fuel available to burn
- Measured in tons per acre
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Term
Name some of the conditions affecting fuels to be considered in predicting fire behavior |
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Definition
Lack of fire in area will cause a buildup of fuels that will greatly increase the resistance to suppression efforts.
prolonged droughts making fuels more flammable |
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Term
Why is the volume or quantity of fuel in an area a factor to consider regarding fuel temperature |
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Definition
- The warmer the fuels, the less hea it takes to ignite
- The smaller the size and mass, the quicker heat buildup will occur and changes in moisture content will be faster
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Term
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Definition
- Topography
- Passage of weather front
- Fire
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Term
How do time and slope affect wind? |
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Definition
Normally there is less wind during the morning period from 0400-0700 hours |
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Term
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Definition
Occur when air spills over high elevations and moves downhill |
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Term
What are indicators of unstable air and how does it affect fire behavior |
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Definition
- Strong surface winds
- High fast moving clouds
- Approaching cold front
- Cumulonimbus development and battling (or opposing) winds or sudden calm
- The stronger the wind, the faster the spread of fire
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Term
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Definition
Sudden release of a column of air from a collapsing thundercloud |
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Term
how can an inversion layer affect fire behavior |
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Definition
Warmer layer of air is above cooler air.
may bring about erratic winds when fire develops and heat column goes through the inversion layer and is released
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Term
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Definition
Area being saturated with spot fires |
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Term
What factors contribute to crown fire |
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Definition
- Crowns must be rather dense and continuous
- There's has to be sufficient ground or ladder fuels to carry the fire into the tops of the trees
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Term
Indicators of extreme fire behavior |
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Definition
- Rapid increase in fire intensity
- High sustained ROS
- Well developed convection column
- Long distance spotting
- Fire whirlwinds or horizontal flame sheeting and sudden calming of the wind
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Term
If your wake up pulse is 10% or more above normal, what could it potentially mean |
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Definition
Fatigue, dehydration and even impending illness |
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Term
3 primary forms of heat stress |
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Definition
- Heat cramps: painful muscle cramps; treatment includes drinking lightly salted water, juice or athletic drinks
- Heat exhaustion: weakness, unstable gait, extreme fatigue, clammy skin, headache, nausea; treatment includes same as heat cramps, plus resting in shade
- Heat stroke: hot dry skin, body temp above 106, mental confusion, delirium and LOC; treatment includes cooling the body immediately and treating for shock
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Term
Symptoms of smoke and CO exposure? |
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Definition
Headache, fatigue and drowsiness |
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Term
Most important of safety clothing |
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Definition
- Boots
- Helmet
- Gloves
- Goggle
- Hood or shroud
- Fire shelter
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Term
If entrapment seems likely and there is doubt you can escape. Your most important action? |
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Definition
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Term
Ten standard wildland firefighting safety orders |
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Definition
- Fight fire aggressively but provide for safety first
- Initiate all actions based on current and expected fire behavior
- Recognize current weather conditions and obtain forecasts
- Ensure instructions are given and understood
- Obtain current information on fire status
- Remain in communication with members, supervisor and adjoining forces
- Determine safety zones and escape routes
- Estab lookouts in potentially hazardous situations
- Retain control at all time, stay alert, keep calm, think clearly and act decisively
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Term
|
Definition
- Lookouts
- Awareness
- Communications
- Escape routes
- Safety zones
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Term
18 situations that should raise a warning flag when you encounter them |
|
Definition
- Fire not scouted and sized up
- In country not seen in daylight
- Safety zones and escape routes not identified
- Unfamiliar with weather and local factors influencing fire behavior
- Uninformed on strategy, tactics, and hazards
- Instructions and assignments not clear
- No communication with crew or supvervisor
- Constructing line w/o an anchor point
- Building fireline downhill with fire below
- Attempting a frontal assault on fire
- Unburned fuel between you and the fire
- Cannot see main fire
- Not in contact with someone who can see
- On a hillside where rolling material can ignite fuel below
- Weather becoming hotter and drier
- Wind increases and or changes direction
- Getting frequent spot fires across fireline
- Terrain and fuels make escape to safety zones difficult
- Feel like taking a nap near fireline
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Term
Five common denominators on fatality or near fatality fires |
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Definition
- Relatively small fires or isolated sectors of large fires
- Fire innocent in appearance prior to flareup or blowups
- Light fuels
- Chimneys
- Low bypass by helicopters or air tankers
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Term
Describe safety rules regarding downed power lines |
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Definition
- Consider any line on ground as charged
- Flag area and warn and restrict access
- Notify your supervisor and any FF's
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Term
Handling and use of fireline hand tools |
|
Definition
- Carry tools at balance point and on downhill side
- Place guards on sharp tools when not in use
- Place tools where they will not be tripped over
- Don't use tools that have a loose head
- Walk and work at least 10 feet from other FF's
- Use tools only for their intended use
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Term
3 elements of a fire prevention program |
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Definition
- Education
- Engineering
- Enforcement
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Term
|
Definition
- Nonflammable roof and siding
- Covered attic vents
- Adquate clearance of flammable vegetation
- Smoke detectors
- adequate street widths
- clearly posted names
- Adequate water and extinguishers
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|
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Term
|
Definition
- Ignorance
- Machismo
- Apathy
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Term
|
Definition
- Temperature
- Relative humidity
- Wind-most influential
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Term
2 types of weather information |
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Definition
- Tactical-from the scene
- Strategic- from weather forecast
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Term
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Definition
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Term
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Definition
- Does not require shelter deployment
- An area used for escape in the event the line is outflanked or in case a spot fire causes fuels outside the control line to render the line unsafe
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Term
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Definition
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Term
Fire burns twice as fast at: |
|
Definition
30% slope and doubles again at 55% |
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Term
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Definition
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Term
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Definition
Dead tree waiting to fall |
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|
Term
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Definition
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Term
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Definition
- It's common to lose 1 to 2 quarts of sweat an hour
- Drink water before during and after shift
- Replacing 12 or more quarts a day
- Stay away from caffeine drinks
- Don't wait until you feel thirsty
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Term
Protective safety clothing |
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Definition
- Do not wear synthetic
- Wear only approved PPE or wear cotton material
- Wear a second layer
- Best policy is not to get on engine until you are properly dressed
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|
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Term
|
Definition
Lace up type with at least eight inch tops and heavy lugged soles |
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|
Term
|
Definition
Only time FFvshould not be wearing gloves is when he's feeling for hotspots |
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Term
|
Definition
- Last resort
- Reflects radiant heat
- Traps air
- Pick a site clear of vegetation, heavy fuels and flammable equipment
- Get on ground, get under shelter
- Prone protect airway face to the ground
- Never wet clothing or wet face or respirator protection
- Communicate with other FF's in shelters
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Term
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Definition
Never work below a bulldozer |
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Term
|
Definition
- Look for people or vehicles that don't fit
- Protect the point of origin
- Preserve evidence
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Term
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Definition
Never consider it as the final control line
fireline must be cut to mineral soil |
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Term
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Definition
- One volume of water will cool 300 volumes of burning fuel if applied properly
- Don't waste water
- Use a spray stream for most of your work
- Use a straight stream for reach
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Term
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Definition
- Chemical which when added to water in the right amount creates bubbles
- Bubbles stick to the fuel and gradually release moisture
- Bubbly water absorbs heat more efficiently than water
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Term
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Definition
- Attacks all 3 sides of the triangle
- Cool, smother, insulate fuels
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Term
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Definition
Chemicals that when added to water reduce the surface tension of water and increase penetration and spreading capabilities |
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Term
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Definition
2 1/2 times as wide as the expected flame length from the burning operation |
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Term
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Definition
Is where the fire started |
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Term
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Definition
Running edge of fire
not uncommon to have two or more heads |
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Term
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Definition
Occur when the fire crosses the fireline |
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Term
|
Definition
- Caused by shift of wind or change in topography
- Develop behind head
- May become 2nd head
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Term
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Definition
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Term
|
Definition
Sometimes called the heel or base of the fire |
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Term
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Definition
Patches of unburied fuel inside the fires perimeter |
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Term
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Definition
Deep indentations of unburned fuel along the fires perimeter |
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Term
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Definition
1 1/2 times the height of the fuel |
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Term
Fire has 3 routes across your fireline: |
|
Definition
- Convection
- Spotting
- Radiation
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|
|
Term
|
Definition
- Involves the use of fire to remove the unburned fuels between the fires edge and control line
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|
Term
|
Definition
- To control or turn a high intensity front that will outrun fireline if it can be slowed or stopped
- Main fire draws the backfire to it
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|
Term
|
Definition
- Used to protect structures
- Other high value sites
- Or to construct a safety zone
- Normally don't have an anchor point
- Used when no chance to effect perimeter control
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Term
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Definition
Technique to accomplish the strategy |
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Term
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Definition
Overall planto and actions to control the fire |
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Term
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Definition
Begins when you leave the station |
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Term
Thick black smoke with no spread to the base |
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Definition
Could be a structure or vehicle fire or tires. |
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Term
Smoke is black, but some white or light brown is showing away from the column |
|
Definition
Vehicle or structure fire that has moved to the grass |
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Term
Smoke column going straight up |
|
Definition
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|
Term
|
Definition
43,560 square feet or 209 feet on a side (hectare is 2.47 acres) |
|
|
Term
|
Definition
- Less than 4 ft: generally can be attacked at the head or flanks using hand tools.
- 4-8 feet: to intense for direct attack on the head with hand tools
- 8 to 11 feet: serious control problems; crowning, spotting, torching. Control efforts at head ineffective
- Over 11 feet: crowing, spotting and major fire runs are probable
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Term
Initial attack strategies |
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Definition
- Direct: work directly on fires edge
- Parallel: construct handline 6 to 50 feet from the fires edge
- Indirect: fireline is constructed some distance from the fire
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Term
|
Definition
If the flame length is over 4 feet, the fire is probably burning to intensely for a direct attack |
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Term
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Definition
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|
Term
4 deployment strategies for a direct attack |
|
Definition
- Tandem
- Pincer
- Flanking
- Envelopment
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|
Term
|
Definition
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Term
|
Definition
Simultaneously attacking both flanks |
|
|
Term
|
Definition
- Work both flanks of the fire
- Use most often to prevent fire from spreading laterally
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|
Term
|
Definition
- Must be well coordinated
- Involves suppression actions at several points on the fires perimeter
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Term
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Definition
Constructs line within 50 feet of the fire |
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Term
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Definition
Stopping the spread of hot burning points along the fires edge; ie fingers. |
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Term
|
Definition
Working along a partially dead line. Inspecting the line for hotspots, improving existing lines or cutting new lines |
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Term
|
Definition
Critical part of the mission. All material near the fireline must be extinguished |
|
|
Term
Snags: time and one half rule |
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Definition
Fall any snags inside and outside the line, to a distance of 1 1/2 times their height |
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Term
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Definition
3-7 with 5 being established as an optimum |
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Term
|
Definition
- Overall incident objectives and strategies are met
- Ensure that there is one operational plan and integrated tactical ops are conducted
- IAP is implemented under the direction of one individual-the OPS section Chief
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Term
|
Definition
- Common terminology
- Modular organization: Fits any size incident
- Integratecommunications
- Unified command
- Consolidated action plan
- Span of control
- Designated incident facilities
- grouping of resources
- Resource management
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Term
|
Definition
- Command
- Operations
- Logistics
- Planning
- Finance/administration
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Term
|
Definition
Is responsible for the overall management of the incident |
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Term
When a fire involves more than one agency: |
|
Definition
Unified command is established |
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Term
|
Definition
Includes
- Safety
- Information (PIO)
- Liason
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Term
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Definition
|
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Term
|
Definition
Any combination of resources grouped to accomplish a specific task
task force leader is assigned |
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Term
|
Definition
Set number and type of resources
strike team leader is assigned |
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Term
|
Definition
- Accurate status of all resources is critical
- Three status conditions;
- Assigned
- Available
- Out of service
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|
Term
|
Definition
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Term
|
Definition
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Term
|
Definition
Grouping of divisions and/or groups |
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Term
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Definition
Where the fire is put out |
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Term
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Definition
Provide the materials and services needed to keep the machine running; food and fuel, supply, ground support, facilities, communications, medical |
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Term
|
Definition
- Responsible for forecasting weather
- Preparing the IAP
- 4 units:
- Resources, situation, documentation, demobilization
- Planning tracks the fire and resources
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Term
|
Definition
- Tracks costs
- Time
- Procurement
- Compensation/claims
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Term
|
Definition
- Developed by planning section
- Outlines who is to do what, when and with whom
- Division assignment
- Medical plan
- Radio communications
- Org assignment list
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|
Term
MACS
multi-agency coordination system |
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Definition
Method for strategic coordination between several jurisdictions |
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Term
|
Definition
Line of site mode normally used in tactical operations |
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Term
|
Definition
Southern get more sun than northern |
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Term
|
Definition
Calculate temp, dew point, and dryness at 2 levels inthe atmosphere |
|
|
Term
|
Definition
Causes moving objects to be deflected in a clockwise direction |
|
|
Term
|
Definition
Rain that doesn't reach the ground |
|
|
Term
|
Definition
- slope is an aid to fire spread, but an obstacle to firefighters and fire equipment
- slope is most commonly expressed as a percent; the number of units of vertical distance in every hundred units of horizontal distance
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|
|
Term
|
Definition
- Map reading skills are important
- map is a graphic representationof features on the ground
- topographic map is much more useful to the wildland F.F., than a road map
- the vertical dimension being indicated by contour lines (a line on a map representing an imaginary line on the ground, all points of which all have the same elevation
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Term
Hachures (Depression contours) |
|
Definition
Sometimes used with contours to indicate a steep cliff on map |
|
|
Term
|
Definition
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|
Term
Sharp V's in contour lines |
|
Definition
|
|
Term
Contour lines that converge into one line |
|
Definition
|
|
Term
Contour lines in the shape of U's with the open end pointing toward high ground |
|
Definition
|
|
Term
Contour lines making closed loops with ticks |
|
Definition
indicate a depression
ticks are always on the downhill side of the contour |
|
|
Term
Places a fire can enter into a structure |
|
Definition
- unscreened vents
- windows
- holes in roofing material
- open doors and breezeways
- crawl spaces
- openings in mobile home skirting
- under roof tiles
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|
|
Term
class A foam for structures |
|
Definition
- can be applied to a roof or wall of a structure as protection from fire brands or radiant heat
- in most situations; foam blanket may last 15-30 min
|
|
|
Term
|
Definition
- control lines must be in place before you start firing
- if you can, burn downhill and against the wind
- knock down flareups that threaten the line
- watch for hot spots
- if time prepare the structure, improve the defensible space.
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|
|
Term
four firefighting tactical situations |
|
Definition
- spotting
- full control
- partial control
- no control
|
|
|
Term
|
Definition
if you find a roof fire that does not involve more than 1/4 of the roof, you may be able to save the structure |
|
|
Term
|
Definition
is an area around a structure that you will defend |
|
|
Term
|
Definition
- Look at the big picture
- consider what you can do with firefighters and water at hand
As rule of thumb; assign one engine co.per structure in the structure threat zone
if conditions allow, take the offense, but keep safety first in mind |
|
|
Term
|
Definition
is one key to being successful during extreme fire conditions, and structure protection |
|
|
Term
|
Definition
- if you are within 50 feet of the dozer, you are in the danger zone
- approach dozer only when told to, and only if the operator sees you
- dont approach if its moving and operator cant see you
- be extremely cautious if working belo the dozer-rocks, or other things could be dislodged and roll
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|
|
Term
15 person crew production rate |
|
Definition
Should be able to construct a 3 foit wide fireline around a one acre grass fire |
|
|
Term
|
Definition
- Always tie to an anchor point.
- Drop retardant into the wind
- Use drops to reinforce line
- Make sure airtankers are needed and conditions are safe
|
|
|
Term
The most effective suppression operation is: |
|
Definition
one that is well coordinated
All forces working together under one plan |
|
|
Term
|
Definition
- Use clock orientation
- lead planes are used to provide a higher degree of safety for airtankers
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|
|
Term
|
Definition
- If a windsock is not available, use flagging tape
- Approach and depart on the downslope side
- Approach and depart in the pilots field of vision
- Stay away from tail rotor
- Downdrafts from low flying Helo can cause erratic fire behavior
- Pick a location free from power lines
|
|
|
Term
|
Definition
- Best for use on wildland fire. It is much more versatile
- Can provide a protective cone
- Straight streams have greater reach
|
|
|
Term
|
Definition
- Allows firefighting resources to leap-frog
- Involves two or more engines or other firefighting apparatus
- Lead engine can move faster knowing the tandem engine will pickup any hotspots
|
|
|
Term
|
Definition
- The ratio of the amount of moisture in a given volume of space to the amount that volume would contain if it were saturated
- The ratio of the actual vapor pressure to the saturated VP
|
|
|
Term
|
Definition
- The relative activity of a fire in extending its size.
- It is expressed as rate of increase of the total perimeter of the fire
|
|
|
Term
|
Definition
Where the fire crosses the fireline |
|
|
Term
|
Definition
- Constructing fireline next to the fire.
- usually the safest method of attacking a fire of low or moderate intensity in light fuels
|
|
|
Term
Parallel method of attack |
|
Definition
- Method of suppression in which fireline is constructed approx parallel to
- Unburned strip between the fires edge and the fireline is burned out as the fireline is being constructed
|
|
|
Term
|
Definition
- Not a one time activity
- Is the development of a mental picture of what is happening, what the fire is doing or will do
- Continuous process that is only concluded when fire is under control
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|
|
Term
What are the three elements that make up the fire triangle? |
|
Definition
|
|
Term
What are the three ways heat is transfered? |
|
Definition
Conduction: = moving heat
Convection: = heat rising
Radiation: = heat through a window |
|
|
Term
What are two way primary ways a wildland fire spreads? |
|
Definition
|
|
Term
Slope affects the spread of fire by__________ the fuels and by creating a __________. |
|
Definition
Slope affects the spread of fire by pre-heating the fuels and by creating a draft. |
|
|
Term
Ridges may not only divide the terrain but have totally different___________ conditions on each side. |
|
Definition
|
|
Term
A fire burning on level ground will spread twice as fast when it reaches_____% slope and double again as the slope reaches______% |
|
Definition
|
|
Term
Light or fast -burning fuels are also refered to as________ fuels or ________ fuels. |
|
Definition
Light or fast -burning fuels are also refered to as fine fuels or flash fuels. |
|
|
Term
While fire in light fuels are usually easier to suppress, they can move extremely________ and with great________. |
|
Definition
While fire in light fuels are usually easier to suppress, they can move extremely fast and with great intensity. |
|
|
Term
A very high percetage of fire fatalities is the result of underestimating a fire in_______ fuels. |
|
Definition
A very high percetage of fire fatalities is the result of underestimating a fire in light fuels. |
|
|
Term
Spot fire can start more easily in_____ fuels than in __________ fuels. |
|
Definition
Spot fire can start more easily in small fuels than in fine or flash fuels. |
|
|
Term
The time lag is the time it takes for the ________ content of fuels and the surrounding __________ to equalize |
|
Definition
The time lag is the time it takes for the air content of fuels and the surrounding air to equalize |
|
|
Term
Fires are commonly started by: |
|
Definition
lightning, debris burning, equipment exhaust, cigarettes, and arson |
|
|
Term
|
Definition
conduction, convection, and radiation |
|
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Term
fire behavior is determined by 3 things: |
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Definition
type of fuel, weather, and topography |
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Term
fire environment includes: |
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Definition
fuel moisture & temperature, terrain, wind, stability of air, and fire behavior |
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Term
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Definition
Pre-heats, creates a draft effect, runs faster uphill than down, and one common denominator of fatal fires |
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Term
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Definition
1) South and west facing slopes will normally burn hotter in the afternoon 2) Aspect is the direction the slope faces |
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Term
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Definition
1) Influences how air moves from warmer valeys to cooler ridges 2) affects the position of warm/cool air masses 3) affects the length of the fire season (the lower the elevation, the longer the season |
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Term
What are the seven elements included in the fire environment? |
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Definition
Air Stability Fire Behavior Fuel Type Fuel Moisture Fuel Temperature Terrain Wind |
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Term
What weather factors should be a concern to firefighters? |
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Definition
Wind Speed and Direction Moisture Cloud Cover Air Stability Temperature |
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Term
Three reasons stronger wind increases the rate of spread? |
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Definition
1. Additional supply of air 2. Flattens the flames to preheat the fuel load 3. Causes spot fires |
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Term
What is the difference between relative humidity in the day and in the night? |
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Definition
RH lower during the day
RH higher during the night |
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Term
Visible indicators of unstable air. |
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Definition
Vertical Clouds Upward and downward current Good visibility Dust Devils Warmer at lower elevations |
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Term
What is a downburst/microburst?
What are some safety concerns when a downburst is occuring? |
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Definition
Sudden downward release of cool air from a collapsing thundercloud.
Rapid increase in fire behavior. Spreads fire in all directions. |
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Term
What are the elements included in topography? |
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Definition
Slope Position of fire on slope Aspect Elevation Configuration of land |
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Term
What ways does slope affect fire spread? |
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Definition
Allows flame to better preheat fuels above fire. Creates draft effect Causes burning material to roll downhill |
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Term
At what percent will the rate of spread of an uphill fire double? |
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Definition
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Term
Which aspects cause the firefighter the most concern. |
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Definition
South and West aspects.
S and W exposed to more thermal heating by the sun, causing higher temperature and lower humidity. |
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Term
What do you need to observe when working in narrow canyons? |
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Definition
Wind eddies
Radiant or convective spotting
Rate of spread can change dramatically when fire backs down a canyon side and up the other side. |
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Term
Part of ridgeline that provides the potential for rapid rates of spread because fires are channeled through this area faster during upslope fire runs? |
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Definition
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Term
Two categories of wildland fuels?
Man made type of fuel |
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Definition
Light or fast burning
Homes, barns, sheds, buildings |
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Term
What are terms used to classify fuels as to their position on the ground or in the air? |
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Definition
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Term
Heavy Fuels
Logs Stumps Branchwood Logging Slash/debris Deep Duff |
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Definition
Light Dry Grass Dead Leaves Tree Needles Brush Small Trees |
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Term
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Definition
Harder to ignite Burn slower Burn extremely hot Harder to suppress Dangerous |
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Term
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Definition
Easier to ignite Burn Faster Burn Hot Easier to suppress Very Dangerous |
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Term
Two types dead fuel moisture |
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Definition
Dead Fuel Moisture
Live Fuel Moisture |
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Term
Area ignition safety concerns |
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Definition
1. Hundreds of acres can be consumed in minutes 2. Escape routes and safety zones can be cut off 3. Firefighter's positions can be overrun |
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Term
Indicators for extreme fire behavior |
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Definition
1. Rapid increase in fire's intensity 2. High, sustained rate of fire spread 3. Well developed convection column 4. Long distance spotting 5. Fire whirlwinds or horizontal flames 6. Sudden calming of wind |
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Term
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Definition
1. aerobic 2. muscular
a. More tolerant of heat b. Acclimate faster c. Work with lower heart rate |
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Term
Ration of hours of work to sleep on the fireline. |
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Definition
2 hours of work to 1 hour rest or sleep |
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Term
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Definition
1. Painful Muscle Cramps 2. Weakness 3. Headache 4. Nausea 5. Wet clammy Skin |
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Term
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Definition
Headaches Fatigue Dropwsiness |
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Term
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Definition
Fight fire agressively, provide safety Initiate all actions based on fire behavio Recognize current weather conditions Ensure instructions are givenand understoo
Obtain current information on fire status Remain in communication with crew, supv Determine safety zones and escape routes Establish lookouts Remain in control at all times Stay alert, keep calm, think clearly, act decisively |
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Term
Firefighter fatalities five common denominators |
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Definition
1. Most incidents on smaller fires or isolated areas of larger fires 2. Most fires are innocent in appearance before flameup or blowup 3. Flare ups generally occur in deceptively light fuels 4. Fires run uphill fast in chimneys gulleys, and steep slopes. 5. Some suppression tools cause wind that may adversely affect fire behavior. |
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Term
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Definition
Lookout Awareness Communication Escape Routes Safety Zones |
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Term
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Definition
Snags Rolling Rocks Hand Tools Retardant Drops Snakes and Ticks Power Lines |
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Term
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Definition
Dead Tree waiting to fall
Dead limb hanging loose in a tree |
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Term
Principles of fireline placement |
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Definition
Anchor fireline Utilize existing barriers Go around heavy fuels Include spot fires in control lines Keep lines as straight as possible locate line close to flame front Construct line at base of a hill Underslung line is hard to construct Plan for fire spread. |
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Term
General for width of most firelines |
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Definition
1 1/2 times wide as fuel is tall |
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Term
Ways fires can cross fireline |
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Definition
Radiant and Convective heat Cross line not cut to mineral soil Burning material may roll downhill Burning snags may fall and cross line May pass under fireline through roots |
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Term
Six factors that determine the width of the fireline |
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Definition
Fuel Topography Weather Parts of fire to be controlled Size of fire being controlled Possibility of cooling |
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Term
Guidelines for downhill fireline construction. |
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Definition
Do not construct over the fire area Fireline should not be adjacent to chimneys or chutes. Establish reliable communications Safety zones should be quickly reachable Anchor fireline at the top Line firing should be done as the line is constructed Review 18 situations |
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Term
How many volumes of burning fuel will one volume of water cool? |
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Definition
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Term
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Definition
Effective because it attacks all three sides of a fire. It cools, smothers, and insulates. |
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Term
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Definition
Chemicals that reduce the surface tension of water. Increased penetration, and spreading capability. |
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Term
Objectives of burning out |
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Definition
To remove unburned fuel between the fires edge and control line. Strengthen, widen and secure control lines Reduce required holding force Reduce mop up and the need to cold trail Provide safety zones and escape routes |
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Term
General rules for burning operations |
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Definition
Always have an anchor point, Fire from the top down in steep terrain. Fire from bottom of wide canyons, roads or benches. Adjust to fit changing conditions |
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Term
3 types of fireing techniques |
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Definition
Spot Firing-Setting of spot fires rather rather than strips Ring- Setting around a structure or other high value area Strip- One or more strips parallel to control line |
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Term
Strategy Definition
Tactic Definition |
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Definition
Strategy is what
Tactic is how |
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Term
Wildland size up elements |
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Definition
Fire behavior and rate of spread Size of the fire Weather conditions, topography, fuell type Structures or high value areas threatened Natural or existing barriers Special safety hazards What is fire's potential |
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Term
Wildland size up elements |
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Definition
Fire behavior and rate of spread Size of the fire Weather conditions, topography, fuell type Structures or high value areas threatened Natural or existing barriers Special safety hazards What is fire's potential |
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Term
Seven Priorities of wildland fire suppression |
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Definition
Life Hazard Property Values Resource Values Keep fire from heavier, dangerous fuels Keep fire on side of a canyon Keep fire as small as possible All suppression activities contribute to final control of fire |
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Term
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Definition
less than 4 ft. = Handline 4 - 8 ft. = Bulldozers, engines, retardant 8 - 11 ft. = No control at head of fire |
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Term
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Definition
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Term
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Definition
Attacking the fire at the point of most active spread |
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Term
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Definition
Firefighters are working along partially dead line. Improving existing or cutting new line when necessary. |
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Term
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Definition
Start work on each portion of line ASAP. Most dangerous first Secure/extinguish burning material. Deal with special hazards Widen and clean fireline as necessary Check for spot fires |
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Term
Components that make ICS work. |
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Definition
Common Terminology Modular Organization Integrated Communications Unified Command Structure Consolidated Action Plan Span of Control Designated Incident Facilities Firefighting Resources Resource Management |
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Term
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Definition
Defn: A direct attack method where the engine drives along the edge of a fire with a firefighter on hoseline extinguishing fire. |
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Term
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Definition
Used: When fuel are light When topography allows When engine has pump and roll capability |
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Term
Four Ways to Use Mobile Attack |
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Definition
Flanking Attack Tandem Attack Pincer Attack Envelopment Attack |
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Term
Key points of flanking attack |
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Definition
Pick Anchor Point Start Extinguishing Fire Edge Move as fast as fire is extinguished Continue along flank until fire extinguished |
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Term
Key Points of Tandem Attack |
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Definition
Lead Engine knocks heat out of fire Second Engine follows, picking up hot spots |
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Term
Key Points of Pincer Attack |
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Definition
Both Flanks attacked at same time Can be from head or heel of fire Engine starts at anchor Attack moves in a coordinated effort |
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Term
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Definition
Fire's perimeter is attacked at several points at same time. Critical areas attacked first Attack must be well coordinated |
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Term
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Definition
Direct Attack Hotspotting Cutting Fire line Water Supply Structure Protection Medical Aid |
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Term
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Definition
A. Cut a lot of line
B. Do a lot of damage |
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Term
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Definition
Hose Lays Firing Operations Structure Protection Mopping Up Cleaning Up Logistical Support |
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Term
General porduction rates for fireline construction |
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Definition
60 ft. line/hour grass 30 ft. medium brush 20 ft. heavy brush 15 ft. very heavy brush |
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Term
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Definition
Most Effective on Initial Attack fires Need follow up by ground forces Expensive May be diverted to new fires |
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Term
Six ways to use helicopters |
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Definition
Water, retardant, foam drops Move personnel Transport Supplies Start backfires Evacuate personnel Provide reconnaissance |
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Term
Wildland/Urban Interface conditions. |
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Definition
Structures already involved Fire is driving the incident No time to plan an attack Water is limited Numerous non-fire problems |
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Term
Wildland/Urban Interface Structure protection |
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Definition
1. Best way is offensive
Other = Defensive = Combination |
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Term
Three Categories of Structures |
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Definition
Those Threatened Those hopeless or too dangerous Those that will be threatened and have potential of being saved. |
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Term
Wildland/Urban Interface engine positioning |
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Definition
Note landmarks and hazards Potential Safety Zones Back In Do not block traffic Do not park under power lines Survey area for hazards |
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Term
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Definition
Back In Fill Tank Leave Running Crew Protection Line Ladders Structure Protection Clear Roof Move woodpiles Close Windows |
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Term
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Definition
Class A = 1/4 acre or less Class B = 1/4 acre but less than 100 acres Class C = 10 acres or more less than 100 Class D = 100 acres or more less than 300 Class E = 300 acres or more |
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Term
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Definition
To check the fire's spread under prevailing conditions
To complete firelines around a fire and cool down hot spots |
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Term
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Definition
Left Flank Right Flank Fireline Origin Head Island Spot Fire Heel or Base Finger Pocket |
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Term
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Definition
Interface Condition-Clear line of demarcation between structures and wildland
Intermix-Structures are scattered throughout the wildland
Occluded-structures abut an island of wildlan fuels
Rural |
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Term
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Definition
Lookouts Awareness Communications Escape Routes Safety Zones |
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Term
Laces Aspects of Awareness |
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Definition
Fire weather Fire behavior Understanding Assignment Activities around you Terrain |
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Term
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Definition
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Term
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Definition
Scouted Walkable Timed Marked Away from fire's head |
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Term
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Definition
Void of Flammable Fuels Reachable Large Enough Away from Snags |
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Term
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Definition
Occurs when rainfall does not reach the ground because the air below is dry and moisture is absorbed. VIRGA is an indicator that a thunderstorm has matured and downdrafts may result. |
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Term
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Definition
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Term
5 gallon backpack weighs? |
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Definition
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Term
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Definition
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Term
3 types of portable pumps |
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Definition
- On land
- submergible
- Floating
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Term
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Definition
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Term
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Definition
- Air tanker most effective during initial attack
- If winds greater than 20 mph, no air tanker
- If turnaround greater than 30 min, get more AT
- Best drop is 150 ft above fuel
- Retardant weighs over 9lbs per gallon
- Retardant should fall as a mist or rain
- Retardants are most effective if applied ahead of the fire
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