Shared Flashcard Set

Details

OFD wildland
Captains test
263
Other
Professional
09/18/2014

Additional Other Flashcards

 


 

Cards

Term
Fire is a chemical reaction
Definition
Rapid oxidation
Term
3 ways in which heat moves
Definition
  1. Convection
  2. Conduction
  3. Radiation
Term
Basic principal of fire suppression
Definition

Remove one or more of the following:

fuel, heat, and/or oxygen

Term
3 factors to be considered when predicting anticipated fire behavior
Definition
  1. Topography
  2. Slope
  3. Aspect
  4. Elevation
  5. Canyons and saddles/ridges
Term
Name some of the elements of the fire environment
Definition
  • Fuel type
  • Fuel moisture
  • Fuel temperature
  • Terrain
  • Wind
  • Stability of the air
  • Fire behavior
Term
Name 3 elements in the fire triangle and actions to remove them
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
Term
Elements of topography that effect fire behavior
Definition
Slope, aspect,elevations, canyons and ridges/saddles
Term
Two ways slope affects the spread of fire
Definition
  1. Preheats fuel
  2. Creates a draft effect
Term
2 fitness aspects:
Definition
  1. Aerobic
  2. Muscular
Term
How long can FF's work with minimal sleep
Definition
  • 24-36 hours
  • average 1 hour sleep for 2 hours of work 
  • 10% above the normal heart rate means fatigue/dehydration

 

Term
3 forms heat stress
Definition
  1. Heat cramps (mildest)
  2. Heat exhaustion
  3. Dehydration exhaustion
  4. Weight loss and fatigue
  5. Heat stroke
  6. You lose 1-2 quarts of water an hour
  7. You should drink 12 quarts of water a day (1 every hour)
Term
Saddles
Definition
Provide the potential for rapid rates of spread because fires are pushed through saddles faster during upslope fire runs
Term
Canyons
Definition
  • If wide will have little effect on wind pattern
  • Narrow canyon may have a wind different from that of the general wind 
Term
Ridges
Definition
May not only divide terrain, but mave have totally different wind conditions on each side
Term
Chimneys
Definition
Are steep narrow draws or small canyons that draw fire up
Term
Why is slope one of the common denominators of fatal fire?
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
Term

Conduction

convection

radiation

Definition
  1. Molecules move heat through a solid object
  2. heated air rises
  3. Heat radiates from a heat source
Term
Why a high percentage of fatal fires in light fuels
Definition
Underestimation of fires in this type of fuels
Term
2 names for light fuels
Definition
Fine or flashy fuels
Term
Ladder fuels
Definition
Fuel that will allow a surface fire to move into the crowns of trees
Term
Time lag (as it refers to dead fuel moisture)
Definition
Is the time it takes for the moisture content of fuels and the surrounding environment to equalize
Term
Dead fuel moisture
Definition
  • Moisture content in fuel material that is dead
  • DFM is changed by the moisture content in the air
Term
Fire behavior potential when relative humidity is less than 15%
Definition
  • All sources of ignition dangerous
  • Aggressive burning
  • Spot fires occu often and spread rapidly
Term
Fuel loading
Definition
  • Amount of fuel available to burn
  • Measured in tons per acre
Term
Name some of the conditions affecting fuels to be considered in predicting fire behavior
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 

Term
Why is the volume or quantity of fuel in an area a factor to consider regarding fuel temperature 
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
Term
What factors affect wind
Definition
  • Topography
  • Passage of weather front
  • Fire
Term
How do time and slope affect wind?
Definition
Normally there is less wind during the morning period from 0400-0700 hours
Term
Foehn or gravity winds
Definition
Occur when air spills over high elevations and moves downhill
Term
What are indicators of unstable air and how does it affect fire behavior
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
Term
Downburst
Definition
Sudden release of a column of air from a collapsing thundercloud
Term
how can an inversion layer affect fire behavior
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

 

Term
Area ignition
Definition
Area being saturated with spot fires
Term
What factors contribute to crown fire
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
Term
Indicators of extreme fire behavior
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
Term
If your wake up pulse is 10% or more above normal, what could it potentially mean
Definition
Fatigue, dehydration and even impending illness
Term
3 primary forms of heat stress
Definition
  1. Heat cramps: painful muscle cramps; treatment includes drinking lightly salted water, juice or athletic drinks
  2. Heat exhaustion: weakness, unstable gait, extreme fatigue, clammy skin, headache, nausea; treatment includes same as heat cramps, plus resting in shade
  3. Heat stroke: hot dry skin, body temp above 106, mental confusion, delirium and LOC; treatment includes cooling the body immediately and treating for shock
Term
Symptoms of smoke and CO exposure?
Definition
Headache, fatigue and drowsiness
Term
Most important of safety clothing
Definition
  • Boots
  • Helmet
  • Gloves
  • Goggle
  • Hood or shroud
  • Fire shelter
Term
If entrapment seems likely and there is doubt you can escape. Your most important action?
Definition
Deployment of shelter
Term
Ten standard wildland firefighting safety orders 
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 
Term
LACES
Definition
  • Lookouts
  • Awareness
  • Communications
  • Escape routes 
  • Safety zones
Term
18 situations that should raise a warning flag when you encounter them
Definition
  1. Fire not scouted and sized up
  2. In country not seen in daylight
  3. Safety zones and escape routes not identified 
  4. Unfamiliar with weather and local factors influencing fire behavior
  5. Uninformed on strategy, tactics, and hazards
  6. Instructions and assignments not clear
  7. No communication with crew or supvervisor 
  8. Constructing line w/o an anchor point
  9. Building fireline downhill with fire below
  10. Attempting a frontal assault on fire
  11. Unburned fuel between you and the fire
  12. Cannot see main fire
  13. Not in contact with someone who can see
  14. On a hillside where rolling material can ignite fuel below
  15. Weather becoming hotter and drier
  16. Wind increases and or changes direction
  17. Getting frequent spot fires across fireline
  18. Terrain and fuels make escape to safety zones difficult
  19. Feel like taking a nap near fireline
Term
Five common denominators on fatality or near fatality fires
Definition
  1. Relatively small fires or isolated sectors of large fires
  2. Fire innocent in appearance prior to flareup or blowups
  3. Light fuels
  4. Chimneys
  5. Low bypass by helicopters or air tankers
Term
Describe safety rules regarding downed power lines
Definition
  • Consider any line on ground as charged
  • Flag area and warn and restrict access
  • Notify your supervisor and any FF's
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
Term
3 elements of a fire prevention program
Definition
  • Education
  • Engineering
  • Enforcement 
Term
Fire safe 
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
Term
3 common rule violations
Definition
  1. Ignorance
  2. Machismo
  3. Apathy
Term
3 weather factors
Definition
  1. Temperature
  2. Relative humidity
  3. Wind-most influential
Term
2 types of weather information
Definition
  • Tactical-from the scene
  • Strategic- from weather forecast 
Term
Fire is hotter
Definition
From 1000 top 1700 hours
Term
Safety zone
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
Term
Safety route
Definition
Should not go uphill
Term
Fire burns twice as fast at:
Definition
30% slope and doubles again at 55%
Term
Widow maker
Definition
Dead limb in tree
Term
Snag
Definition
Dead tree waiting to fall
Term
Heat stroke
Definition
Is a medical emergency
Term
Fluid replacement 
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
Term
Protective safety clothing
Definition
  1. Do not wear synthetic
  2. Wear only approved PPE or wear cotton material
  3. Wear a second layer
  4. Best policy is not to get on engine until you are properly dressed
Term
Boots
Definition
Lace up type with at least eight inch tops and heavy lugged soles
Term
Gloves
Definition
Only time FFvshould not be wearing gloves is when he's feeling for hotspots
Term
Fire shelter
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
Term
Bulldozer
Definition
Never work below a bulldozer
Term
Fire investigation
Definition
  • Look for people or vehicles that don't fit
  • Protect the point of origin
  • Preserve evidence
Term
Wet line
Definition

Never consider it as the final control line

fireline must be cut to mineral soil

Term
Water
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
Term
Class A foam
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
Term
Foam
Definition
  • Attacks all 3 sides of the triangle
  • Cool, smother, insulate fuels
Term
Wetting agent
Definition
Chemicals that when added to water reduce the surface tension of water and increase penetration and spreading capabilities
Term
Apply foam
Definition
2 1/2 times as wide as the expected flame length from the burning operation
Term
Origin
Definition
Is where the fire started
Term
Head
Definition

Running edge of fire

not uncommon to have two or more heads

Term
Slopovers
Definition
Occur when the fire crosses the fireline
Term
Fingers
Definition
  • Caused by shift of wind or change in topography
  • Develop behind head
  • May become 2nd head
Term
Flanks
Definition
Sides of the fire
Term
Rear of fire
Definition
Sometimes called the heel or base of the fire
Term
Islands
Definition
Patches of unburied fuel inside the fires perimeter
Term
Pockets
Definition
Deep indentations of unburned fuel along the fires perimeter
Term
Fireline width
Definition
1 1/2 times the height of the fuel
Term
Fire has 3 routes across your fireline:
Definition
  • Convection
  • Spotting
  • Radiation
Term
Burning out
Definition
  • Involves the use of fire to remove the unburned fuels between the fires edge and control line
Term
Backfiring
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
Term
Ring firing
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
Term
Tactic
Definition
Technique to accomplish the strategy
Term
Strategy 
Definition
Overall planto and actions to control the fire
Term
Sizeup
Definition
Begins when you leave the station
Term
Thick black smoke with no spread to the base
Definition
Could be a structure or vehicle fire or tires.
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
Term
Smoke column going straight up
Definition
Little or no wind
Term
Acre
Definition
43,560 square feet or 209 feet on a side (hectare is 2.47 acres)
Term
Flame length
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
Term
Initial attack strategies
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 
Term
4 feet flame length
Definition
If the flame length is over 4 feet, the fire is probably burning to intensely for a direct attack
Term
DirectDirect attack
Definition
Is usually the safest
Term
4 deployment strategies for a direct attack
Definition
  1. Tandem
  2. Pincer
  3. Flanking
  4. Envelopment
Term
Tandem
Definition
forces attack one flank
Term
Pincer
Definition
Simultaneously attacking both flanks
Term
Flanking
Definition
  • Work both flanks of the fire
  • Use most often to prevent fire from spreading laterally
Term
Envelopment
Definition
  • Must be well coordinated 
  • Involves suppression actions at several points on the fires perimeter
Term
Parallel attack
Definition
Constructs line within 50 feet of the fire
Term
Hotspotting
Definition
Stopping the spread of hot burning points along the fires edge; ie fingers.
Term
Cold trailing
Definition
Working along a partially dead line. Inspecting the line for hotspots, improving existing lines or cutting new lines
Term
Mop up
Definition
Critical part of the mission. All material near the fireline must be extinguished
Term
Snags: time and one half rule
Definition
Fall any snags inside and outside the line, to a distance  of 1 1/2 times their height
Term
Span of control
Definition
3-7 with 5 being established as an optimum
Term
Unified command
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
Term
Components of ICS
Definition
  1. Common terminology
  2. Modular organization: Fits any size incident
  3. Integratecommunications 
  4. Unified command
  5. Consolidated action plan
  6. Span of control
  7. Designated incident facilities
  8.  grouping of resources
  9. Resource management 
Term
Ics org.
Definition
  • Command
  • Operations
  • Logistics
  • Planning
  • Finance/administration 
Term
Command
Definition
Is responsible for the overall management of the incident
Term
When a fire involves more than one agency:
Definition
Unified command is established
Term
Command
Definition
Includes
  • Safety
  • Information (PIO)
  • Liason
Term
Staging:
Definition
Under operations
Term
Task force
Definition

Any combination of resources grouped to accomplish a specific task

task force leader is assigned

Term
strike team
Definition

Set number and type of resources

strike team leader is assigned

Term
Resource management
Definition
  • Accurate status of all resources is critical
  • Three status conditions;
  1. Assigned
  2. Available
  3. Out of service 
Term
Divisions
Definition
Assigned geographically
Term
Groups 
Definition
Are functional
Term
Branches
Definition
Grouping of divisions and/or groups
Term
Operations
Definition
Where the fire is put out
Term
Logistics
Definition
Provide the materials and services needed to keep the machine running; food and fuel, supply, ground support, facilities, communications, medical
Term
Planning
Definition
  • Responsible for forecasting weather
  • Preparing the IAP
  • 4 units:
  • Resources, situation, documentation, demobilization 
  • Planning tracks the fire and resources
Term
Finance section
Definition
  • Tracks costs
  • Time
  • Procurement
  • Compensation/claims
Term
IAP
Definition
  • Developed by planning section
  • Outlines who is to do what, when and with whom
  • Division assignment
  • Medical plan
  • Radio communications
  • Org assignment list
Term

MACS

multi-agency coordination system

Definition
Method for strategic  coordination between several jurisdictions
Term
Simplex radio system
Definition
Line of site mode normally used in tactical operations
Term
Aspect
Definition
Southern get more sun than northern
Term
Haines index
Definition
Calculate temp, dew point, and dryness at 2 levels inthe atmosphere
Term
Coriolis force
Definition
Causes moving objects to be deflected in a clockwise direction
Term
Virga rain
Definition
Rain that doesn't reach the ground
Term
Slope
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
Term
Map Reading
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
Term
Hachures (Depression contours)
Definition
Sometimes used with contours to indicate a steep cliff on map
Term
Close contour lines
Definition
Mean steep terrain
Term
Sharp V's in contour lines 
Definition
Show streams
Term
Contour lines that converge into one line
Definition
Indicate a cliff
Term
Contour lines in the shape of U's with the open end pointing toward high ground
Definition
indicate a ridge
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
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
firing operations
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.
Term
four firefighting tactical situations
Definition
  1. spotting
  2. full control
  3. partial control
  4. no control
Term
Roof fire
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
Spotting Zone
Definition
is an area around a structure that you will defend
Term
Action plan
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
Organized independence
Definition
is one key to being successful during extreme fire conditions,  and structure protection
Term
Bull dozer
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
Term
15 person crew production rate
Definition
Should be able to construct a 3 foit wide fireline around a one acre grass fire
Term
retardant lines
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
Air attack
Definition
  • Use clock orientation
  • lead planes are used to provide a higher degree of safety for airtankers

 

Term
helio-ops
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
Combination nozzle
Definition
  • Best for use on wildland fire. It is much more versatile
  • Can provide a protective cone
  • Straight streams have greater reach
Term
Tandem attack
Definition
  1. Allows firefighting resources to leap-frog
  2. Involves two or more engines or other firefighting apparatus 
  3. Lead engine can move faster knowing the tandem engine will pickup any hotspots
Term
Relative humidity
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
Rate of spread
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
Slopover
Definition
Where the fire crosses the fireline
Term
One foot in the black
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
Size up
Definition
  1. Not a one time activity
  2. Is the development of a mental picture of what is happening, what the fire is doing or will do
  3. Continuous process that is only concluded when fire is under control
Term
What are the three elements that make up the fire triangle?
Definition
Fuel, oxygen, and heat
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
Convection and radiation
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
Wind
Term
A fire burning on level ground will spread twice as fast when it reaches_____% slope and double again as the slope reaches______%
Definition
30%
50%
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
heat moves in 3 ways:
Definition
conduction, convection, and radiation
Term
fire behavior is determined by 3 things:
Definition
type of fuel, weather, and topography
Term
fire environment includes:
Definition
fuel moisture & temperature, terrain, wind, stability of air, and fire behavior
Term
Topography

Slope:
Definition
Pre-heats, creates a draft effect, runs faster uphill than down, and one common denominator of fatal fires
Term
Topography

Aspect:
Definition
1) South and west facing slopes will normally burn hotter in the afternoon
2) Aspect is the direction the slope faces
Term
Topography

Elevation:
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
Term
What are the seven elements included in the fire environment?
Definition
Air Stability Fire Behavior
Fuel Type
Fuel Moisture
Fuel Temperature
Terrain
Wind
Term
What weather factors should be a concern to firefighters?
Definition
Wind Speed and Direction
Moisture
Cloud Cover
Air Stability
Temperature
Term
Three reasons stronger wind increases the rate of spread?
Definition
1. Additional supply of air
2. Flattens the flames to preheat the fuel load
3. Causes spot fires
Term
What is the difference between relative humidity in the day and in the night?
Definition
RH lower during the day

RH higher during the night
Term
Visible indicators of unstable air.
Definition
Vertical Clouds
Upward and downward current
Good visibility
Dust Devils
Warmer at lower elevations
Term
What is a downburst/microburst?

What are some safety concerns when a downburst is occuring?
Definition
Sudden downward release of cool air from a collapsing thundercloud.

Rapid increase in fire behavior.
Spreads fire in all directions.
Term
What are the elements included in topography?
Definition
Slope
Position of fire on slope
Aspect
Elevation
Configuration of land
Term
What ways does slope affect fire spread?
Definition
Allows flame to better preheat fuels above fire.
Creates draft effect
Causes burning material to roll downhill
Term
At what percent will the rate of spread of an uphill fire double?
Definition
30 percent

55 percent
Term
Which aspects cause the firefighter the most concern.
Definition
South and West aspects.

S and W exposed to more thermal heating by the sun, causing higher temperature and lower humidity.
Term
What do you need to observe when working in narrow canyons?
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.
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?
Definition
Saddles
Term
Two categories of wildland fuels?

Man made type of fuel
Definition
Light or fast burning

Homes, barns, sheds, buildings
Term
What are terms used to classify fuels as to their position on the ground or in the air?
Definition
Ground
Surface
Aerial
Term
Heavy Fuels

Logs
Stumps
Branchwood
Logging Slash/debris
Deep Duff
Definition
Light
Dry Grass
Dead Leaves
Tree Needles
Brush
Small Trees
Term
Heavy Fuels
Definition
Harder to ignite
Burn slower
Burn extremely hot
Harder to suppress
Dangerous
Term
Light fuels
Definition
Easier to ignite
Burn Faster
Burn Hot
Easier to suppress
Very Dangerous
Term
Two types dead fuel moisture
Definition
Dead Fuel Moisture

Live Fuel Moisture
Term
Area ignition safety concerns
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
Term
Indicators for extreme fire behavior
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
Term
Fitness
Definition
1. aerobic 2. muscular

a. More tolerant of heat
b. Acclimate faster
c. Work with lower heart rate
Term
Ration of hours of work to sleep on the fireline.
Definition
2 hours of work to 1 hour rest or sleep
Term
Heat Stress Symptoms
Definition
1. Painful Muscle Cramps
2. Weakness
3. Headache
4. Nausea
5. Wet clammy Skin
Term
CO Exposure Symptoms
Definition
Headaches
Fatigue
Dropwsiness
Term
FIRE ORDERS
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
Term
Firefighter fatalities five common denominators
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.
Term
LACES
Definition
Lookout
Awareness
Communication
Escape Routes
Safety Zones
Term
Fireline Dangers
Definition
Snags
Rolling Rocks
Hand Tools
Retardant Drops
Snakes and Ticks
Power Lines
Term
Snag

Widow Marker
Definition
Dead Tree waiting to fall

Dead limb hanging loose in a tree
Term
Principles of fireline placement
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.
Term
General for width of most firelines
Definition
1 1/2 times wide as fuel is tall
Term
Ways fires can cross fireline
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
Term
Six factors that determine the width of the fireline
Definition
Fuel
Topography
Weather
Parts of fire to be controlled
Size of fire being controlled
Possibility of cooling
Term
Guidelines for downhill fireline construction.
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
Term
How many volumes of burning fuel will one volume of water cool?
Definition
300
Term
Class A foam
Definition
Effective because it attacks all three sides of a fire. It cools, smothers, and insulates.
Term
Wetting Agents
Definition
Chemicals that reduce the surface tension of water. Increased penetration, and spreading capability.
Term
Objectives of burning out
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
Term
General rules for burning operations
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
Term
3 types of fireing techniques
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
Term
Strategy Definition

Tactic Definition
Definition
Strategy is what

Tactic is how
Term
Wildland size up elements
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
Term
Wildland size up elements
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
Term
Seven Priorities of wildland fire suppression
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
Term
Fire flame lengths
Definition
less than 4 ft. = Handline
4 - 8 ft. = Bulldozers, engines, retardant
8 - 11 ft. = No control at head of fire
Term
3 Initial Attack Methods
Definition
Direct

Indirect

Parallel
Term
Hotspotting
Definition
Attacking the fire at the point of most active spread
Term
Cold Trailing
Definition
Firefighters are working along partially dead line. Improving existing or cutting new line when necessary.
Term
Rules of Mop Up
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
Term
Components that make ICS work.
Definition
Common Terminology
Modular Organization
Integrated Communications
Unified Command Structure
Consolidated Action Plan
Span of Control
Designated Incident Facilities
Firefighting Resources
Resource Management
Term
Mobile Attack
Definition
Defn: A direct attack method where the engine drives along the edge of a fire with a firefighter on hoseline extinguishing fire.
Term
Mobile Attack strategy
Definition
Used: When fuel are light
When topography allows
When engine has pump and roll
capability
Term
Four Ways to Use Mobile Attack
Definition
Flanking Attack
Tandem Attack
Pincer Attack
Envelopment Attack
Term
Key points of flanking attack
Definition
Pick Anchor Point
Start Extinguishing Fire Edge
Move as fast as fire is extinguished
Continue along flank until fire extinguished
Term
Key Points of Tandem Attack
Definition
Lead Engine knocks heat out of fire
Second Engine follows, picking up
hot spots
Term
Key Points of Pincer Attack
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
Term
Envelopment Attack
Definition
Fire's perimeter is attacked at several points at same time.
Critical areas attacked first
Attack must be well coordinated
Term
Engine Company Uses
Definition
Direct Attack
Hotspotting
Cutting Fire line
Water Supply
Structure Protection
Medical Aid
Term
Bulldozers
Definition
A. Cut a lot of line

B. Do a lot of damage
Term
Hand Crews
Definition
Hose Lays
Firing Operations
Structure Protection
Mopping Up
Cleaning Up
Logistical Support
Term
General porduction rates for fireline construction
Definition
60 ft. line/hour grass
30 ft. medium brush
20 ft. heavy brush
15 ft. very heavy brush
Term
Airtankers
Definition
Most Effective on Initial Attack fires
Need follow up by ground forces
Expensive
May be diverted to new fires
Term
Six ways to use helicopters
Definition
Water, retardant, foam drops
Move personnel
Transport Supplies
Start backfires
Evacuate personnel
Provide reconnaissance
Term
Wildland/Urban Interface conditions.
Definition
Structures already involved
Fire is driving the incident
No time to plan an attack
Water is limited
Numerous non-fire problems
Term
Wildland/Urban Interface Structure protection
Definition
1. Best way is offensive

Other = Defensive
= Combination
Term
Three Categories of Structures
Definition
Those Threatened
Those hopeless or too dangerous
Those that will be threatened and have potential of being saved.
Term
Wildland/Urban Interface engine positioning
Definition
Note landmarks and hazards
Potential Safety Zones
Back In
Do not block traffic
Do not park under power lines
Survey area for hazards
Term
Engine Positioning
Definition
Back In Fill Tank
Leave Running Crew Protection Line
Ladders Structure Protection
Clear Roof Move woodpiles
Close Windows
Term
Wildland Classes of Fire
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
Term
Contain

Control
Definition
To check the fire's spread under prevailing conditions

To complete firelines around a fire and cool down hot spots
Term
Parts of a Fire
Definition
Left Flank Right Flank
Fireline Origin
Head Island
Spot Fire Heel or Base
Finger
Pocket
Term
Four Conditions
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
Term
LACES
Definition
Lookouts
Awareness
Communications
Escape Routes
Safety Zones
Term
Laces Aspects of Awareness
Definition
Fire weather
Fire behavior
Understanding Assignment
Activities around you
Terrain
Term
LACES Communications
Definition
Quick
Reliable
Tested
Term
LACES Escape Routes
Definition
Scouted
Walkable
Timed
Marked
Away from fire's head
Term
LACES Safety Zone
Definition
Void of Flammable Fuels
Reachable
Large Enough
Away from Snags
Term
VIRGA
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.
Term
Wyes and tees
Definition
Every 300 feet
Term
5 gallon backpack weighs?
Definition
56 lbs
Term
2 main hose accessories
Definition
  • Hose clamp
  • Spanner
Term
3 types of portable pumps
Definition
  1. On land
  2. submergible
  3. Floating
Term
2 types of firing tools
Definition
  1. Drip torch
  2. Fuse
Term
Air tanker 
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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