Shared Flashcard Set

Details

Wildland
Fire Suppression Tactics
60
Other
Not Applicable
03/30/2009

Additional Other Flashcards

 


 

Cards

Term
  • Lookouts
  • Communications
  • Escape Routes
  • Safety Zones
Definition

What does LCES stand for? (p4)

Term
  • firefighter safety
  • fuels and terrain
  • weather
  • smoke column
  • access routes
  • fire barriers
  • potential water sources
  • Definition

    What are a few things to consider when en route to a fire? (p7)

    Term
    Parts of a Fire Terms:


    Point of Origin
    Definition
    The precise location where a competent ignitioin source came into contact with the material first ignited and sustained combustion occurred.

    s190 pg 1.3
    Term
    Head of a fire
    Definition
    The side of the fire having the fastest rate of spread.
    s190 pg 1.3
    Term
    Flank of a fire
    Definition
    The part of a fire's perimeter that is roughly parallel to the main direction of spread.

    s190 pg 1.3
    Term
    Rear of a fire.
    Definition
    That portion of a fire edge opposite the head.

    Slowest spreading portion of a fire edge. Also called heel of a fire.

    s190 pg 1.3
    Term
    Fire perimeter.
    Definition
    The entire outer edge or boundary of a fire.

    s190 pg 1.4
    Term
    Finger of a fire.
    Definition
    The long narrow extensions of a fire projecting from the main body.

    s190 pg 1.4
    Term
    Pockets of a fire.
    Definition
    Unburned indentations in the fire edge formed by fingers or slow burning areas.

    s190 pg 1.4
    Term
    Island
    Definition
    Area of unburned fuel insde the fire perimeter.

    s190 pg 1.4
    Term
    Spot fire.
    Definition
    Fire ignited outside the perimeter of the main fire by a firebrand.
    Term
    Fire Behavior Terms;


    Smoldering.
    Definition
    Fire burning without flame and barely spreading.

    s190 pg 1.6
    Term
    Creeping fire
    Definition
    Fire burning with a low flame and spreading slowly.

    s190 pg 1.6
    Term
    Running fire.
    Definition
    Behaviour of a fire spreading rapidly with a well defined head.

    s190 pg 1.6
    Term
    Spotting
    Definition
    Behavior of a fire producing sparks or embers that are carried by the wind and which start new fires beyond the zone of diret ignition by the main fire.
    s190 pg 1.6
    Term
    Torching.
    Definition
    The burning of the foliage of a single tree or a small group of trees, from the bottom up.

    s190 pg 1.6
    Term
    Crown fire
    Definition
    A fire that advanced from top to top of trees or shrubs more or less independent of a surface fire. Are sometimes classed as running or dependent to distinguish the degree of independence from the surface fire.
    Term
    Flare up
    Definition
    Any sudden acceleration in the rate of spread or intensification of the fire. Unlike blowup, is of relatively short duration and does not change existing control plans.

    s190 pg 1.7
    Term
    Firewhirl
    Definition
    Spinning vortex column of ascending hot air and gases rising from a fire and carrying aloft smoke, debris, and flame. Range in size from less than one foot to over 500 feet in diameter, Large ones have the intensity of a small tornado.

    s190 pg 1.7
    Term
    Firefighting Terms:


    Anchor point.
    Definition
    An advantageous location, usually a barrier to fire spread, from which to start constructing a fireline. Used to minimize the chance of being flanked by the fire while the line is being constucted.

    s190 pg 1.8
    Term
    Control line.
    Definition
    An inclusive term for all constructed or natural barriers and treated fire edges used to contain a fire.

    s190 pg 1.8
    Term
    Fireline.
    Definition
    The part of a containment or control line that is scraped or dug to mineral soil.

    s190 pg 1.8
    Term
    Mop-up.
    Definition
    Extinguishing or removing burning material near control lines, felling snags, and trenching logs to prevent rolling after an area has burned, to make a fire safe, or to reduce residual smoke.
    s190 pg 1.8
    Term
    Contained.
    Definition
    The status of a wildfire suppression action signifying that a control line has been completed around the fire, and any associated spot fires, which can reasonably be expected to stop the fire's spread.
    Term
    Controlled.
    Definition
    The completion of control line around a fire, any spot fires, and any interior islands to be saved.

    Burn out any unburned area adjacent to the fire side of the control lines.

    Cool down all hot spots that are immediate threats to the control line, until the lines can reasonably be expected to hold under the foreseeable conditions.

    s190 pg 1.9
    Term
    Radiation, Convection, Conduction

    s190 pg 1.10
    Definition
    What are three methods of heat transfer?
    Term
    Conduction.

    s190 pg 1.11
    Definition
    What's the least important of the 3 methods of Heat Transfer?
    Term
    FIRE ORDERS
    Definition
    Fight fire aggressively but providing for safety first.
    Initiate all actions based on current and expected fire behavior.
    Recognize current weather conditions and obtain forecast.
    Ensure instructions are given and understood.

    Obtain current information on fire status.
    Remain in communication with crew members, you supervisor and ajoining forces.
    Determine safety zones and escape routes.
    Establish lookouts in potentially hazardous situations.
    Retain control at all times.
    Stay alert, keep calm, think clearly and act decisively.

    wildland sup tactics ref pg 2
    Term
    direct attack
    Definition
    An attack made directly on the fire's edge or perimeter. (p16)
    Term
    parallel attack
    Definition
    attack made by constructing a fireline parallel to, but further from, the fire edge than in direct attack. This attack may shorten fireline construction by cutting across unburned fingers. (p17)
    Term
    indirect attack
    Definition
    attack accomplished by building a fireline some distance from the fire edge and backfiring the unburned fuel between the fireline and the fire edge.
    Takes advantage of using natural and human-made barriers as fireline and allows a choice of timing for backfiring.
    Used on hot fires with high rates of spread
    (p17)
    Term
    hot spotting
    Definition
    a technique to attack a fire where it is most likely to escape or stop hotter burning portions.
    Can be used to cool hot portions of a fire and allow firefighters more time to construct fireline or cool certain portions of a fire to prevent it from making a run.
    (p19)
    Term
    cold trailing
    Definition
    the method of using the extinguished edge of a fire as the fireline
    (p23)
    Term
    back side
    Definition
    when constructing fireline on a ridgetop locate the fireline on the ______________ of the ridge (p24)
    Term
    opposite side
    Definition
    when constructing fireline in the bottom of a canyon locate line on the ____________ to prevent underslug line and the need for cup trenching (p24)
    Term
    snags
    Definition
    Locate fireline far enough away from burning _______ to enclose them if they fall over or are cut down (p25)
    Term
    yellow and black striped flagging
    Definition
    what color of flag is used in hazards such as bees, hornets, wasps, and/or snags? (p28)
    Term
    lime green
    Definition
    What color of flagging identifies escape routes and safety zones? (p28)
    Term
    underslug or undercut fireline
    Definition
    What is fireline that is constructed accross a slope below the fire called? (p31)
    Term
    one and one half times
    Definition
    A general guideline for determining the width of a fireline is that is should be _______________ as wide as the dominate fuel is high (p35)
    Term
    1 to 3 feet
    Definition
    The scraped portion of a fireline is generally ___ to _____ feet wide
    Term
    20 to 30 feet
    Definition
    In timber a fireline is generally ____ to ____ feet wide with a three to four foot scrape (35)
    Term
    Any burnable material.

    s190 pg 2B.3
    Definition
    What is Fuel?
    Term
    Fuel type
    Fuel loading
    Fuel availability


    s190 pg 2B.3
    Definition
    Fire behavior is dependent on what 3 fuel characteristics?
    Term
    -Ground (duff, tree roots).
    -Surface (Needles or leaves, grass, stumps, low shrubs).
    -Ladder (materials that aid the spread of fire from the surface to the upper canopy).
    -Aerial (Tree branches and crowns, Snags, top of trees).

    s190 pg 2B.9
    Definition
    What is the veritcal arrangement of fuels?
    Term
    Higher

    s190 pg 2B.8
    Definition
    The (higher or lower) the Surface-area-to-volume ratio the easier the fuel will burn.
    Term
    Air Tempurature.
    Definition
    Is the degreee of hotness or coldness of the air.

    s190 pg 2C.4
    Term
    Relative Humidity.
    Definition
    Is the amount of moisture in the air divided by the amount the air could hold when satruated at the same air timperature; unsually expressed in percent.


    1% (very dry) to 100% (very moist)
    Term
    Half
    Definition
    For every 10 degree increase in Tempurature, (RH) Relative Humitity will decrease by _______?
    Term
    Stable Atmosphere.
    Definition
    An atmosphere that resists upward motion.
    Term
    -Cloud in layers.
    -Stratus type clouds.
    -Smoke column drifts apart after limited rise.
    -Poor visibility due to smoke or haze.
    -Fog layers.
    -Steady winds.


    s190 pg 2C.10
    Definition
    Stable Atmosphere indicators are?
    Term
    Inversions
    Definition
    A structure layer of stable condition where temperature increases with altitude, ( Warm air/cold air ).

    -Under, fuel moisture content is usually higher, thus decreasing fire spread rates and intensities.

    s190 pg 2C.10
    Term
    Unstable Atmosphere
    Definition
    An Atmosphere that encourages upward motion.

    ( Cold air / Warm air )
    Term
    - Clouds grow vertically and smoke rises to great heights
    -Cumulus clouds
    -Good visiblity
    -Gusty winds
    -Dust devils and firewhirls

    s190 pg 2C.13
    Definition
    What are some unstable Atmosphere Indicators?
    Term
    Wind.
    Definition
    the horizontal movement of air relative to the surface of the earth.

    s190 pg 2C.15
    Term
    - Increasing the supply of oxygen to the fire.
    - Determining the direction of fire spread.
    - Increasing the drying of the fuels.
    - Carrying sparks and firebrands ahead of the main fire causing new spot fires.

    s190 pg 2C.15
    Definition
    How does wind impact the fire environment?
    Term
    the direction FROM which the wind is blowing ( a north wind means the wind is blowing from the north)
    Definition
    What is wind direction?
    Term
    Surfactants.
    Definition
    wetting agents that reduce the surface tension of water which improves its wetting, penetrating, and spreading ability.
    Term
    Name several tactical uses of engines in direct attack?
    Definition
    - Mobile
    - tandem
    - pincer
    - envelopment
    - inside out
    - stationary
    Term
    Name the 3 kinds of wildland/urban interfaces?
    Definition
    1. Mixed interface - occurs when structures are scattered over a large wildland area.

    2. Occluded interfaces - are isolated areas of wildland within an urban area.

    3. Classic interface - is found when many structures, often on small lots, border wildlands on a broad front.
    Supporting users have an ad free experience!