Intermediate Wildland Fire Behavior,S-
290
Seven Wild-land Fire Environment Factors. - answer-Terrain - Fuel Characteristic
-Fire Triangle
-Wind - Fuel Moisture
-Stability - Fuel Temperature
Weather factors relating to wild and fire behavior. - answer temperature, relative
humidity, atmospheric stability, wind speed and direction, precipitation
Topographic factors important to woodland fire behavior. - answer Elevation, position on
slop, aspect, shape of the country, steepness of slope
Fuel Factors important to wild-land fire behavior. - answer Fuel loading, size and shape,
compactness, horizontal continuity, vertical continuity, chemical content.
Conduction - answerThe transfer of heat from one molecule to another.
Convection - answerThe transfer of heat from the motion of air.
Radiation - answerThe transfer of heat by electromagnetic waves.
The three methods of mass transport of firebrands are - answerconvection, wind, gravity
How many ft in 1 chain? - answer66 ft
Spotting - answerFire producing sparks or embers that are carried by the wind and start
new fires beyond main fire.
Surface Fire - answerFire that burns service litter, debris, and small vegetation.
Running - answerFire spreading rapidly with a well defined head.
Creeping - answerFire burning with a low flame and spreading slowly.
Smoldering - answerFire burning without flame and barely spreading.
Crown Fire - answerFire that advances from top-to-top of trees or shrubs more or less
independently of the surface fire.
Ground Fire - answerFire that consumes the organic material beneath the surface litter.
, Flare-up - answerSudden acceleration of fire spread or intensity, but of relatively short
duration.
Flaming Front - answerthe zone of a moving fire within which combustion is primarily
flaming.
Fire-whirl - answerA spinning, moving column of ascending air rising with in a vortex
and carrying aloft smoke, debris, and flames.
Torching - answerFire moving from surface fuels into the crowns of individual trees, but
not necessarily from one crown to another.
Topography can directly and indirectly affect fuels and their availability for combustion. -
answerTrue
Of the three primary environmental factors that influence fire behavior, which is the least
variable? - answerTopography
The least critical form of heat transfers that influences rate of spread in a running
woodland fire is. - answerConduction
The point to which a combustible material must be heated to produce self-sustaining
combustion is know as the? - answerIgnition Temperature
Fireline intensity is dependent upon... - answerFuel size, fuel moisture, fuel
temperature, fuel compactness and arrangement.
Two requirements for long-range spotting are wind and well-developed convection
column. - answerTrue
A fire advances through canopies of brush and tress is known as a? - answerCrown
Fire
Troposphere - answerThe lowest layer of the atmosphere is the troposphere.
Standard Atmospheric Pressure - answer14.7 pounds per sq inch
Nearly all the heating of the earths surface and its atmosphere comes from? -
answerThe Sun
Which substance will hold heat the longest? - answerWater
Why do dry climates usually have greater temperature differences between night and
day than humid climates? - answerThere is less water vapor in the air to hold in heat at
night and reflect radiation during the day.
290
Seven Wild-land Fire Environment Factors. - answer-Terrain - Fuel Characteristic
-Fire Triangle
-Wind - Fuel Moisture
-Stability - Fuel Temperature
Weather factors relating to wild and fire behavior. - answer temperature, relative
humidity, atmospheric stability, wind speed and direction, precipitation
Topographic factors important to woodland fire behavior. - answer Elevation, position on
slop, aspect, shape of the country, steepness of slope
Fuel Factors important to wild-land fire behavior. - answer Fuel loading, size and shape,
compactness, horizontal continuity, vertical continuity, chemical content.
Conduction - answerThe transfer of heat from one molecule to another.
Convection - answerThe transfer of heat from the motion of air.
Radiation - answerThe transfer of heat by electromagnetic waves.
The three methods of mass transport of firebrands are - answerconvection, wind, gravity
How many ft in 1 chain? - answer66 ft
Spotting - answerFire producing sparks or embers that are carried by the wind and start
new fires beyond main fire.
Surface Fire - answerFire that burns service litter, debris, and small vegetation.
Running - answerFire spreading rapidly with a well defined head.
Creeping - answerFire burning with a low flame and spreading slowly.
Smoldering - answerFire burning without flame and barely spreading.
Crown Fire - answerFire that advances from top-to-top of trees or shrubs more or less
independently of the surface fire.
Ground Fire - answerFire that consumes the organic material beneath the surface litter.
, Flare-up - answerSudden acceleration of fire spread or intensity, but of relatively short
duration.
Flaming Front - answerthe zone of a moving fire within which combustion is primarily
flaming.
Fire-whirl - answerA spinning, moving column of ascending air rising with in a vortex
and carrying aloft smoke, debris, and flames.
Torching - answerFire moving from surface fuels into the crowns of individual trees, but
not necessarily from one crown to another.
Topography can directly and indirectly affect fuels and their availability for combustion. -
answerTrue
Of the three primary environmental factors that influence fire behavior, which is the least
variable? - answerTopography
The least critical form of heat transfers that influences rate of spread in a running
woodland fire is. - answerConduction
The point to which a combustible material must be heated to produce self-sustaining
combustion is know as the? - answerIgnition Temperature
Fireline intensity is dependent upon... - answerFuel size, fuel moisture, fuel
temperature, fuel compactness and arrangement.
Two requirements for long-range spotting are wind and well-developed convection
column. - answerTrue
A fire advances through canopies of brush and tress is known as a? - answerCrown
Fire
Troposphere - answerThe lowest layer of the atmosphere is the troposphere.
Standard Atmospheric Pressure - answer14.7 pounds per sq inch
Nearly all the heating of the earths surface and its atmosphere comes from? -
answerThe Sun
Which substance will hold heat the longest? - answerWater
Why do dry climates usually have greater temperature differences between night and
day than humid climates? - answerThere is less water vapor in the air to hold in heat at
night and reflect radiation during the day.
