S-290 Intermediate Wildland Fire Behavior Questions
with verified answers
Ans✓✓✓ smaller-scale winds that develop as a result of local temperature
differences
0 to 1/4 inch diameter Ans✓✓✓ 1-hour time lag fuels
1 inch to 3 inches in diameter Ans✓✓✓ 100-hour time lag fuels
1/4 to 1 inch diameter Ans✓✓✓ 10-hour time lag fuels
3 inch to 8 inches in diameter Ans✓✓✓ 1000-hour time lag fuels
air mass Ans✓✓✓ a large body of air with "homogeneous" or similar
temperature and moisture characteristics
air pressure, air temperature, relative humidity, wind, clouds, precipitation,
visibility Ans✓✓✓ the weather variations or elements are
albedo Ans✓✓✓ refers to the ability of a substance to reflect light and heat
energy
Aspect Ans✓✓✓ the direction a slope is facing, and most commonly expressed as
one of the eight cardinal directions
, Barrier Ans✓✓✓ any obstruction to the spread of fire. typically an area or strip
devoid of combustible fuel
conduction Ans✓✓✓ the transfer of heat from one molecule of matter to
another
Continental Artic (cA) Ans✓✓✓ An air mass originating in the artic regions is
extremely cold and dry
Continental Polar (cP) Ans✓✓✓ An air mass originating from over large, often
cold and dry continental land areas, such as northern portions of north
america( canada)
continental tropical (cT) Ans✓✓✓ An air mass originating from over large, often
warm and dry continental land areas, such as central america (mexico) or
southwest united states
Convection Ans✓✓✓ the transfer of heat resulting from the motion of air (or
fluid)
ex: a fire spreading from surface fuels to arial fuels
columns of smoke rising high into the atmosphere
Convection, wind, gravity Ans✓✓✓ Three methods of mass transport of
firebrands are
dewpoint Ans✓✓✓ the temperature to which air must be cooled to reach
saturation. one of the most reliable methods for measuring atmospheric moisture
with verified answers
Ans✓✓✓ smaller-scale winds that develop as a result of local temperature
differences
0 to 1/4 inch diameter Ans✓✓✓ 1-hour time lag fuels
1 inch to 3 inches in diameter Ans✓✓✓ 100-hour time lag fuels
1/4 to 1 inch diameter Ans✓✓✓ 10-hour time lag fuels
3 inch to 8 inches in diameter Ans✓✓✓ 1000-hour time lag fuels
air mass Ans✓✓✓ a large body of air with "homogeneous" or similar
temperature and moisture characteristics
air pressure, air temperature, relative humidity, wind, clouds, precipitation,
visibility Ans✓✓✓ the weather variations or elements are
albedo Ans✓✓✓ refers to the ability of a substance to reflect light and heat
energy
Aspect Ans✓✓✓ the direction a slope is facing, and most commonly expressed as
one of the eight cardinal directions
, Barrier Ans✓✓✓ any obstruction to the spread of fire. typically an area or strip
devoid of combustible fuel
conduction Ans✓✓✓ the transfer of heat from one molecule of matter to
another
Continental Artic (cA) Ans✓✓✓ An air mass originating in the artic regions is
extremely cold and dry
Continental Polar (cP) Ans✓✓✓ An air mass originating from over large, often
cold and dry continental land areas, such as northern portions of north
america( canada)
continental tropical (cT) Ans✓✓✓ An air mass originating from over large, often
warm and dry continental land areas, such as central america (mexico) or
southwest united states
Convection Ans✓✓✓ the transfer of heat resulting from the motion of air (or
fluid)
ex: a fire spreading from surface fuels to arial fuels
columns of smoke rising high into the atmosphere
Convection, wind, gravity Ans✓✓✓ Three methods of mass transport of
firebrands are
dewpoint Ans✓✓✓ the temperature to which air must be cooled to reach
saturation. one of the most reliable methods for measuring atmospheric moisture
