S290 WILDLAND FIRE REVIEW EXAMS ACTUAL
QUESTIONS AND ANSWERS SURE A+
✔✔Aspect affects fuels and their availability to burn because - ✔✔Southwest sites
provide drier sites
Vegetation type and fuel moisture changes by aspect
Shading on northern aspects can increase relative humidity
ALL OF THE ABOVE
✔✔Select the statement that best describes the effect of slope steepness on fuel
availability - ✔✔A fire starting at the base of the slope has more fuel available for
spread
✔✔A fuel model is described as - ✔✔A set of numbers that define fuel input for use in
the surface fire spread model
✔✔The four fuel groups defined in the fire behavior prediction system are - ✔✔Grass,
shrub, timber and logging slash
✔✔Available fuels are - ✔✔All dead and live fuels that will ignite and continue to burn
✔✔Fuel loading is - ✔✔The oven dry weight of fuel in an given area, expressed as
tons/acre or pounds/acre
, ✔✔Fuel moisture content - ✔✔The amount of water in fuel expressed as a percent of
the oven dry weight of that fuel
✔✔Fuel size and shape - ✔✔The surface area to volume ratio
✔✔Fuel chemical content - ✔✔The presence of volatile substances in a fuel
✔✔Which of the following fuel characteristics affect all six wildland fire behavior
concerns, i.e. ignition, spread, intensity, spotting, torching, and crowning - ✔✔Moisture
content
✔✔Which fuel group has the highest surface area to volume ratio? - ✔✔Grass
✔✔What size fuels make up the 1 hour timelag fuel category? - ✔✔0.0 to 1/4" in
diameter
✔✔Fuel moisture timelag can best be defined as - ✔✔The rate at which dead fuel gains
or loses moisture
✔✔One hour timelag fuel moisture is used in fire behavior calculations to determine -
✔✔Whether fine dead fuels are available for ignition and fire spread
✔✔The five stages of vegetative development for live fuel moisture are - ✔✔300, 200,
100, 50, less than 30
✔✔The following statement best describes timelag fuel categories - ✔✔1 hour timelag
fuels react to changes in relative humidity much faster than 100 hour fuels
✔✔T/F
Foehn winds cause fuels to gain in moisture content. - ✔✔False
✔✔T/F
Dead grass reacts like 1 hour timelag fuel - ✔✔True
✔✔The fuel moisture at which fire will not spread is the - ✔✔Moisture of extinction
✔✔Inputs used to determine fine dead fuel moisture content are - ✔✔Time of day,
month of year, dry bulb temperature, relative humidity, aspect, percent slope, shading of
surface fuels
QUESTIONS AND ANSWERS SURE A+
✔✔Aspect affects fuels and their availability to burn because - ✔✔Southwest sites
provide drier sites
Vegetation type and fuel moisture changes by aspect
Shading on northern aspects can increase relative humidity
ALL OF THE ABOVE
✔✔Select the statement that best describes the effect of slope steepness on fuel
availability - ✔✔A fire starting at the base of the slope has more fuel available for
spread
✔✔A fuel model is described as - ✔✔A set of numbers that define fuel input for use in
the surface fire spread model
✔✔The four fuel groups defined in the fire behavior prediction system are - ✔✔Grass,
shrub, timber and logging slash
✔✔Available fuels are - ✔✔All dead and live fuels that will ignite and continue to burn
✔✔Fuel loading is - ✔✔The oven dry weight of fuel in an given area, expressed as
tons/acre or pounds/acre
, ✔✔Fuel moisture content - ✔✔The amount of water in fuel expressed as a percent of
the oven dry weight of that fuel
✔✔Fuel size and shape - ✔✔The surface area to volume ratio
✔✔Fuel chemical content - ✔✔The presence of volatile substances in a fuel
✔✔Which of the following fuel characteristics affect all six wildland fire behavior
concerns, i.e. ignition, spread, intensity, spotting, torching, and crowning - ✔✔Moisture
content
✔✔Which fuel group has the highest surface area to volume ratio? - ✔✔Grass
✔✔What size fuels make up the 1 hour timelag fuel category? - ✔✔0.0 to 1/4" in
diameter
✔✔Fuel moisture timelag can best be defined as - ✔✔The rate at which dead fuel gains
or loses moisture
✔✔One hour timelag fuel moisture is used in fire behavior calculations to determine -
✔✔Whether fine dead fuels are available for ignition and fire spread
✔✔The five stages of vegetative development for live fuel moisture are - ✔✔300, 200,
100, 50, less than 30
✔✔The following statement best describes timelag fuel categories - ✔✔1 hour timelag
fuels react to changes in relative humidity much faster than 100 hour fuels
✔✔T/F
Foehn winds cause fuels to gain in moisture content. - ✔✔False
✔✔T/F
Dead grass reacts like 1 hour timelag fuel - ✔✔True
✔✔The fuel moisture at which fire will not spread is the - ✔✔Moisture of extinction
✔✔Inputs used to determine fine dead fuel moisture content are - ✔✔Time of day,
month of year, dry bulb temperature, relative humidity, aspect, percent slope, shading of
surface fuels
