1|Page
S-290 FINAL EXAM; ACTUAL EXAM WITH
VERIFIED ANSWERS
T/F Air flows clockwise around low pressure systems and counterclockwise around
high pressure systems. -correct-answer-False
Slope affects fuel availability to burn because: -correct-answer-Fuels are
preheated upslope through radiation and convection.
Rolling firebrands ignite new fuels below.
Select the correct statement regarding the shape of the country and it's effect on
wild land fire behavior. -correct-answer-The shape of the country can influence
the curing of fuels as well as the intensity and spread of wild land fires.
Aspect affects fuels and their availability to burn because: -correct-answer-All of
the above are correct
Southwest slopes provide drier sites
Vegetation type and fuel moisture content changes by aspect
Shading on northern aspects can increase RH
,2|Page
Select the statement that best describes the effect of slope steepness on fuel
availability. -correct-answer-A fire starting at the base of a slope has more fuel
available for spread.
A fuel model is defined as: -correct-answer-A set of tubers that define fuel input
for use in the surface fire spread model.
The 4 fuel groups as defined in the Fire Behavior Prediction System are: -correct-
answer-Grass, shrub, timer litter, and logging slash.
Available fuels are: -correct-answer-All dead and live fuels that will ignite and
continue to burn.
Fuel loading definition: -correct-answer-The oven dry wight of fuel in an given
area, expressed in tons/acre or pounds/acre.
Fuel moisture content definition: -correct-answer-The amount of water in a fuel
expressed as a percent of the oven dry weight of that fuel.
, 3|Page
Fuel size and shape definition: -correct-answer-The surface-area-to-flume ratio.
Fuel chemical content definition: -correct-answer-The presence of volatile
substances in a fuel.
Which of the following fuel characteristics affect all 6 wild land fire behavior
concerns; i.e. ignition, spread, intensity, spotting, torching, and crowning. -correct-
answer-Moisture content
Which fuel has the higher surface-area-to-volume ration? -correct-answer-Grass
The 1 hour timelag fuel category is: -correct-answer-0.0 to 1/4 inch in diameter
Fuel moisture timelag can best be described as: -correct-answer-The rate at which
dead fuel gains or loses moisture.
1 hour timelag fuel moisture is used in fire behavior calculations to determine: -
correct-answer-Whether fine dead fuels are available for ignition and fire spread.
S-290 FINAL EXAM; ACTUAL EXAM WITH
VERIFIED ANSWERS
T/F Air flows clockwise around low pressure systems and counterclockwise around
high pressure systems. -correct-answer-False
Slope affects fuel availability to burn because: -correct-answer-Fuels are
preheated upslope through radiation and convection.
Rolling firebrands ignite new fuels below.
Select the correct statement regarding the shape of the country and it's effect on
wild land fire behavior. -correct-answer-The shape of the country can influence
the curing of fuels as well as the intensity and spread of wild land fires.
Aspect affects fuels and their availability to burn because: -correct-answer-All of
the above are correct
Southwest slopes provide drier sites
Vegetation type and fuel moisture content changes by aspect
Shading on northern aspects can increase RH
,2|Page
Select the statement that best describes the effect of slope steepness on fuel
availability. -correct-answer-A fire starting at the base of a slope has more fuel
available for spread.
A fuel model is defined as: -correct-answer-A set of tubers that define fuel input
for use in the surface fire spread model.
The 4 fuel groups as defined in the Fire Behavior Prediction System are: -correct-
answer-Grass, shrub, timer litter, and logging slash.
Available fuels are: -correct-answer-All dead and live fuels that will ignite and
continue to burn.
Fuel loading definition: -correct-answer-The oven dry wight of fuel in an given
area, expressed in tons/acre or pounds/acre.
Fuel moisture content definition: -correct-answer-The amount of water in a fuel
expressed as a percent of the oven dry weight of that fuel.
, 3|Page
Fuel size and shape definition: -correct-answer-The surface-area-to-flume ratio.
Fuel chemical content definition: -correct-answer-The presence of volatile
substances in a fuel.
Which of the following fuel characteristics affect all 6 wild land fire behavior
concerns; i.e. ignition, spread, intensity, spotting, torching, and crowning. -correct-
answer-Moisture content
Which fuel has the higher surface-area-to-volume ration? -correct-answer-Grass
The 1 hour timelag fuel category is: -correct-answer-0.0 to 1/4 inch in diameter
Fuel moisture timelag can best be described as: -correct-answer-The rate at which
dead fuel gains or loses moisture.
1 hour timelag fuel moisture is used in fire behavior calculations to determine: -
correct-answer-Whether fine dead fuels are available for ignition and fire spread.
