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S-290 FINAL EXAM BRAND NEW OFFICIAL
QUESTIONS WITH ANSWERS.
The surface fire characteristics chart relates _____. - correct
answer -Rate of spread and flame length.
T/F Regardless of fine dead fuel moisture percentage, rate of
spread is determined by the live fuel moisture. - correct answer -
False
En route to a fire you notice that smoke from a burning haystack
rises straight up. What could this indicate on a wild land fire: -
correct answer -An unstable atmosphere may increase fire
activity.
A ground fire has burned under a thick stand of pine reproduction.
What potential problems could occur? - correct answer -A return
possibly involving the canopies.
You are on a fire in the coast range of Southern California. The
fire is burning above you on the slope. At 1800, you experience a
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sudden cal in the sea breeze. What might you next expect to
occur next? - correct answer -Wind may shift to downslope with
possible foehn wind surfacing.
The convection column form your fire has developed to several
thousand feet as a result of intense burning. You notice the top of
the column has been sheared off. What could happen next? -
correct answer -Expect moderate to long range spotting
downwind.
Strong winds aloft could surface on the fire.
Wild land fire behavior in the third dimension: - correct answer -All
of the above
Presents a vertical dimension to fire suppression
Exhibits crowning, spotting, and vortex phenomena.
May affect the atmosphere near the fire.
4 factors that are responsible for the occurrence of fire behavior in
the third dimension are: - correct answer -Available fuels, wind,
low atmospheric moisture, and instability.
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Three stages of crown fire development are: - correct answer -
Passive, active, and independent.
T/F Crown fire development depends on crown flammability along
with adequate surface-to-crown and crown-to-crown heat transfer.
- correct answer -True
The factors that contribute to the spotting problem can be
classified into three general areas: - correct answer -Firebrand
source, transportation, and the receiving fuel.
Probability of ignition is determined by: - correct answer -Fuel
shading, fine dead fuel moisture percent, and dry bulb
temperature.
T/F Vortices are grouped as vertical or horizontal depending on
their axis of rotation. - correct answer -True
When the wild land fire environment is dominated by a ______
fire, the convection column overpowers the wind field. - correct
answer -Plume-dominated
S-290 FINAL EXAM BRAND NEW OFFICIAL
QUESTIONS WITH ANSWERS.
The surface fire characteristics chart relates _____. - correct
answer -Rate of spread and flame length.
T/F Regardless of fine dead fuel moisture percentage, rate of
spread is determined by the live fuel moisture. - correct answer -
False
En route to a fire you notice that smoke from a burning haystack
rises straight up. What could this indicate on a wild land fire: -
correct answer -An unstable atmosphere may increase fire
activity.
A ground fire has burned under a thick stand of pine reproduction.
What potential problems could occur? - correct answer -A return
possibly involving the canopies.
You are on a fire in the coast range of Southern California. The
fire is burning above you on the slope. At 1800, you experience a
, Page | 2
sudden cal in the sea breeze. What might you next expect to
occur next? - correct answer -Wind may shift to downslope with
possible foehn wind surfacing.
The convection column form your fire has developed to several
thousand feet as a result of intense burning. You notice the top of
the column has been sheared off. What could happen next? -
correct answer -Expect moderate to long range spotting
downwind.
Strong winds aloft could surface on the fire.
Wild land fire behavior in the third dimension: - correct answer -All
of the above
Presents a vertical dimension to fire suppression
Exhibits crowning, spotting, and vortex phenomena.
May affect the atmosphere near the fire.
4 factors that are responsible for the occurrence of fire behavior in
the third dimension are: - correct answer -Available fuels, wind,
low atmospheric moisture, and instability.
, Page | 3
Three stages of crown fire development are: - correct answer -
Passive, active, and independent.
T/F Crown fire development depends on crown flammability along
with adequate surface-to-crown and crown-to-crown heat transfer.
- correct answer -True
The factors that contribute to the spotting problem can be
classified into three general areas: - correct answer -Firebrand
source, transportation, and the receiving fuel.
Probability of ignition is determined by: - correct answer -Fuel
shading, fine dead fuel moisture percent, and dry bulb
temperature.
T/F Vortices are grouped as vertical or horizontal depending on
their axis of rotation. - correct answer -True
When the wild land fire environment is dominated by a ______
fire, the convection column overpowers the wind field. - correct
answer -Plume-dominated
