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S-290 FINAL EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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S-290 FINAL EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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S-290 FINAL EXAM 2024/2025 WITH 100%ACCURATE SOLUTIONS
T/F Topography can directly and indirectly affect fuels and their
availability for combustion. - Answer✔✔True
Of the three primary environmental factors that influence fire behavior,
which is the least variable? - Answer✔✔Topography
The least critical form of heat transfer that influences rate of spread in a
running wild land fire is: - Answer✔✔Conduction
The point to which a combustible material must be heated to produce
self-sustaining combustion is known as the: - Answer✔✔Ignition
temperature
Fireline intensity is dependent upon: - Answer✔✔All of the above.
Fuel size
Fuel moisture
Fuel temperature
Fuel compactness and arrangement
T/F Two requirements for long range spotting are wind and a well
developed convection column. - Answer✔✔True
, A fire that advances through canopies of brush and trees is known as a: -
Answer✔✔Crown fire
Fire is burning in litter on top of the ground, but occasionally carries into
the crowns of individual trees, which produces burning embers that start
new fires outside the fire perimeter. - Answer✔✔Surface fire with
torching and spotting.
Fire begins burning into the crowns and spreads through the canopy.
There is a sudden increase in fireline intensity where the fire controls it's
environment. At one point flames can be seen carried high into the
convection column with a whirling motion. - Answer✔✔Ground fire
with smoldering and flare ups.
T/F Upward moving air contracts and warms. - Answer✔✔False
As air sinks, it. - Answer✔✔Increases in pressure, warms and
compresses.
Why do dry climates usually have lower nighttime temperatures than
humid climates? - Answer✔✔Because there is less water vapor in the air
to absorb and reflect heat back to the surface at night.
T/F On average the RH doubles with each 20F decrease of temperature,
or halves with each 20F increase in temperature. - Answer✔✔True
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