2
Wildland Firefighting Course S-190/S-130 Exam with accurate || || || || || || ||
detailed answers ||
How many feet are in a chain? - ✔✔66 feet
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Name the 3 sides of the fire triangle: - ✔✔1) Oxygen
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2) Fuel
||
3) Heat
||
How does conduction supply heat to a fuel to start a fire? - ✔✔Conduction transfers heat
|| || || || || || || || || || || || || || || ||
to adjacent fuels.via DIRECT CONTACT.
|| || || ||
How does radiation supply heat to a fuel to start a fire? - ✔✔Radiation transfers heat to
|| || || || || || || || || || || || || || || || ||
fuels through heat waves and rays.
|| || || || ||
How does convection supply heat to a fuel to start a fire? - ✔✔Convection transfers heat to
|| || || || || || || || || || || || || || || ||
fuels through indirect heating/cooling via wind/smoke.
|| || || || || ||
Explain the reason for establishing an anchor point. - ✔✔Creates an advantageous and safe
|| || || || || || || || || || || || || ||
point of origin to flank the fire by establishing control lines.
|| || || || || || || || || ||
What types of fuels might we find on the NORTH ASPECT? - ✔✔Heavier fuels,
|| || || || || || || || || || || || ||
lower temperatures,
||
increased humidity, ||
wetter soil, and || ||
increased fuel moisture || ||
, 2
What types of fuels might we find on the SOUTH ASPECT? - ✔✔Lighter fuels,
|| || || || || || || || || || || || ||
increased temperatures, ||
decreased humidity, || ||
dryer soil, and
|| ||
decreased fuel moisture || ||
Describe how a slope can affect a fire's rate of spread. - ✔✔Convected heat rises, and in
|| || || || || || || || || || || || || || || || ||
conjunction with radiant heat, fuels upslope from the fire dry out rapidly and combust at a
|| || || || || || || || || || || || || || || ||
much greater rate than horizontal or downslope spread. Badness.
|| || || || || || || ||
_____ bulb measures the ambient air temperature, and _____ bulb measures evaporation
|| || || || || || || || || || || ||
rates to gauge relative humidity (RH). - ✔✔Dry
|| || || || || || ||
Wet
Explain the inverse relationship between temperature and relative humidity (RH). -
|| || || || || || || || || || ||
✔✔When temperature increases, relative humidity decreases.
|| || || || ||
When temperature decreases, relative humidity increases.
|| || || || ||
What direction is wind coming from in a north wind? - ✔✔North, moving south.
|| || || || || || || || || || || || ||
Describe the effect an incoming cold front might have on fire behavior. - ✔✔A cold front is
|| || || || || || || || || || || || || || || || ||
the boundary line between 2 different air masses, with cooler air behind the frontal warmer
|| || || || || || || || || || || || || ||
air mass. The differing air masses cause pressure differences that move into a region and
|| || || || || || || || || || || || || || || ||
can generate moderate to strong wind speeds.
|| || || || || ||
Wildland Firefighting Course S-190/S-130 Exam with accurate || || || || || || ||
detailed answers ||
How many feet are in a chain? - ✔✔66 feet
|| || || || || || || || ||
Name the 3 sides of the fire triangle: - ✔✔1) Oxygen
|| || || || || || || || || ||
2) Fuel
||
3) Heat
||
How does conduction supply heat to a fuel to start a fire? - ✔✔Conduction transfers heat
|| || || || || || || || || || || || || || || ||
to adjacent fuels.via DIRECT CONTACT.
|| || || ||
How does radiation supply heat to a fuel to start a fire? - ✔✔Radiation transfers heat to
|| || || || || || || || || || || || || || || || ||
fuels through heat waves and rays.
|| || || || ||
How does convection supply heat to a fuel to start a fire? - ✔✔Convection transfers heat to
|| || || || || || || || || || || || || || || ||
fuels through indirect heating/cooling via wind/smoke.
|| || || || || ||
Explain the reason for establishing an anchor point. - ✔✔Creates an advantageous and safe
|| || || || || || || || || || || || || ||
point of origin to flank the fire by establishing control lines.
|| || || || || || || || || ||
What types of fuels might we find on the NORTH ASPECT? - ✔✔Heavier fuels,
|| || || || || || || || || || || || ||
lower temperatures,
||
increased humidity, ||
wetter soil, and || ||
increased fuel moisture || ||
, 2
What types of fuels might we find on the SOUTH ASPECT? - ✔✔Lighter fuels,
|| || || || || || || || || || || || ||
increased temperatures, ||
decreased humidity, || ||
dryer soil, and
|| ||
decreased fuel moisture || ||
Describe how a slope can affect a fire's rate of spread. - ✔✔Convected heat rises, and in
|| || || || || || || || || || || || || || || || ||
conjunction with radiant heat, fuels upslope from the fire dry out rapidly and combust at a
|| || || || || || || || || || || || || || || ||
much greater rate than horizontal or downslope spread. Badness.
|| || || || || || || ||
_____ bulb measures the ambient air temperature, and _____ bulb measures evaporation
|| || || || || || || || || || || ||
rates to gauge relative humidity (RH). - ✔✔Dry
|| || || || || || ||
Wet
Explain the inverse relationship between temperature and relative humidity (RH). -
|| || || || || || || || || || ||
✔✔When temperature increases, relative humidity decreases.
|| || || || ||
When temperature decreases, relative humidity increases.
|| || || || ||
What direction is wind coming from in a north wind? - ✔✔North, moving south.
|| || || || || || || || || || || || ||
Describe the effect an incoming cold front might have on fire behavior. - ✔✔A cold front is
|| || || || || || || || || || || || || || || || ||
the boundary line between 2 different air masses, with cooler air behind the frontal warmer
|| || || || || || || || || || || || || ||
air mass. The differing air masses cause pressure differences that move into a region and
|| || || || || || || || || || || || || || || ||
can generate moderate to strong wind speeds.
|| || || || || ||
