3/15/25, 10:46 AM
S-190: Module 2 - Principles of Wildland fire Behavior
WILDLAND FIRE S190 –MODULE 2 PRINCIPLES OF WILDLAND
FIRE BEHAVIOR EXAM NEWEST 2024/2025 ACTUAL COMPLETE
180 REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
What are two things that Elevation and moisture content
effect fuel types?
What are examples of Dead fall, logging residuals.
slash and blow- down
fuels?
What are examples of timber Oaks, hickory, cypress, & cedar.
fuels?
What are examples of shrub Mesquite, chaparrel, & Alaska black spruce
fuels?
Wild oats, & tundra species.
What are examples of grass
fuels? Note: Grasses burn the hottest and fastest of all the fuel types.
What are some examples of Log decks at saw mills, dump sites, & above-ground oil and
man-made fuel sources? natural gas pipelines.
What is one fuel that you man-made structures
might find no matter where
you're fighting fires?
1. Fuel Loads
2. Size & shape
3. Continuity
What are 7 fuel characteristics
4. Vertical arrangement
that fire behavior is 5. Moisture
dependent on? 6. Temperature, &
7. Compaction.
(Blank), refers to the amount Fuel load (sometimes called fuel volume)
of both live & dead fuel in a
specific area.
1/19
,3/15/25, 10:46 AM
Fuel, (Blank), &, (Blank), Fuel size & shape
affect the rate of heat
transfer and the change in
moisture content.
In general, (blank), fuels Fine fuels; Heavy fuels
have a higher surface area to
volume ratio then, (blank),
fuels.
Fuel, (blank), is a Fuel continuity. Fuel continuity influences the spread of fire.
characteristic used to
describe the horizontal &
vertical spacing of fuels is
a given area.
Fuel, (blank), is the amount of Fuel moisture
water in a
fuel, expressed as a
percentage of the total
oven-dry weight of that
fuel.
With all other factors affecting Higher, Lesser
fire behavior being equal,
areas of, (blank), fuel loading
will generate more heat
than those with,
(blank), fuel loads.
Fuel size affects the rate of, Heat Transfer; & Moisture Content
(blank), and the change in,
(blank), content.
Light Fuels (also called fine or flashy fuels), are surface
fuels, such as short grasses & light shrubs or brush
What are "light fuels"?
which burn rapidly & with high intensity. Light fuels take
on & give up moisture faster than heavier fuels.
Generally, light fuels produce a relatively High ROS.
2/19
, 3/15/25, 10:46 AM
Examples of medium fuels include shrubs or brush up
What are medium fuels?
to 6 feet in height & the grass under-story. Medium
fuels generally produce a Medium ROS.
Heavy fuels consist of heavy continuous shrubs or brush
What are heavy fuels? more than 6 feet in height & timber slash. Combustion
of these fuels includes high--intensity burning but
generally a low ROS.
What are uniform or They are fuels that are close together & spread evenly over an
continuous fuels? area.
When fuels are close together, faster
a fire
spreads, (blank), because of
radiant heat transfer and
produces a relatively uniform
and predictable ROS.
Fuel moisture is affected by Amount & Duration
the, (blank), & the, (blank),
or percipitation
The, (blank), the distance further
between aerial fuels, the
slower they ignite.
Fire in highly compact fuels Low Intensity
generally burn with, (blank),
intensity.
Subsurface fuels, (blank) burn Don't
rapidly.
Once ignited, (blank), Subsurface fuels
fuels are often difficult to
find and extinguish.
(Blank), fuels burn rapidly Arial fuels
once they ignite because air
circulates easily between
these fuels and the ground.
(Blank), fuels take on and Light; Heavy
lose moisture faster than,
(blank), fuels.
3/19
S-190: Module 2 - Principles of Wildland fire Behavior
WILDLAND FIRE S190 –MODULE 2 PRINCIPLES OF WILDLAND
FIRE BEHAVIOR EXAM NEWEST 2024/2025 ACTUAL COMPLETE
180 REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
What are two things that Elevation and moisture content
effect fuel types?
What are examples of Dead fall, logging residuals.
slash and blow- down
fuels?
What are examples of timber Oaks, hickory, cypress, & cedar.
fuels?
What are examples of shrub Mesquite, chaparrel, & Alaska black spruce
fuels?
Wild oats, & tundra species.
What are examples of grass
fuels? Note: Grasses burn the hottest and fastest of all the fuel types.
What are some examples of Log decks at saw mills, dump sites, & above-ground oil and
man-made fuel sources? natural gas pipelines.
What is one fuel that you man-made structures
might find no matter where
you're fighting fires?
1. Fuel Loads
2. Size & shape
3. Continuity
What are 7 fuel characteristics
4. Vertical arrangement
that fire behavior is 5. Moisture
dependent on? 6. Temperature, &
7. Compaction.
(Blank), refers to the amount Fuel load (sometimes called fuel volume)
of both live & dead fuel in a
specific area.
1/19
,3/15/25, 10:46 AM
Fuel, (Blank), &, (Blank), Fuel size & shape
affect the rate of heat
transfer and the change in
moisture content.
In general, (blank), fuels Fine fuels; Heavy fuels
have a higher surface area to
volume ratio then, (blank),
fuels.
Fuel, (blank), is a Fuel continuity. Fuel continuity influences the spread of fire.
characteristic used to
describe the horizontal &
vertical spacing of fuels is
a given area.
Fuel, (blank), is the amount of Fuel moisture
water in a
fuel, expressed as a
percentage of the total
oven-dry weight of that
fuel.
With all other factors affecting Higher, Lesser
fire behavior being equal,
areas of, (blank), fuel loading
will generate more heat
than those with,
(blank), fuel loads.
Fuel size affects the rate of, Heat Transfer; & Moisture Content
(blank), and the change in,
(blank), content.
Light Fuels (also called fine or flashy fuels), are surface
fuels, such as short grasses & light shrubs or brush
What are "light fuels"?
which burn rapidly & with high intensity. Light fuels take
on & give up moisture faster than heavier fuels.
Generally, light fuels produce a relatively High ROS.
2/19
, 3/15/25, 10:46 AM
Examples of medium fuels include shrubs or brush up
What are medium fuels?
to 6 feet in height & the grass under-story. Medium
fuels generally produce a Medium ROS.
Heavy fuels consist of heavy continuous shrubs or brush
What are heavy fuels? more than 6 feet in height & timber slash. Combustion
of these fuels includes high--intensity burning but
generally a low ROS.
What are uniform or They are fuels that are close together & spread evenly over an
continuous fuels? area.
When fuels are close together, faster
a fire
spreads, (blank), because of
radiant heat transfer and
produces a relatively uniform
and predictable ROS.
Fuel moisture is affected by Amount & Duration
the, (blank), & the, (blank),
or percipitation
The, (blank), the distance further
between aerial fuels, the
slower they ignite.
Fire in highly compact fuels Low Intensity
generally burn with, (blank),
intensity.
Subsurface fuels, (blank) burn Don't
rapidly.
Once ignited, (blank), Subsurface fuels
fuels are often difficult to
find and extinguish.
(Blank), fuels burn rapidly Arial fuels
once they ignite because air
circulates easily between
these fuels and the ground.
(Blank), fuels take on and Light; Heavy
lose moisture faster than,
(blank), fuels.
3/19
