2
WILDLAND FIRE S-190 UNIT 2 FUELS Exam with accurate || || || || || || || || ||
detailed solutions ||
FUEL - ✔✔Fuel is the material that is burning. It can be any kind of combustible material,
|| || || || || || || || || || || || || || || || ||
especially petroleum based products, and wildland fuels. For wildland fire, it is usually live,
|| || || || || || || || || || || || || ||
or dead plant material, but can also include artificial materials. Artificial materials are items
|| || || || || || || || || || || || || ||
such as houses, sheds, fences, pipelines, and trash piles.
|| || || || || || || ||
FUEL DISTRIBUTION - ✔✔Firefighters can be called to respond to incidents in different parts
|| || || || || || || || || || || || || ||
of the country, climate zones, and fuel types.
|| || || || || || || ||
There are geographic and regional distinctions across the country in regards to the
|| || || || || || || || || || || || ||
predominate fuel types in the area. || || || || || ||
The amount of water in the soil and elevation change are some of the reasons behind
|| || || || || || || || || || || || || || || ||
different fuel types. || ||
FUEL TYPE - ✔✔An identifiable association of fuel elements of distinctive species, form, size,
|| || || || || || || || || || || || ||
arrangement, or other characteristics that will cause a predictable rate of spread or
|| || || || || || || || || || || || || ||
resistance to control under specified weather conditions.
|| || || || || || ||
Man-made fuels are referred to as artificial fuels in the wildland fire context.
|| || || || || || || || || || || ||
GRASS - ✔✔Located in all regions of the country, grass is the predominant fuel found in
|| || || || || || || || || || || || || || || ||
desert and range regions. || || || ||
Responds quickly to wind and changes in relative humidity, and burns the fastest of the fuel
|| || || || || || || || || || || || || || ||
types. It is common to hear the term wind-driven when referring to grass fires, due to the
|| || || || || || || || || || || || || || || || || ||
impact wind can have on this fuel.
|| || || || || || ||
Fire can spread very quickly, but can also burn out very quickly, leaving areas safe to move
|| || || || || || || || || || || || || || || || ||
through just seconds after the flaming front passes.
|| || || || || || || ||
Potential to become the prevalent fuel in an area after a fire has occurred. For example,
|| || || || || || || || || || || || || || || ||
after a fire in timber, grass will regenerate first, introducing a new predominate fuel to that
|| || || || || || || || || || || || || || || ||
area.
, 2
SHRUB - ✔✔Shrubs are found in most regions and include some low-growing trees, such as
|| || || || || || || || || || || || || || ||
scrub oaks. || ||
May burn very actively, or may slow the spread of fire depending on type of shrub and time
|| || || || || || || || || || || || || || || || ||
of year.
|| || ||
The shrub type is highly influenced by drought conditions.
|| || || || || || || || ||
When the shrub type is receptive, it has the potential to spread fire quickly.
|| || || || || || || || || || || || ||
NON-FUEL - ✔✔Things that will not burn (water, pavement, rocks)
|| || || || || || || || ||
GRASS-SHRUB - ✔✔Commonly found in the plains regions and high deserts, grass-shrub is a
|| || || || || || || || || || || || ||
mixture of fine grass and shrubs. Fire behavior in this type combines the features of the
|| || || || || || || || || || || || || || || || ||
grass fuel type and the shrub fuel type.
|| || || || || || || ||
Fires may spread rapidly with wind, but more slowly than a grass fuel type.
|| || || || || || || || || || || || || ||
Shrubs add intensity to the fire and may produce spotting, but fires are less intense than in
|| || || || || || || || || || || || || || || || ||
the Shrub type.
|| || ||
Where it may be safe to move in the grass type immediately after fire passes, it may not be
|| || || || || || || || || || || || || || || || || ||
safe in this type because of longer-burning shrubs.
|| || || || || || || ||
TIMBER LITTER - ✔✔Timber litter refers to dead leaves, needles, and twigs on the forest
|| || || || || || || || || || || || || || ||
floor. ||
Fires generally move more slowly in timber types than in grass or shrubs, but burn for
|| || || || || || || || || || || || || || || ||
longer, and are harder to control.
|| || || || || ||
When fires burn through the upper canopy of trees they can move very quickly and with
|| || || || || || || || || || || || || || || ||
extreme intensity. ||
TIMBER UNDERSTORY - ✔✔Timber-understory refers to a canopy of trees with other plants
|| || || || || || || || || || || || ||
(such as shrubs and small trees) growing below them.
|| || || || || || || || ||
Fires in this type combine the features of the timber litter type and the shrub type, moving
|| || || || || || || || || || || || || || || || ||
faster than fires in timber litter, but burning longer than fires in shrubs.
|| || || || || || || || || || || || ||
WILDLAND FIRE S-190 UNIT 2 FUELS Exam with accurate || || || || || || || || ||
detailed solutions ||
FUEL - ✔✔Fuel is the material that is burning. It can be any kind of combustible material,
|| || || || || || || || || || || || || || || || ||
especially petroleum based products, and wildland fuels. For wildland fire, it is usually live,
|| || || || || || || || || || || || || ||
or dead plant material, but can also include artificial materials. Artificial materials are items
|| || || || || || || || || || || || || ||
such as houses, sheds, fences, pipelines, and trash piles.
|| || || || || || || ||
FUEL DISTRIBUTION - ✔✔Firefighters can be called to respond to incidents in different parts
|| || || || || || || || || || || || || ||
of the country, climate zones, and fuel types.
|| || || || || || || ||
There are geographic and regional distinctions across the country in regards to the
|| || || || || || || || || || || || ||
predominate fuel types in the area. || || || || || ||
The amount of water in the soil and elevation change are some of the reasons behind
|| || || || || || || || || || || || || || || ||
different fuel types. || ||
FUEL TYPE - ✔✔An identifiable association of fuel elements of distinctive species, form, size,
|| || || || || || || || || || || || ||
arrangement, or other characteristics that will cause a predictable rate of spread or
|| || || || || || || || || || || || || ||
resistance to control under specified weather conditions.
|| || || || || || ||
Man-made fuels are referred to as artificial fuels in the wildland fire context.
|| || || || || || || || || || || ||
GRASS - ✔✔Located in all regions of the country, grass is the predominant fuel found in
|| || || || || || || || || || || || || || || ||
desert and range regions. || || || ||
Responds quickly to wind and changes in relative humidity, and burns the fastest of the fuel
|| || || || || || || || || || || || || || ||
types. It is common to hear the term wind-driven when referring to grass fires, due to the
|| || || || || || || || || || || || || || || || || ||
impact wind can have on this fuel.
|| || || || || || ||
Fire can spread very quickly, but can also burn out very quickly, leaving areas safe to move
|| || || || || || || || || || || || || || || || ||
through just seconds after the flaming front passes.
|| || || || || || || ||
Potential to become the prevalent fuel in an area after a fire has occurred. For example,
|| || || || || || || || || || || || || || || ||
after a fire in timber, grass will regenerate first, introducing a new predominate fuel to that
|| || || || || || || || || || || || || || || ||
area.
, 2
SHRUB - ✔✔Shrubs are found in most regions and include some low-growing trees, such as
|| || || || || || || || || || || || || || ||
scrub oaks. || ||
May burn very actively, or may slow the spread of fire depending on type of shrub and time
|| || || || || || || || || || || || || || || || ||
of year.
|| || ||
The shrub type is highly influenced by drought conditions.
|| || || || || || || || ||
When the shrub type is receptive, it has the potential to spread fire quickly.
|| || || || || || || || || || || || ||
NON-FUEL - ✔✔Things that will not burn (water, pavement, rocks)
|| || || || || || || || ||
GRASS-SHRUB - ✔✔Commonly found in the plains regions and high deserts, grass-shrub is a
|| || || || || || || || || || || || ||
mixture of fine grass and shrubs. Fire behavior in this type combines the features of the
|| || || || || || || || || || || || || || || || ||
grass fuel type and the shrub fuel type.
|| || || || || || || ||
Fires may spread rapidly with wind, but more slowly than a grass fuel type.
|| || || || || || || || || || || || || ||
Shrubs add intensity to the fire and may produce spotting, but fires are less intense than in
|| || || || || || || || || || || || || || || || ||
the Shrub type.
|| || ||
Where it may be safe to move in the grass type immediately after fire passes, it may not be
|| || || || || || || || || || || || || || || || || ||
safe in this type because of longer-burning shrubs.
|| || || || || || || ||
TIMBER LITTER - ✔✔Timber litter refers to dead leaves, needles, and twigs on the forest
|| || || || || || || || || || || || || || ||
floor. ||
Fires generally move more slowly in timber types than in grass or shrubs, but burn for
|| || || || || || || || || || || || || || || ||
longer, and are harder to control.
|| || || || || ||
When fires burn through the upper canopy of trees they can move very quickly and with
|| || || || || || || || || || || || || || || ||
extreme intensity. ||
TIMBER UNDERSTORY - ✔✔Timber-understory refers to a canopy of trees with other plants
|| || || || || || || || || || || || ||
(such as shrubs and small trees) growing below them.
|| || || || || || || || ||
Fires in this type combine the features of the timber litter type and the shrub type, moving
|| || || || || || || || || || || || || || || || ||
faster than fires in timber litter, but burning longer than fires in shrubs.
|| || || || || || || || || || || || ||
