WILDLAND FIREFIGHTING EXAM-ACTUAL EXAM-LATEST UPDATE 2025 |
COMPLETE QUESTIONS WITH CORRECT DETAILED AND VERIFIED ANSWERS|
MOSTLY TESTED QUESTIONS-RATED 100% CORRECT!! GUARANTEED
PASS!!ALREADY GRADED A+
The range of ignition temperatures of wood is between ____and ____degrees Fahrenheit -
(answers)400 & 700
Normally the woody fuel of the wildland will burst into flame at approx. ____ degrees (
assuming sufficient 02 is present) - (answers)540
The highest temperature that the sun could be expected to develop on a wind sheltered surface is
____ or ____ degrees - (answers)150, 160
Fire will burn as fiercely in darkness as it did in the daytime as a result of ____ - (answers)wind
Define Temperature Inversion - (answers)In an inversion, cooler air is found nearer the surface,
with a warming trend at a higher altitude
Fires burning in the cooler environment of an ____ can be expected to subside, become dormant
and sluggish, as higher relative humidity and higher fuel moistures become available -
(answers)inversion
The most prominent danger period involving an inversion will occur at ____ - (answers)at the
point when sluggish lower elevation fire suddenly burns through the lid into the warmer air
above
Vertical air currents do not automatically develop in unstable air; some external force or lifting
action such as convection caused by surface heating or lifting over mountains ( ____ lifting)
must supply the initial motion - (answers)orographic
Decreasing temperature and increasing humidity of evening will cause a fire burning in a
wooded canyon to " ____" through the night - (answers)lay down
Fresh air is sucked toward the fire from a lower elevation or down along the canyon sides and the
sleeping fire bursts into new life with explosive speed and energy. This erratic fire behavior may
form a " ____" condition - (answers)Blow up
_____,which is simply water in a gaseous state,is a most important ingredient in weather -
(answers)Water vapor (relative humidity)
,The ____ is that temperature, at any given altitude, at which the air becomes completely
saturated. - (answers)dew point
The term ____ indicates the ratio of the amount of water vapor actually present to the maximum
amount that the air potentially could hold. - (answers)relative humidity
If relative humidity is ____ percent, the air is said to be completely saturated - (answers)100%
When the relative humidity descends below about ____, the situation is becoming favorable for
wildland fire. - (answers)30%
When humidity is 40% or more how is grass affected and how will it burn. - (answers)Grass is
affected quite readily and may not burn at all for an hour or so after the humidity changes.
If fuel and topographic conditions do not alter the result, it can be said that a strong wind in one
prevailing direction will cause a long wedge or ____ shaped burn - (answers)elliptical
Large bodies of water, such as the ocean and lakes, usually cause winds to blow ____ as the sun
warms the land area about midday. - (answers)inland
The ____ (general) winds blowing above the surface are the predominant element much of the
time - (answers)Gradient
____ fronts will often give visible evidence of their presence in the form of high cloud cover. As
these fronts pass over, there will usually be a marked increase in wind velocity followed by
abrupt ____ shift in direction from 45 to 180 degrees - (answers)Cold, clockwise
The one general statement that can be made regarding expected normal wind movement in the
mountains is that ____ winds will occur as the result of surface heating in the daytime and ____
winds will occur as the result of surface cooling at night. - (answers)upslope winds, downslope
winds
Air will flow upward on what slopes first as the sun rises - (answers)On the east facing slopes
first as the sun rises
The ____ winds that normally occur in the fall of the year have the most devastating and adverse
effect on fires - (answers)Foehn- characterized by blowing downhill while hugging the land
profile
Foehn winds are known as ____ winds in Northern CA, ____ winds in the Central Sierra and as
Santa Ana winds in Southern CA. Foehn winds are off shore winds and capable of reaching 80 to
90 mph - (answers)North, Mono
,Wind not only affects fire behavior, but creates related problems for firefighters. Perhaps the
most common is ____ - (answers)eye injury
Air tankers and helicopters lose effectiveness when wind speeds reach ____ - ____ mph -
(answers)20-30
Above ____ mph air tankers will normally be grounded due to their ineffectiveness and for
safety reasons. - (answers)30
Thunderhead cloud forms are sometimes known as - (answers)Anvil or Cauliflower
Small separate ____ cloud tufts or " ____" are called fair weather cumulus. - (answers)Cumulus,
Cottonballs
____ or moisture streamers beneath cumulus clouds are another visual warning that adverse
winds may soon be expected on the ground - (answers)Virga
____ are small whirlwinds that always indicate an unstable condition of the atmosphere with
readjustment soon to come. - (answers)Dust Devils
Dust Devils are more prevalent during what part of the day? - (answers)Most prevalent during
the midday when the sun has heated air near the ground to the point where expansion caused by
the heat is out of balance with the density of atmosphere above the ground
What are the three major factors influencing wildland fires? - (answers)Weather, Topography
and Fuel
Of the three major factors influencing wildland fire behavior- ____ is the most static,but quite
often the most dramatic in terms of fire behavior. - (answers)Topography
Generally winds blow up canyon during the ____ and ____ canyon at night - (answers)day,
down
Between the valley and canyon bottoms and the mountain tops and ridges is a thin topographic
area called the ____ - (answers)thermal belt
In what topographic area is fire conditions usually more severe than in any other area ? -
(answers)thermal belt
The degree of exposure is determined by the steepness of the slope in relation to the ____ of the
suns rays as they strike the earths surface. - (answers)angle
, In the northern hemisphere the suns rays strike most directly where on the mountain? -
(answers)They strike most directly upon a full southern exposure and therefore deliver more heat
to that exposure than to any other
Exposure is the lay of the land in relation to the sun. Climate and soil difference will produce a
heavier vegetation cover on the ____ slopes. - (answers)North
____ exposures are generally more prone to spotting - (answers)Southern
More fires have started and grown larger upon ____ slopes, especially in the hotter, drier
locations - (answers)south
The lighter, drier, flash fuel vegetation on the ____exposures burns more easily, more numerous
and larger fires also occur on the ____ exposures - (answers)south, southern
Northern exposures produce a far greater fire control problem than the southern exposures during
what time of the year. - (answers)Late in the fire season
To figure slope, what formula do you use? - (answers)Divide the horizontal distance into the
change in elevation
A 5% slope means a ____ foot rise in elevation for each ____ feet of horizontal distance -
(answers)5 foot , 100 feet
For every 20% increase in slope the given rate of spread of a fire will ____ - (answers)double
The changes in slope have a different effect on two methods of heat transfer : ____ and ____ -
(answers)convection and radiation
____ canyons normally have more independent wind currents - (answers)Narrow canyons
____ canyons due to relative distance and stronger more turbulent wind conditions, spotting is
more common - (answers)Narrow canyons
The steeper the slope, the more likely a fire will drive upward in a ____ shape, forming a ____ -
(answers)wedge shape, forming a narrow head
As a fire reaches a ridge top, it meets an opposing airflow (upslope) from the other side of the
ridge. The topography and opposing winds will cause ____and ____ - (answers)eddies,
turbulence
COMPLETE QUESTIONS WITH CORRECT DETAILED AND VERIFIED ANSWERS|
MOSTLY TESTED QUESTIONS-RATED 100% CORRECT!! GUARANTEED
PASS!!ALREADY GRADED A+
The range of ignition temperatures of wood is between ____and ____degrees Fahrenheit -
(answers)400 & 700
Normally the woody fuel of the wildland will burst into flame at approx. ____ degrees (
assuming sufficient 02 is present) - (answers)540
The highest temperature that the sun could be expected to develop on a wind sheltered surface is
____ or ____ degrees - (answers)150, 160
Fire will burn as fiercely in darkness as it did in the daytime as a result of ____ - (answers)wind
Define Temperature Inversion - (answers)In an inversion, cooler air is found nearer the surface,
with a warming trend at a higher altitude
Fires burning in the cooler environment of an ____ can be expected to subside, become dormant
and sluggish, as higher relative humidity and higher fuel moistures become available -
(answers)inversion
The most prominent danger period involving an inversion will occur at ____ - (answers)at the
point when sluggish lower elevation fire suddenly burns through the lid into the warmer air
above
Vertical air currents do not automatically develop in unstable air; some external force or lifting
action such as convection caused by surface heating or lifting over mountains ( ____ lifting)
must supply the initial motion - (answers)orographic
Decreasing temperature and increasing humidity of evening will cause a fire burning in a
wooded canyon to " ____" through the night - (answers)lay down
Fresh air is sucked toward the fire from a lower elevation or down along the canyon sides and the
sleeping fire bursts into new life with explosive speed and energy. This erratic fire behavior may
form a " ____" condition - (answers)Blow up
_____,which is simply water in a gaseous state,is a most important ingredient in weather -
(answers)Water vapor (relative humidity)
,The ____ is that temperature, at any given altitude, at which the air becomes completely
saturated. - (answers)dew point
The term ____ indicates the ratio of the amount of water vapor actually present to the maximum
amount that the air potentially could hold. - (answers)relative humidity
If relative humidity is ____ percent, the air is said to be completely saturated - (answers)100%
When the relative humidity descends below about ____, the situation is becoming favorable for
wildland fire. - (answers)30%
When humidity is 40% or more how is grass affected and how will it burn. - (answers)Grass is
affected quite readily and may not burn at all for an hour or so after the humidity changes.
If fuel and topographic conditions do not alter the result, it can be said that a strong wind in one
prevailing direction will cause a long wedge or ____ shaped burn - (answers)elliptical
Large bodies of water, such as the ocean and lakes, usually cause winds to blow ____ as the sun
warms the land area about midday. - (answers)inland
The ____ (general) winds blowing above the surface are the predominant element much of the
time - (answers)Gradient
____ fronts will often give visible evidence of their presence in the form of high cloud cover. As
these fronts pass over, there will usually be a marked increase in wind velocity followed by
abrupt ____ shift in direction from 45 to 180 degrees - (answers)Cold, clockwise
The one general statement that can be made regarding expected normal wind movement in the
mountains is that ____ winds will occur as the result of surface heating in the daytime and ____
winds will occur as the result of surface cooling at night. - (answers)upslope winds, downslope
winds
Air will flow upward on what slopes first as the sun rises - (answers)On the east facing slopes
first as the sun rises
The ____ winds that normally occur in the fall of the year have the most devastating and adverse
effect on fires - (answers)Foehn- characterized by blowing downhill while hugging the land
profile
Foehn winds are known as ____ winds in Northern CA, ____ winds in the Central Sierra and as
Santa Ana winds in Southern CA. Foehn winds are off shore winds and capable of reaching 80 to
90 mph - (answers)North, Mono
,Wind not only affects fire behavior, but creates related problems for firefighters. Perhaps the
most common is ____ - (answers)eye injury
Air tankers and helicopters lose effectiveness when wind speeds reach ____ - ____ mph -
(answers)20-30
Above ____ mph air tankers will normally be grounded due to their ineffectiveness and for
safety reasons. - (answers)30
Thunderhead cloud forms are sometimes known as - (answers)Anvil or Cauliflower
Small separate ____ cloud tufts or " ____" are called fair weather cumulus. - (answers)Cumulus,
Cottonballs
____ or moisture streamers beneath cumulus clouds are another visual warning that adverse
winds may soon be expected on the ground - (answers)Virga
____ are small whirlwinds that always indicate an unstable condition of the atmosphere with
readjustment soon to come. - (answers)Dust Devils
Dust Devils are more prevalent during what part of the day? - (answers)Most prevalent during
the midday when the sun has heated air near the ground to the point where expansion caused by
the heat is out of balance with the density of atmosphere above the ground
What are the three major factors influencing wildland fires? - (answers)Weather, Topography
and Fuel
Of the three major factors influencing wildland fire behavior- ____ is the most static,but quite
often the most dramatic in terms of fire behavior. - (answers)Topography
Generally winds blow up canyon during the ____ and ____ canyon at night - (answers)day,
down
Between the valley and canyon bottoms and the mountain tops and ridges is a thin topographic
area called the ____ - (answers)thermal belt
In what topographic area is fire conditions usually more severe than in any other area ? -
(answers)thermal belt
The degree of exposure is determined by the steepness of the slope in relation to the ____ of the
suns rays as they strike the earths surface. - (answers)angle
, In the northern hemisphere the suns rays strike most directly where on the mountain? -
(answers)They strike most directly upon a full southern exposure and therefore deliver more heat
to that exposure than to any other
Exposure is the lay of the land in relation to the sun. Climate and soil difference will produce a
heavier vegetation cover on the ____ slopes. - (answers)North
____ exposures are generally more prone to spotting - (answers)Southern
More fires have started and grown larger upon ____ slopes, especially in the hotter, drier
locations - (answers)south
The lighter, drier, flash fuel vegetation on the ____exposures burns more easily, more numerous
and larger fires also occur on the ____ exposures - (answers)south, southern
Northern exposures produce a far greater fire control problem than the southern exposures during
what time of the year. - (answers)Late in the fire season
To figure slope, what formula do you use? - (answers)Divide the horizontal distance into the
change in elevation
A 5% slope means a ____ foot rise in elevation for each ____ feet of horizontal distance -
(answers)5 foot , 100 feet
For every 20% increase in slope the given rate of spread of a fire will ____ - (answers)double
The changes in slope have a different effect on two methods of heat transfer : ____ and ____ -
(answers)convection and radiation
____ canyons normally have more independent wind currents - (answers)Narrow canyons
____ canyons due to relative distance and stronger more turbulent wind conditions, spotting is
more common - (answers)Narrow canyons
The steeper the slope, the more likely a fire will drive upward in a ____ shape, forming a ____ -
(answers)wedge shape, forming a narrow head
As a fire reaches a ridge top, it meets an opposing airflow (upslope) from the other side of the
ridge. The topography and opposing winds will cause ____and ____ - (answers)eddies,
turbulence
