S-290 FINAL TEST 2026 QUESTIONS WITH CORRECT
ANSWERS GRADED A+
● T/F Topography can directly and indirectly affect fuels and their availability for
combustion. Answer: True
● Of the three environmental factors that influence fire behavior, which is the least
variable. Answer: topography
● What are the 3 Environmental Factors that influence Fire Behavior?. Answer: 1)
Weather 2) Topography 3) Fuels
● The least critical form of heat transfer that influences rate of spread in a running
wildland 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
● What factors primarily affect fireline intensity?. Answer: Fuel size Fuel moisture Fuel
temperature Fuel compactness and arrangement ALL OF THE ABOVE
● 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
● T/F Upward moving air contracts and warms. Answer: False
● As air sinks it. Answer: Increases in pressure, warms and compresses
● Foehn winds can adversely affect wildland fires because they can produce. Answer:
Strong winds, warmer temperatures, and very low relative humidity
, ● When stable air is forced over a mountain range, and then descends the leeward
slope as dry, warmed air, it is called. Answer: A foehn Wind (look this up)
● T/F Bends in canyons are likely places for eddies to form. Answer: True
● Local winds are best described as. Answer: Small scale convective winds of local origin
caused by differences in heating and cooling
● East, Mono, Santa Ana, and Chinook are all examples of
________________________.. Answer: Foehn Winds
● T/F Air flows clockwise around low pressure systems and counterclockwise around
high pressure systems. Answer: False. Counterclockwise in Low Pressures Clockwise in
High Pressures
● T/F Unstable air can often be found in low pressure systems and on leading edge of
cold fronts. Answer: True
● T/F Unstable air can be formed by either heating the air near the ground or by cooling
the air aloft. Answer: True
● How is wind direction described?. Answer: Wind direction is named by the direction wind
is blowing FROM
● A slope wind is caused by. Answer: Warm air rising and cold air settling
● Stable/Unstable; Gusty winds. Answer: Unstable
● Stable/Unstable; Smoke column spreads out after limited rise. Answer: Stable
● Stable/Unstable Clouds grow vertically. Answer: Unstable
● Stable/Unstable Fire brands are lifted into convection column. Answer: Unstable
● When comparing pressure, The pressure at higher altitudes is ____________ than it
is at lower altitudes. Answer: Lower
● Temperature decreases with an increase in elevation when an inversion is present.
Answer: False. Temperatures increase with elevation during an inversion.
● What is the general effect of stable air on wildland fires. Answer: Fire activity decreases
● What columns will occur under a surface inversion during the morning hours.
Answer: Temperatures are cool, winds are calm or light Fire activity is decreased Pollutants
ANSWERS GRADED A+
● T/F Topography can directly and indirectly affect fuels and their availability for
combustion. Answer: True
● Of the three environmental factors that influence fire behavior, which is the least
variable. Answer: topography
● What are the 3 Environmental Factors that influence Fire Behavior?. Answer: 1)
Weather 2) Topography 3) Fuels
● The least critical form of heat transfer that influences rate of spread in a running
wildland 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
● What factors primarily affect fireline intensity?. Answer: Fuel size Fuel moisture Fuel
temperature Fuel compactness and arrangement ALL OF THE ABOVE
● 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
● T/F Upward moving air contracts and warms. Answer: False
● As air sinks it. Answer: Increases in pressure, warms and compresses
● Foehn winds can adversely affect wildland fires because they can produce. Answer:
Strong winds, warmer temperatures, and very low relative humidity
, ● When stable air is forced over a mountain range, and then descends the leeward
slope as dry, warmed air, it is called. Answer: A foehn Wind (look this up)
● T/F Bends in canyons are likely places for eddies to form. Answer: True
● Local winds are best described as. Answer: Small scale convective winds of local origin
caused by differences in heating and cooling
● East, Mono, Santa Ana, and Chinook are all examples of
________________________.. Answer: Foehn Winds
● T/F Air flows clockwise around low pressure systems and counterclockwise around
high pressure systems. Answer: False. Counterclockwise in Low Pressures Clockwise in
High Pressures
● T/F Unstable air can often be found in low pressure systems and on leading edge of
cold fronts. Answer: True
● T/F Unstable air can be formed by either heating the air near the ground or by cooling
the air aloft. Answer: True
● How is wind direction described?. Answer: Wind direction is named by the direction wind
is blowing FROM
● A slope wind is caused by. Answer: Warm air rising and cold air settling
● Stable/Unstable; Gusty winds. Answer: Unstable
● Stable/Unstable; Smoke column spreads out after limited rise. Answer: Stable
● Stable/Unstable Clouds grow vertically. Answer: Unstable
● Stable/Unstable Fire brands are lifted into convection column. Answer: Unstable
● When comparing pressure, The pressure at higher altitudes is ____________ than it
is at lower altitudes. Answer: Lower
● Temperature decreases with an increase in elevation when an inversion is present.
Answer: False. Temperatures increase with elevation during an inversion.
● What is the general effect of stable air on wildland fires. Answer: Fire activity decreases
● What columns will occur under a surface inversion during the morning hours.
Answer: Temperatures are cool, winds are calm or light Fire activity is decreased Pollutants
