S 290 INTERMEDIATE WILDLAND FIRE BEHAVIOUR
EXAM ( TESTED AND VERIFIED ) ALREADY RATED
A+/ GUARANTEED PASS
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
EXAM ( TESTED AND VERIFIED ) ALREADY RATED
A+/ GUARANTEED PASS
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
