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S 190 INTRODUCTION TO WILDLAND FIRE BEHAVIOR
EXAM 2025 | ALL QUESTIONS AND CORRECT
ANSWERS (ALREADY GRADED A+) | VERIFIED
ANSWERS | LATEST VERSION
parts of a fire - (answers)point of origin, head, flank, rear, perimeter, fingers,
pockets, island, spot fire
point of origin - (answers)the start
the precise location where a competent ignition source came into contact with
the material first ignited and sustained combustion occurred
usually rear & upwind
head of a fire - (answers)the side of fire having the fastest rate of speed
most intensity
downwind
flank of a fire - (answers)the part of a fire's perimeter that is roughly parallel to
the main direction of spread
lower flame, greatest variability
where most fire is fought
rear of a fire - (answers)• that portion of a fire spreading directly into the wind or
down slope
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• that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
fire perimeter - (answers)the entire outer edge or boundary of a fire
fingers of a fire - (answers)the long narrow extensions of a fire projecting from
the main body
from shifting of winds
pockets of a fire - (answers)unburned indentations in the fire edge formed by
fingers or slow burning areas
island - (answers)or long ribbons
safety hazard
area of unburned fuel or just got a surface burn inside the fire perimeter
spot fire - (answers)fire ignited outside the perimeter of the main fire by a
firebrand
raining embers
fire behavior terms - (answers)smoldering, creeping, running, spotting, torching,
crown, flare up, firewhirl, backing, flaming front,
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smoldering fire - (answers)fire burning without flame and barely spreading
creeping fire - (answers)fire burning with a low flame and spreading slowly;
timber litter or short grass
running fire - (answers)fire spreading rapidly with a well defined head
spotting fire - (answers)behavior of a fire producing sparks or embers that are
carried by the wind and which start new fires beyond the zone of direct ignition
by the main fire; snags produce column of air
torching fire - (answers)the burning of the foliage of a single tree or a small group
of trees, from the bottom up
crown fire - (answers)a fire that advances from top to top of trees or shrubs more
or less independent of a surface fire. crown fires are sometimes classed as
running or dependent to distinguish the degree of independence from the surface
fire; mostly in pine, spruce, gamble oak
flare up - (answers)any sudden acceleration in the rate of spread or intensification
of the fire. unlike blowup, a flare-up is of relativity short duration and does not
change existing control plans
S 190 INTRODUCTION TO WILDLAND FIRE BEHAVIOR
EXAM 2025 | ALL QUESTIONS AND CORRECT
ANSWERS (ALREADY GRADED A+) | VERIFIED
ANSWERS | LATEST VERSION
parts of a fire - (answers)point of origin, head, flank, rear, perimeter, fingers,
pockets, island, spot fire
point of origin - (answers)the start
the precise location where a competent ignition source came into contact with
the material first ignited and sustained combustion occurred
usually rear & upwind
head of a fire - (answers)the side of fire having the fastest rate of speed
most intensity
downwind
flank of a fire - (answers)the part of a fire's perimeter that is roughly parallel to
the main direction of spread
lower flame, greatest variability
where most fire is fought
rear of a fire - (answers)• that portion of a fire spreading directly into the wind or
down slope
,2|Page
• that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
fire perimeter - (answers)the entire outer edge or boundary of a fire
fingers of a fire - (answers)the long narrow extensions of a fire projecting from
the main body
from shifting of winds
pockets of a fire - (answers)unburned indentations in the fire edge formed by
fingers or slow burning areas
island - (answers)or long ribbons
safety hazard
area of unburned fuel or just got a surface burn inside the fire perimeter
spot fire - (answers)fire ignited outside the perimeter of the main fire by a
firebrand
raining embers
fire behavior terms - (answers)smoldering, creeping, running, spotting, torching,
crown, flare up, firewhirl, backing, flaming front,
, 3|Page
smoldering fire - (answers)fire burning without flame and barely spreading
creeping fire - (answers)fire burning with a low flame and spreading slowly;
timber litter or short grass
running fire - (answers)fire spreading rapidly with a well defined head
spotting fire - (answers)behavior of a fire producing sparks or embers that are
carried by the wind and which start new fires beyond the zone of direct ignition
by the main fire; snags produce column of air
torching fire - (answers)the burning of the foliage of a single tree or a small group
of trees, from the bottom up
crown fire - (answers)a fire that advances from top to top of trees or shrubs more
or less independent of a surface fire. crown fires are sometimes classed as
running or dependent to distinguish the degree of independence from the surface
fire; mostly in pine, spruce, gamble oak
flare up - (answers)any sudden acceleration in the rate of spread or intensification
of the fire. unlike blowup, a flare-up is of relativity short duration and does not
change existing control plans
