S 190 COMPLETE STUDY GUIDE QUESTIONS
AND VERIFIED ANSWERS
●● Head of a fire
Answer: The side of the fire having the fastest rate of spread
●● Flank of a fire
Answer: The part of a fire's perimeter that is roughly parallel to the main
direction of spread.
●● Rear of a fire
Answer: Portion of a fire spreading directly into the wind or down slope.
Opposite the head. Slowest spreading portion of a fire edge. Also called
the heel
●● 3 main objectives to fight a fire
Answer: Anchor, Flank, Pinch
●● Fire perimeter
Answer: Entire outer edge of a fire
●● Fingers of a fire
,Answer: Long narrow extensions of a fire projecting from the main body
●● Pockets of a fire
Answer: Unburned indentations in the fire edge formed by fingers or
slow burning areas
●● Island
Answer: Area of unburned fuel inside the fire perimeter
●● Spot fire
Answer: Fire ignited outside the perimeter of the main fire by a fireband
●● Smoldering
Answer: Fire burning without flame and barely spreading
●● Creeping fire
Answer: Fire burning with a low flame and spreading slowly
●● Running fire
Answer: Behavior of a fire spreading rapidly with a well defined head
●● Spotting
, Answer: 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
●● Torching
Answer: The burning of foliage of a single tree or a small group of trees
from the bottom up
●● Crown fire
Answer: Fire that advances from top to top of trees or shrubs more or
less independent of surface fire. Sometimes classes as running or
dependent to distinguish the degree of independence from the surface
fire.
●● Flare up
Answer: Any sudden acceleration in the rate of spread or intensification.
Relatively short-duration. Junipers cause a lot of these.
●● Firewhirl
Answer: Spinning vortex column of ascending hot air and gases rising
from a fire and carrying aloft smoke, debris, and flame. Can move all
over and are unpredictable.
●● Backing fire
AND VERIFIED ANSWERS
●● Head of a fire
Answer: The side of the fire having the fastest rate of spread
●● Flank of a fire
Answer: The part of a fire's perimeter that is roughly parallel to the main
direction of spread.
●● Rear of a fire
Answer: Portion of a fire spreading directly into the wind or down slope.
Opposite the head. Slowest spreading portion of a fire edge. Also called
the heel
●● 3 main objectives to fight a fire
Answer: Anchor, Flank, Pinch
●● Fire perimeter
Answer: Entire outer edge of a fire
●● Fingers of a fire
,Answer: Long narrow extensions of a fire projecting from the main body
●● Pockets of a fire
Answer: Unburned indentations in the fire edge formed by fingers or
slow burning areas
●● Island
Answer: Area of unburned fuel inside the fire perimeter
●● Spot fire
Answer: Fire ignited outside the perimeter of the main fire by a fireband
●● Smoldering
Answer: Fire burning without flame and barely spreading
●● Creeping fire
Answer: Fire burning with a low flame and spreading slowly
●● Running fire
Answer: Behavior of a fire spreading rapidly with a well defined head
●● Spotting
, Answer: 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
●● Torching
Answer: The burning of foliage of a single tree or a small group of trees
from the bottom up
●● Crown fire
Answer: Fire that advances from top to top of trees or shrubs more or
less independent of surface fire. Sometimes classes as running or
dependent to distinguish the degree of independence from the surface
fire.
●● Flare up
Answer: Any sudden acceleration in the rate of spread or intensification.
Relatively short-duration. Junipers cause a lot of these.
●● Firewhirl
Answer: Spinning vortex column of ascending hot air and gases rising
from a fire and carrying aloft smoke, debris, and flame. Can move all
over and are unpredictable.
●● Backing fire
