2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
S-190 Intro to Wildland Fire Behavior
Questions & 100% Correct Answers- Latest
Test | Graded A+ | Passed
The precise location where a competent ignition source came into contact with the
material first ignited and sustained combustion occurred.
✓ -:- Point of Origin
The side of the fire having the fastest rate of spread
✓ -:- Head of a fire
The part of a fire's perimeter that is roughly parallel to the main direction of fire spread.
✓ -:- Flank of a fire
That portion of a fire edge opposite the head.
✓ -:- Rear of the fire
That portion of a fire spreading directly into the wind or down slope.
✓ -:- Rear of the fire
The slowest spreading portion of a fire edge. Also called the heel of a fire.
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Rear of the fire
The entire outer edge or boundary of the fire
✓ -:- Fire Perimeter
The long narrow extensions of a fire projecting from the main body
✓ -:- Fingers of fire
Unburned indentations in the fire edge formed by fingers or slow burning areas
✓ -:- Pockets of a fire
Area of unburned fuel inside the fire perimeter
✓ -:- Island
Fire ignited outside the perimeter of the main fire by fire brand
✓ -:- Spot fire
Fire burning without flame and barely spreading
✓ -:- Smoldering
2|Page | Grade A+| 2024/2025
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Fire burning with a low flame and spreading slowly
✓ -:- Creeping fire
Behavior of a fire spreading rapidly with a well defined head
✓ -:- Running fire
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
✓ -:- Spotting
The burning of the foliage of a single tree or a small group of trees, from the bottom up.
✓ -:- Torching
A fire that advances from top to top of trees shrubs more or less independent of a surface
fire.
✓ -:- Crown Fires
Any sudden acceleration in the rate of spread or intensification of the fire. Of relatively
short duration and does not change existing control patterns.
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Flare up
Spinning vortex column of ascending hot air and gases rising from a fire and carrying aloft
smoke, debris, and flame. These range in size from less than one foot to over 500 feet in
diameter. Have the intensity of a small tornado.
✓ -:- Firewhirl
That portion of the fire with slower rates of fire spread and lower intensity, normally
moving into the wind and/or down slope.
✓ -:- Backing fire
That zone of a moving fire where combustion is primarily flaming. Is shallower in light fuels
and deeper in heavy fuels
✓ -:- Flaming Front
An advantageous location, usually a barrier to fire spread, from which to start constructing
a fireline. this location is used to minimize the chance of being flanked by the fire while the
line is being constructed
✓ -:- Anchor point
4|Page | Grade A+| 2024/2025
S-190 Intro to Wildland Fire Behavior
Questions & 100% Correct Answers- Latest
Test | Graded A+ | Passed
The precise location where a competent ignition source came into contact with the
material first ignited and sustained combustion occurred.
✓ -:- Point of Origin
The side of the fire having the fastest rate of spread
✓ -:- Head of a fire
The part of a fire's perimeter that is roughly parallel to the main direction of fire spread.
✓ -:- Flank of a fire
That portion of a fire edge opposite the head.
✓ -:- Rear of the fire
That portion of a fire spreading directly into the wind or down slope.
✓ -:- Rear of the fire
The slowest spreading portion of a fire edge. Also called the heel of a fire.
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Rear of the fire
The entire outer edge or boundary of the fire
✓ -:- Fire Perimeter
The long narrow extensions of a fire projecting from the main body
✓ -:- Fingers of fire
Unburned indentations in the fire edge formed by fingers or slow burning areas
✓ -:- Pockets of a fire
Area of unburned fuel inside the fire perimeter
✓ -:- Island
Fire ignited outside the perimeter of the main fire by fire brand
✓ -:- Spot fire
Fire burning without flame and barely spreading
✓ -:- Smoldering
2|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
Fire burning with a low flame and spreading slowly
✓ -:- Creeping fire
Behavior of a fire spreading rapidly with a well defined head
✓ -:- Running fire
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
✓ -:- Spotting
The burning of the foliage of a single tree or a small group of trees, from the bottom up.
✓ -:- Torching
A fire that advances from top to top of trees shrubs more or less independent of a surface
fire.
✓ -:- Crown Fires
Any sudden acceleration in the rate of spread or intensification of the fire. Of relatively
short duration and does not change existing control patterns.
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Flare up
Spinning vortex column of ascending hot air and gases rising from a fire and carrying aloft
smoke, debris, and flame. These range in size from less than one foot to over 500 feet in
diameter. Have the intensity of a small tornado.
✓ -:- Firewhirl
That portion of the fire with slower rates of fire spread and lower intensity, normally
moving into the wind and/or down slope.
✓ -:- Backing fire
That zone of a moving fire where combustion is primarily flaming. Is shallower in light fuels
and deeper in heavy fuels
✓ -:- Flaming Front
An advantageous location, usually a barrier to fire spread, from which to start constructing
a fireline. this location is used to minimize the chance of being flanked by the fire while the
line is being constructed
✓ -:- Anchor point
4|Page | Grade A+| 2024/2025
