WILDLAND FIRE S190 EXAM QUESTIONS AND ANSWERS (VERIFIED
Wildland Fire - S190
AND WELL DETAILED ANSWERS) LATEST UPDATE 2025/2026
Study online at https://quizlet.com/_hinpuu
1. 3 Sides of Fire Trian- Heat - Oxygen - Fuel
gle Without one!... Fire goes out!
2. 3 Methods of heat Radiation - Conduction - Convection
transfer
3. Head of Fire The part of a fire's perimeter that is roughly parallel to the main direction of
spread
4. Fingers of a fire Extension of main fire - the long narrow extensions of a fire projecting from the
main body
5. Spot Fire Beyond the main fire - Fire ignited outside the perimeter of the main fire by a
firebrand
6. Smoldering Fire burning without a flame and barely spreading
7. Creeping Fire Fire burning with a low flame and spreading slowly
8. Running Fire Behavior of a fire spreading rapidly with a well defined head
9. Controlled Fire can reasonably be expected to hold under the foreseeable conditions
10. South Facing Slope Will have more activity than a North facing slope.
11. Canyons Box Canyons & Narrow Canyons (Dangerous)
12. Narrow Canyons Fire can spread easily (in steep narrow canyon) to fuels on the opposite site by
radiation and spotting. Wind eddies and strong upslope air movement may be
expected at sharp bends
13. Barriers - Natural Rivers - Lakes - Rock - Slides-oceans-lava field
14. Barriers - Roads - Highways - Reservoirs - Fireline constructed by fire resources
Man-made
1/7
, Wildland Fire - S190
Study online at https://quizlet.com/_hinpuu
15. Fuel Types Grass - Grass Shrubs - Shrub - Timber Understory - Timber Litter - Slash
Blowdown
16. Fine Fuels Grass - Grass Shrubs - Easier to burn
17. Horizontal Continu- Uniform Fuels and Patchy Fuels
ity
18. Uniform Fuels All fuels distributed continuously over the area
19. Patchy Fuels Patches of rock outcroppings - Bare ground - Areas where another dominant
type of fuel is much less flammable
20. Ladder Fuels Combustible materials that aid the spread of fire from the surface to the upper
canopy
21. Fuel Moisture The amount of water in a fuel, expressed as a percentage of the oven-dry weight
of that fuel
22. Control vs. contain- control-
ment crews begin mop up
anchor point is established
fire is expected to hold in the conditions
fireline all around fire
containment-
when a fire is encircled by a fireline but not under control
23. what do prior burns slows down the spread of fire
do?
24. fuel ladder
25.
2/7
Wildland Fire - S190
AND WELL DETAILED ANSWERS) LATEST UPDATE 2025/2026
Study online at https://quizlet.com/_hinpuu
1. 3 Sides of Fire Trian- Heat - Oxygen - Fuel
gle Without one!... Fire goes out!
2. 3 Methods of heat Radiation - Conduction - Convection
transfer
3. Head of Fire The part of a fire's perimeter that is roughly parallel to the main direction of
spread
4. Fingers of a fire Extension of main fire - the long narrow extensions of a fire projecting from the
main body
5. Spot Fire Beyond the main fire - Fire ignited outside the perimeter of the main fire by a
firebrand
6. Smoldering Fire burning without a flame and barely spreading
7. Creeping Fire Fire burning with a low flame and spreading slowly
8. Running Fire Behavior of a fire spreading rapidly with a well defined head
9. Controlled Fire can reasonably be expected to hold under the foreseeable conditions
10. South Facing Slope Will have more activity than a North facing slope.
11. Canyons Box Canyons & Narrow Canyons (Dangerous)
12. Narrow Canyons Fire can spread easily (in steep narrow canyon) to fuels on the opposite site by
radiation and spotting. Wind eddies and strong upslope air movement may be
expected at sharp bends
13. Barriers - Natural Rivers - Lakes - Rock - Slides-oceans-lava field
14. Barriers - Roads - Highways - Reservoirs - Fireline constructed by fire resources
Man-made
1/7
, Wildland Fire - S190
Study online at https://quizlet.com/_hinpuu
15. Fuel Types Grass - Grass Shrubs - Shrub - Timber Understory - Timber Litter - Slash
Blowdown
16. Fine Fuels Grass - Grass Shrubs - Easier to burn
17. Horizontal Continu- Uniform Fuels and Patchy Fuels
ity
18. Uniform Fuels All fuels distributed continuously over the area
19. Patchy Fuels Patches of rock outcroppings - Bare ground - Areas where another dominant
type of fuel is much less flammable
20. Ladder Fuels Combustible materials that aid the spread of fire from the surface to the upper
canopy
21. Fuel Moisture The amount of water in a fuel, expressed as a percentage of the oven-dry weight
of that fuel
22. Control vs. contain- control-
ment crews begin mop up
anchor point is established
fire is expected to hold in the conditions
fireline all around fire
containment-
when a fire is encircled by a fireline but not under control
23. what do prior burns slows down the spread of fire
do?
24. fuel ladder
25.
2/7
