EAPS 106 EXAM 3 PURDUE QUESTIONS
AND ANSWERS GRADED A+ 2025/2026
What causes more wildfires, human or lightning? - ANS Humans
Which factors strongly influence the potential for wildfires to start? - ANS How easily/fast the
material burns
-Vegetarion
-Topography
-Weather
Surface fires - ANS Involves grasses, pine needles, shrubs. These fuels burn easier because
they have a high surface area to volume ratio.
crown fires - ANS those in which flames reach the canopies of trees where the fine branches
and needles can burn very rapidly.
- Hottest/Fastest moving
-Extremely difficult to fight
The three stages of a wildfire. - ANS Preignition: Heat of fuels causes loss of moisture.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Combustion: Hotter temperatures cause fuels to release with oxygen in a chemical reaction that
releases more heat.
Smoldering: Ash cover leads to slow, low temperature burning and inhibits new fuels from
lighting.
Which wildfire was the largest to occur in United States history. - ANS The Great Fire of 1910:
-Burned 3 million acres in the northwest in 2 days.
The original and current policies of the U.S. Forest Service regarding fighting wildfires. -
ANS Shifted from fighting fires from suspension to migration
- Permits wildfires to burn in wilderness areas
- Only fight fires that endanger people or important structures
The benefits of forest and grassland wildfires. - ANS Improvement of natural ecosystem and
wildlife habitat
- Grasses are able to survive fire because they can regrow from the roots, while trees and
shrubs cannot
- Lodgepole pines reestablish themselves amongst still standing trees. Fire is required for
pinecones to germinate.
The difference between a fire weather watch and a fire weather warning. - ANS - Fire Watch:
Potentially dangerous fire weather conditions are possible for next 12-72 hours.
- Fire Warning: Wildfires are happening or will happen within 24 hours.
Good wildfire safety practices at home and while camping. - ANS - Hose nearby
- Chimney cleaned and screened
- Wood pile and fuel tanks 30 feet from structure.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS GRADED A+ 2025/2026
What causes more wildfires, human or lightning? - ANS Humans
Which factors strongly influence the potential for wildfires to start? - ANS How easily/fast the
material burns
-Vegetarion
-Topography
-Weather
Surface fires - ANS Involves grasses, pine needles, shrubs. These fuels burn easier because
they have a high surface area to volume ratio.
crown fires - ANS those in which flames reach the canopies of trees where the fine branches
and needles can burn very rapidly.
- Hottest/Fastest moving
-Extremely difficult to fight
The three stages of a wildfire. - ANS Preignition: Heat of fuels causes loss of moisture.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Combustion: Hotter temperatures cause fuels to release with oxygen in a chemical reaction that
releases more heat.
Smoldering: Ash cover leads to slow, low temperature burning and inhibits new fuels from
lighting.
Which wildfire was the largest to occur in United States history. - ANS The Great Fire of 1910:
-Burned 3 million acres in the northwest in 2 days.
The original and current policies of the U.S. Forest Service regarding fighting wildfires. -
ANS Shifted from fighting fires from suspension to migration
- Permits wildfires to burn in wilderness areas
- Only fight fires that endanger people or important structures
The benefits of forest and grassland wildfires. - ANS Improvement of natural ecosystem and
wildlife habitat
- Grasses are able to survive fire because they can regrow from the roots, while trees and
shrubs cannot
- Lodgepole pines reestablish themselves amongst still standing trees. Fire is required for
pinecones to germinate.
The difference between a fire weather watch and a fire weather warning. - ANS - Fire Watch:
Potentially dangerous fire weather conditions are possible for next 12-72 hours.
- Fire Warning: Wildfires are happening or will happen within 24 hours.
Good wildfire safety practices at home and while camping. - ANS - Hose nearby
- Chimney cleaned and screened
- Wood pile and fuel tanks 30 feet from structure.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
