S-190 INTRO TO WILDLAND FIRE
BEHAVIOR EXAM 2025 QUESTIONS
AND ANSWERS
When is a fire controlled? - ANS when control lines can reasonably be expected to hold
under the forseesable conditions
pg. 1.9
What are the components of the fire triangle? - ANS 1) Fuel: to burn
2) Air: oxygen for flame
3) Heat: to start and continue combustion process.
*remove any single one, there can be no fire*
pg. 1.10
What are the 3 processes of heat transfer, which is most important? - ANS 1) Radiation: dries
surrounding fuels and sometimes ignites them
2) Convection: occurs when lighter warm air moves upward
3) Conduction: heat transferred by from one fuel particle to another
* convection is the most important while conduction is least important because of woods low
conduction rate*
Spotting - ANS process of convection starting new fires beyond the zone of direct ignition by
main fire
pg. 1.6
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 1
BEHAVIOR EXAM 2025 QUESTIONS
AND ANSWERS
When is a fire controlled? - ANS when control lines can reasonably be expected to hold
under the forseesable conditions
pg. 1.9
What are the components of the fire triangle? - ANS 1) Fuel: to burn
2) Air: oxygen for flame
3) Heat: to start and continue combustion process.
*remove any single one, there can be no fire*
pg. 1.10
What are the 3 processes of heat transfer, which is most important? - ANS 1) Radiation: dries
surrounding fuels and sometimes ignites them
2) Convection: occurs when lighter warm air moves upward
3) Conduction: heat transferred by from one fuel particle to another
* convection is the most important while conduction is least important because of woods low
conduction rate*
Spotting - ANS process of convection starting new fires beyond the zone of direct ignition by
main fire
pg. 1.6
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 1
