S-190 Intro to Wildland Fire Behavior Exam 200Q Practice
Questions with Verified Answers, Wildfire Fundamentals,
Fuels, Weather, Topography, Heat Transfer, Fire Spread,
and Study Guide for Fire Students
1. Which three factors primarily affect wildland fire behavior?
A. Fuels, weather, and topography
B. Oxygen, water, and ash
C. Smoke, ash, and carbon dioxide
D. Rain, snow, and hail
Correct answer: A.
These are the main elements that influence how a wildland fire starts and spreads.
2. Which part of the fire triangle represents something that supports combustion?
A. Heat
B. Fuel
C. Oxygen
D. All of the above
Correct answer: D.
Fire needs heat, fuel, and oxygen to continue burning.
3. What is fuel in wildland fire behavior?
A. Only gasoline
, B. Anything that can burn
C. Only trees
D. Only dry grass
Correct answer: B.
Fuel includes any combustible material such as grass, brush, wood, or litter.
4. Which fuel is most likely to ignite quickly?
A. Large logs
B. Green vegetation
C. Fine, dry grasses
D. Wet leaves
Correct answer: C.
Fine fuels ignite more easily because they dry and heat up quickly.
5. What is the most important factor affecting fuel moisture?
A. Air temperature
B. Color of vegetation
C. Elevation only
D. Moon phase
Correct answer: A.
Temperature strongly affects how quickly fuels dry out.
,6. Relative humidity is best described as:
A. The amount of moisture in the air compared with the maximum it can hold at the same
temperature
B. The amount of rain in a day
C. The amount of water in soil only
D. The speed of the wind
Correct answer: A.
Relative humidity shows how close the air is to saturation.
7. When is relative humidity typically lowest during the day?
A. Early morning
B. Mid to late afternoon
C. Midnight
D. During rainfall
Correct answer: B.
As temperature rises during the day, relative humidity usually drops.
8. Which weather factor has the greatest effect on fire spread?
A. Wind
B. Cloud shape
C. Dew point only
D. Moonlight
, Correct answer: A.
Wind pushes flames and carries heat to new fuels.
9. Which is a process of heat transfer where heated air rises and can carry fire brands?
A. Conduction
B. Convection
C. Radiation
D. Compression
Correct answer: B.
Convection moves heat upward through rising air.
10. Which process of heat transfer moves heat through direct contact?
A. Radiation
B. Convection
C. Conduction
D. Evaporation
Correct answer: C.
Conduction transfers heat from one object to another through touching.
11. Which process of heat transfer can dry nearby fuels and preheat them without direct
contact?
A. Radiation
B. Conduction
Questions with Verified Answers, Wildfire Fundamentals,
Fuels, Weather, Topography, Heat Transfer, Fire Spread,
and Study Guide for Fire Students
1. Which three factors primarily affect wildland fire behavior?
A. Fuels, weather, and topography
B. Oxygen, water, and ash
C. Smoke, ash, and carbon dioxide
D. Rain, snow, and hail
Correct answer: A.
These are the main elements that influence how a wildland fire starts and spreads.
2. Which part of the fire triangle represents something that supports combustion?
A. Heat
B. Fuel
C. Oxygen
D. All of the above
Correct answer: D.
Fire needs heat, fuel, and oxygen to continue burning.
3. What is fuel in wildland fire behavior?
A. Only gasoline
, B. Anything that can burn
C. Only trees
D. Only dry grass
Correct answer: B.
Fuel includes any combustible material such as grass, brush, wood, or litter.
4. Which fuel is most likely to ignite quickly?
A. Large logs
B. Green vegetation
C. Fine, dry grasses
D. Wet leaves
Correct answer: C.
Fine fuels ignite more easily because they dry and heat up quickly.
5. What is the most important factor affecting fuel moisture?
A. Air temperature
B. Color of vegetation
C. Elevation only
D. Moon phase
Correct answer: A.
Temperature strongly affects how quickly fuels dry out.
,6. Relative humidity is best described as:
A. The amount of moisture in the air compared with the maximum it can hold at the same
temperature
B. The amount of rain in a day
C. The amount of water in soil only
D. The speed of the wind
Correct answer: A.
Relative humidity shows how close the air is to saturation.
7. When is relative humidity typically lowest during the day?
A. Early morning
B. Mid to late afternoon
C. Midnight
D. During rainfall
Correct answer: B.
As temperature rises during the day, relative humidity usually drops.
8. Which weather factor has the greatest effect on fire spread?
A. Wind
B. Cloud shape
C. Dew point only
D. Moonlight
, Correct answer: A.
Wind pushes flames and carries heat to new fuels.
9. Which is a process of heat transfer where heated air rises and can carry fire brands?
A. Conduction
B. Convection
C. Radiation
D. Compression
Correct answer: B.
Convection moves heat upward through rising air.
10. Which process of heat transfer moves heat through direct contact?
A. Radiation
B. Convection
C. Conduction
D. Evaporation
Correct answer: C.
Conduction transfers heat from one object to another through touching.
11. Which process of heat transfer can dry nearby fuels and preheat them without direct
contact?
A. Radiation
B. Conduction
