S-290 PRACTICE EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
● Wildland fire behavior. Answer: the manner in which fuels ignite, flames develop, and fire
spreads and exhibits other characteristics
● 3 components of the fire environment. Answer: weather, topography, and fuels
● 3 component so of the fire triangle. Answer: heat, oxygen, fuel
● Elements of weather that influence fire behavior. Answer: Temperature Relative
humidity Atmospheric stability Wind speed and direction Precipitation
● Elements of topography that influence fire behavior. Answer: Elevation Position on
slope Aspect Shape of the terrain Steepness of slope
● Elements of fuel that influence fire behavior. Answer: Fuel loading Size and shape
Compactness Horizontal continuity Vertical continuity Chemical content Fuel moisture and
temperature
● Ignition temperature. Answer: The temperature a material must attain to produce
self-sustaining combustion (600o for wildland fuels)
● Primary factors affecting ignition. Answer: Size and shape of fuels Compactness or
arrangement of fuels Fuel moisture content Fuel temperature
● Heat transfer. Answer: The physical processes by which heat energy moves to and
through unburned fuel Preheat fuel prior to ignition, thus contributing to fire spread
● Conduction. Answer: The transfer of heat from one molecule of matter to another (direct
contact)
● Convection. Answer: The transfer of heat by the motion of air (or any other fluid)
● Radiation. Answer: The transmission of heat energy by electromagnetic waves passing
from a heat source to an absorbing material
● Fireline intensity. Answer: The rate of heat released during combustion per foot of fire
front, the heat that a firefighter would feel at the fire's flaming front (Btu/feet (ft)/second)
ANSWERS GRADED A+
● Wildland fire behavior. Answer: the manner in which fuels ignite, flames develop, and fire
spreads and exhibits other characteristics
● 3 components of the fire environment. Answer: weather, topography, and fuels
● 3 component so of the fire triangle. Answer: heat, oxygen, fuel
● Elements of weather that influence fire behavior. Answer: Temperature Relative
humidity Atmospheric stability Wind speed and direction Precipitation
● Elements of topography that influence fire behavior. Answer: Elevation Position on
slope Aspect Shape of the terrain Steepness of slope
● Elements of fuel that influence fire behavior. Answer: Fuel loading Size and shape
Compactness Horizontal continuity Vertical continuity Chemical content Fuel moisture and
temperature
● Ignition temperature. Answer: The temperature a material must attain to produce
self-sustaining combustion (600o for wildland fuels)
● Primary factors affecting ignition. Answer: Size and shape of fuels Compactness or
arrangement of fuels Fuel moisture content Fuel temperature
● Heat transfer. Answer: The physical processes by which heat energy moves to and
through unburned fuel Preheat fuel prior to ignition, thus contributing to fire spread
● Conduction. Answer: The transfer of heat from one molecule of matter to another (direct
contact)
● Convection. Answer: The transfer of heat by the motion of air (or any other fluid)
● Radiation. Answer: The transmission of heat energy by electromagnetic waves passing
from a heat source to an absorbing material
● Fireline intensity. Answer: The rate of heat released during combustion per foot of fire
front, the heat that a firefighter would feel at the fire's flaming front (Btu/feet (ft)/second)
