S-290 Unit 1 Questions and Answers Fully Solved

S-290 Unit 1

Which of the following make up the three components of the wild land fire environment?
-ignition, intensity, spread
-spread, weather, heat
-fuels, topography, weather
-heat, oxygen, fuels - answer fuels, topography, weather.

Which of the following heat transfer mechanisms are important to wildfire behavior?
-ignition, conduction, turbulence
-turbulence, radiation, molecular
-conduction, convection, radiation
-convection, turbulence, fire - answer conduction, convection, radiation.

The three primary methods of transport of firebrands on wild land fire are _____.
-rolling, dropping, and running
-snags, pine cones, and needles
-torching, crowning, and wind
-convection, wind, and gravity - answer convection, wind, and gravity.

In a high wind situation, the flames of a wildfire will bend away from the direction of the
wind and the flame height will be different from the flame length. Which is used to
describe the fireline intensity?
-flame size
-flame intensity
-flame height
-flame length - answerflame length.

Which are the primary environmental factors affecting ignition?
-Weather
-Fuels
-Topography - answerWeather
Fuels
Topography

Which are the primary environmental factors affecting intensity?
-Topography
-Fuels
-Weather - answerTopography
Weather
Fuels

Which are the primary environmental factors affecting rate of spread?