S-290 Exam Bank Solution Manual Already Passed
Name the 5 weather factors that effect fire behavior. (WARPT) - Answers Windspeed and direction
Atmospheric stability
Relative Humidity
Precipitation
Temperature
Name the 7 fuel factors that effect fire behavior - Answers Fuel loading
Size and ...
Name the 5 weather factors that effect fire behavior. (WARPT) - Answers Windspeed and direction
Atmospheric stability
Relative Humidity
Precipitation
Temperature
Name the 7 fuel factors that effect fire behavior - Answers Fuel loading
Size and shape
Compactness
Horizontal continuity
Vertical continuity
Chemical content
Fuel moisture and Fuel temperature
Which of the three components of fire enviornment, changes most rapidly over time and space? -
Answers Weather
Which of the three components of the fire enviornment is the least variable? - Answers Topography
Which fuel characteristics vary rapidly over time and space? - Answers Fuel moisture and Fuel
temperature
The form of heat transfer that has the most influence on the rate of spread in a ground fire is... -
Answers Conduction
These fires are difficult to extinguish and have smoldering or creeping fire behavior - Answers Ground
Fires
What form of heat transfer has the most influence on rate of spread in a backing fire? - Answers
Radiation
3 ways convection energy can spread a fire - Answers 1. Cause spot fires
2. Preheat fuels through air and increased direct flame contact
3. Increase the amount of oxygen introduced on a fire
, What form of heat transfer has the most influence on tree limbs - Answers Convection
List three forms of mass transport of firebrands on wildland fires - Answers 1. Convection
2. Wind
3. Gravity
Give 3 examples of fire brands affected by gravity - Answers 1. pine cones
2. yuccas
3. logs
Three requirements for long range spotting - Answers 1. Strong convective influence to create fire
brands
2. High winds to spread the fire brands
3. A receptive fuel bed
Define Flamelength - Answers The distant measured from the tip of the flame to the middle of the
flaming zone at base of fire.
Where do fire behavior predictions describe the average flame length? - Answers Head of the
fire/flamefront
Flame length is a visual indicator of - Answers Fireline intensity/ BTU per foot per second
6 Primary fuel factors that affect ignition of a wildland fire - Answers 1. moisture
2. size and
3. shape
4. arrangement
5. compactness
6. temperature
BTU per foot per second, rate of energy release, indicated by flame length, and represents the ead
output at the flame front is.... - Answers Fireline Inensity
A chain is - Answers 66 feet
1 Mile equals how many chains - Answers 80 chains
How many square chains in an acre - Answers 10 sq. chains
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