Wildland Firefighting Flashcards
How much radiant heat do Fire Shelters reflect
95%
Deploy Fire Shelters in ___ seconds
25
Temp. inside Fire Shelters can reach over ____ degrees
150
Which weather factor in the most influential on a blush fire?
Wind
Number of Escape route that should be planned
2
Fires within ____ power lines. Stay ____ away.
100ft, 100ft
Smoke is thick enough to short the power grid.
True
Keep ___ ft away from High Voltage tower or pole
35ft
Weather factors that can effect the start and spread of wildfires
1) Wind
2) Relative Humidity
3) Temperature
4) Precipitation
14.7 lbs
The weight of 1 square inch of air
Approaching cold front is an indicator of
Winds
Life expectancy of a Thunderstorm
12 Hrs.
Eddies are most pronounced urging the late
afternoon
Southern aspects are generally ___ warmer than northern aspects
5 degrees
If the relative humidity is at ____ or below. Fires will burn freely
30%
Fire danger is critical and extreme at or below ___ relative humidity
10%
Layer of very stable air where the temp. rises as the altitude increases
Inversion layer
Clouds are classified by their height in the atmosphere
True
Clouds with bases above 20,000
Cirro Clouds
Clouds with bases between 6,500 to 20,000
Alto Clouds
Clouds with bases below 6,500
Strategy Clouds
Clouds with bases between 1,500 to 10,000
Cumulus, Cumulonimbus