Wildland Fire - S190 All Possible Questions and Answers with complete solution

3 Sides of Fire Triangle - Answer-Heat - Oxygen - Fuel Without one!... Fire goes out! 3 Methods of heat transfer - Answer-Radiation - Conduction - Convection Head of Fire - Answer-The part of a fire's perimeter that is roughly parallel to the main direction of spread Fingers of a fire - Answer-Extension of main fire - the long narrow extensions of a fire projecting from the main body Spot Fire - Answer-Beyond the main fire - Fire ignited outside the perimeter of the main fire by a firebrand Smoldering - Answer-Fire burning without a flame and barely spreading Creeping Fire - Answer-Fire burning with a low flame and spreading slowly Running Fire - Answer-Behavior of a fire spreading rapidly with a well defined head Controlled - Answer-Fire can reasonably be expected to hold under the foreseeable conditions South Facing Slope - Answer-Will have more activity than a North facing slope. Canyons - Answer-Box Canyons & Narrow Canyons (Dangerous) Narrow Canyons - Answer-Fire can spread easily (in steep narrow canyon) to fuels on the opposite site by radiation and spotting. Wind eddies and strong upslope air movement may be expected at sharp bendsBarriers - Natural - Answer-Rivers - Lakes - Rock - Slides Barriers - Man-made - Answer-Roads - Highways - Reservoirs - Fireline constructed by fire resources Fuel Types - Answer-Grass - Grass Shrubs - Shrub - Timber Understory - Timber Litter - Slash Blowdown Fine Fuels - Answer-Grass - Grass Shrubs - Easier to burn Horizontal Continuity - Answer-Uniform Fuels and Patchy Fuels Uniform Fuels - Answer-All fuels distributed continuously over the area Patchy Fuels - Answer-Patches of rock outcroppings - Bare ground - Areas where another dominant type of fuel is much less flammable Ladder Fuels - Answer-Combustible materials that aid the spread of fire from the surface to the upper canopy Fuel Moisture - Answer-The amount of water in a fuel, expressed as a percentage of the oven-dry weight of that fuel