S-130 Module 1 (Preparedness, ICS, & Resources) 100% Correct

S-130 Module 1 (Preparedness, ICS, & Resources) 100% Correct What is the "origin" of a fire? The origin is the area where the fire started. What is the "head" of a fire? The head is the part of a wildfire with the greatest forward rate of spread. You have to control the head and prevent the formation of new heads to suppress a wildland fire. What are "fingers" on a fire? Fingers are typically long, narrow strips of fire that extend from the main body of a fire. Caution: Uncontrolled fingers may form new heads. What is a "pocket" in a fire? A pocket is the unburned area between the main fire and any fingers. What is the "perimeter" of a fire? The perimeter is the outer boundary - or the distance around the outside edge - of the burning or burned area. Also commonly called the fire edge. What is the "rear" or "heel" of a fire? It is the end opposite the head . Therefore it is relatively closer to the point of origin than to the head. Because the fire at the, (blank), burns into any prevailing wind, it generally burns with low intensity and has a low ROS. Heel What are "flanks" on a fire? Flanks are the sides of a wildland fire, roughly parallel to the main direction of fire spread. Why is it important to control flanks of a fire ASAP? Because: 1. A shift in wind direction may quickly change a flank into a head. 2. Fingers often extend from flanks What are "islands" in a fire? Islands are unburned areas inside the fire perimeter. Since islands are unburned potential fuels, patrol them frequently & check for spot fires. Islands close to a, (blank), line may flare up later & start spot fire across the control line. Therefore you may want to burn them out. Control line When does a "slopover" occur? A slopover occurs when fire crosses a control line or natural barrier intended to contain the fire, Note: A slopover occurs immediately across & adjacent to the control line whereas spot fires occur some distance from the control line. What is the "green"? The green is ANY area that is NOT BURNT but is adjacent to an involved area. The edge of the, (blank), is usually where you construct a control line. Green What is the "black"? The black or the burn is the area in which the fire has consumed the fuels. If a surface fire leaves aerial, (blank), more or less intact in the black, or visa-versa, a reburn can occur when burning conditions are more favorable. Fuels As a rule of thumb, there 60 minutes in an hours and just over, (blank), feet in a chain. 60 feet 1 feet per minute equals, (blank), chains per hour 1 Chain 10 feet per minute equals, (blank), chains per hour 10 Chains Fire Spread is the same thing as, (blank) Rate of Spread (ROS) (Blank), fires burn without a flame and very low ROS. Smoldering (Blank), fires burn with a low flame and low ROS. Creeping A, (blank), fire is one that spreads rapidly with a well-defined head. Running What is a backing fire? A backing fire is where the fire moves AWAY from the head, downhill, or against the wind. Place the following terms in order from the lowest ROS to the highest: Crowning Running Smoldering Creeping Torching Crowning 1. Smoldering 2. Creeping 3. Running 4. Torching 5. Crowning