Table of Contents
What is the purpose of a fire shelter deployment?
A fire shelter is a safety device of last resort used by wildland firefighters when trapped by wildfires. While such a shelter cannot withstand sustained contact with flames, it can protect a firefighter’s life in a short-lived grass fire.
What is the most effective ground technique for patrolling for spot fires?
The most effective ground technique for patrolling for spot fires is the use of a systematic grid to search a designated area.
What 3 weather factors are most important to firefighters?
Weather conditions such as wind, temperature, and humidity also contribute to fire behavior. Wind is one of the most important factors because it can bring a fresh supply of oxygen to the fire and push the fire toward a new fuel source.
What is the term to describe the part of the fire that is burning most intensely?
e head is the part of a ground cover fire that spreads most rapidly. e head is usually found on the opposite side of the fire from the area of origin and in the direction toward which the wind is blowing. e head burns intensely and usually does the most damage.
Did the 19 firefighters burn to death?
The Yarnell Hill Fire claimed the lives of 19 members of the Granite Mountain Hotshots. All but one crew member died in the wildfire south of Prescott after a change in wind direction pushed the flames back toward their position.
What is one of the three categories of wildland fire causes?
66 Cards in this Set
| What technique is used to remove fuel by burning? | Backfiring |
|---|---|
| What are the three causes of wildland fires? | 1. Natural 2. Accidental 3. Intentional |
| What fuels are considered those that are close to the surface of the ground? | Surface fuels |
What is fire mop-up?
Mop-up: To make a fire safe or reduce residual smoke after the fire has been controlled by extinguishing or removing burning material along or near the control line, felling snags, or moving logs so they won’t roll downhill.
Why does wind put out fire?
Wind has a strong effect on fire behavior due to the fanning effect on the fire. Wind increases the supply of oxygen, which results in the fire burning more rapidly. It also removes the surface fuel moisture, which increases the drying of the fuel. Air pressure will push flames, sparks and firebrands into new fuel.
Which tool is a combination of hoe and rake?
The McLeod tool
The McLeod tool is a combination of a hoe and a rake and can be used for clearing brush and debris as well as constructing fire lines.
What are the 7 sides of a fire?
Command must consider the seven sides (or sectors) of the fire: front, rear, both sides, top, bottom, and interior. Fires cannot be considered under control until all seven sides are addressed. Failure to address all seven sides will frequently result in fire extension.
What do you call a cup trench fire?
A cup trench is sometimes called a roll trench or “V” trench. Effectiveness of a given width of line can be increased by using dirt or water to cool down adjacent fire. Fuels outside the fireline can be pretreated with retardant or foam, covered with dirt, or wet down. (see Figure 18).
Which is deeper a trench or an excavation?
TRENCH: An excavation in which material removal forms a narrow opening in the ground. Unlike large excavations, a trench is generally deeper than it is wide. OSHA considers an excavation to be a trench if it is 15 feet wide or less at the bottom of the excavation. You can see that all trenches are excavations, but not all
Is it safe to trench in the ground?
Trenching and soil excavation is very common and important construction activities. In most cases, these openings in the earth are either for new construction or repair purposes. Done correctly, it can be a very safe activity. Done carelessly however, it can be deadly.