The amount of moisture in the air divided by the amount of moisture the air could hold when saturated at the same air temperature, usually expressed as a percent, is called?
What is Relative Humidity
100
What are the three parts of the fire triangle?
What is
1. Fuel
2. Oxygen
3. Heat.
100
What are two of the top six components of smoke?
What are Carbon Monoxide, Nitrogen Oxide, Sulfur Oxide, Particulates, crystalline silica.
100
As trees loose strength due to damage or rot, name one environmental factor that can cause a tree to fail.
What is
1. Wind
2. Snow
3. Rain
4. Gravity
100
The three methods of heat transfer are?
What is
1. Conduction
2. Convection
3. Radiation
200
An air layer whose temperature increases with altitude is known as an?
What is Inversion.
Air temperature usually decreases as altitude increases. When you have a layer of warmer air on top of cooler air an inversion is formed. This inhibits vertical movement of air and can lead to decreased movement of fresh air into a fire. But WATCH OUT… if the warm smoke column breaks through the inversion layer fire activity can increase very quickly.
200
Combustible materials lying beneath the surface are known as what type of fuel?
What is ground.
200
What are the top 3 instances when fire fighters are exposed to smoke.
What is Mop up, Direct line construction, Holding operations.
200
What is it called when you take a good overall view of a work site.
What is Site Assessment.
200
The three major environmental factors that influence wildland fire behavior are?
What is
1. Weather
2. Fuels
3. Topography
300
As temperature increases Relative Humidity does what?
What is Decreases.
300
Combustible materials lying on or immediately above the ground are known as what type of fuel?
What is Surface.
300
What is one way to mitigate exposure to smoke and fine particulates during mop up.
What is
1. follow mop up guide lines - don't do excessive mop up.
2. When using water, use a light spray and let it soak in.
300
Soft fragile fungus that are easily picked off trees, decompose what part of the tree.
What is Sap wood.
300
Name one of the three main irritants of concern in wildland smoke.
What is
1. Carbon Monoxide
2. Aldehydes
3. N particulates
400
Atmosphere that resists vertical air movement is considered what?
What is Stable
400
Combustible materials that aid the spread of fire from the surface to the upper canopy are known as what type of fuel?
What is Ladder.
400
What level of CO(ppm) will you feel irritable, fatigued, diminished judgment, dizziness and diminished vision.
What is 220 ppm
400
Each conch on a tree represents approximately how many feet of heart rot.
What is 3-10 feet.
400
What is WATCH OUT SITUATION #10?
What is Attempting frontal assault on fire.
500
Winds that are strong, dry, caused by the compression of air as it flows down the lee side of a mountain range and usually, but not always, warm for the season.
What is Foehn winds
500
The quantity of fuel in an area, expressed as tons per acre, is known as
What is Fuel Load.
500
When exposed to high levels of CO, how many hours in clean air does it take to cut in half the CO levels in the blood.
What is 4-6 hours.
500
At a minimum a tree needs how much of its root system intact in order to hold it to the ground.
What is 50 %
500
The roots on the low side of the tree are called the _____ root and the roots on the high side are called the ______ root.