What is self-sustained rapid oxidation that produces heat and light?
Reduction
Pyrolysis
Combustion
Fire
Question 2
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50
Rapid oxidation occurs in ____ forms.
4
3
2
5
Question 3
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50
A fire is burning without flame. What form of oxidation is this?
Steady-state
Oxidizing
Smoldering
Incipient
Question 4
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50
In the wildland, which factor needed for combustion is found in the least abundance?
Reducing agent
Oxygen
Fuel
Heat
Question 5
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50
Fuel gases evolving from a non-gaseous fuel is called _________.
Oxidation
Pyrolysis
Combustion
Ignition
Question 6
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50
Conversion of a liquid or solid into gas requires _________.
Combustion
A reducing agent
Heat
Ignition
Question 7
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50
Fuel exists in ______ states of matter.
4
1
2
3
Question 8
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50
Which state of matter will burn?
Solid
Gel
Liquid
Gas
Question 9
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50
What is another term for a steady-state fire?
Free-burning
Self-sustaining
Oxidizing
Fully-developed
Question 10
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50
How many states of matter will burn?
1
4
2
3
Question 11
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50
Which one of the following is the best conductor of heat?
Green plants
Wood
Copper
Dead ground cover
Question 12
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50
What causes spot fires?
Electromagnetism
Radiation
Conduction
Convection
Question 13
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50
All of the following are methods of heat transfer EXCEPT ONE. CHOOSE THE EXCEPTION.
Radiation
Convection
Electromagnetism
Conduction
Question 14
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50
What is heat transfer through the movement of a liquid or gas?
Convection
Radiation
Conduction
Electromagnetism
Question 15
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50
What is heat transfer through direct contact between objects of different temperature?
Convection
Electromagnetism
Radiation
Conduction
Question 16
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50
A minimum of approximately ____% oxygen is required to support combustion.
20
17
16
19
Question 17
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50
There are _____ primary methods of heat transfer.
4
5
3
2
Question 18
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50
What is heat transfer through infrared rays?
Electromagnetism
Convection
Conduction
Radiation
Question 19
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50
Unignited fuels nearby a fire are preheated and dehydrated by ______.
Conduction
Electromagnetism
Radiation
Convection
Question 20
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50
Upslope fuels are preheated predominantly by ______.
Direct flame contact
Conduction
Convection
Electromagnetism
Question 21
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50
Which method of extinguishment is the least practical for large wildland fires?
Restricting the oxygen supply
Inhibiting chemical reactions
Removing fuel
Reducing temperature
Question 22
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50
Cutting a fire line down to mineral soil employs which method of extinguishment?
Removing oxygen
Removing fuel
Inhibiting flame production
Reducing heat
Question 23
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50
Applying water is an example of which method of extinguishment?
Inhibiting flame production
Removing fuel
Removing oxygen
Reducing heat
Question 24
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50
Retardants dropped from aircraft employ which method of extinguishment?
Removing fuel
Removing oxygen
Reducing heat
Inhibiting flame production
Question 25
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50
Covering flaming material with dirt is an example of which method of extinguishment?
Removing oxygen
Removing fuel
Inhibiting flame production
Reducing heat
Question 26
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50
What is the term for any substance that will burn?
Hazard
Fuel
Free radical
Oxidizer
Question 27
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50
In the NFDRS fuel models, ______ is one of the four broad fuel groups.
Live
Brush
Aerial
Flashy
Question 28
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50
The NFDRS classifies fuels according to ______.
Size
Moisture content
Amount and distribution
Location
Question 29
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50
In the NFDRS fuel models, ______ is one of the four broad fuel groups.
Timber
Litter
Heavy
Green
Question 30
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50
In the NFDRS fuel models, ______ is one of the four broad fuel groups.
Light
Ladder
Substory
Slash
Question 31
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50
What is slash?
Debris from logging operations
Decomposing litter of live fuels
Seasonal ground cover
Any dead vegetation or litter
Question 32
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50
A mixed hardwood forest predominates in what region of the country?
North
West
South
East
Question 33
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50
A species combination of foxtail, fescue and cheat grasses, with oak, hemlock, fir and pine trees are found predominately in which region of the country?
East
West
North
South
Question 34
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50
Tall prairie grasses, cedar, spruce, fir and various hardwoods will most likely be found in what region of the country?
North
East
West
South
Question 35
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50
Palmetto, bay, gallberry, sagebrush, and various conifers and hardwoods are found in which region of the country?
South
West
East
North
Question 36
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50
Maple, pine, poplar, and aspen are most common in which region of Canada?
East
West
South
North
Question 37
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50
Douglas fir, spruce, cedar and hemlock are most commonly found in which region of Canada?
South
East
North
West
Question 38
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50
Prairie grasses, cypress, larch, pine, fir and spruce are most common in which region of Canada?
West
East
South
North
Question 39
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50
The majority of structures in wildland areas constructed of what material?
Metal
Wood
A variety of non-combustible materials
Masonry
Question 40
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50
All of the following are wildland fuel characteristics EXCEPT ONE. CHOOSE THE EXCEPTION.
Density
Position
Temperature
Moisture
Question 41
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50
Solar heating of wildland fuels _________.
Makes fuel more susceptible to ignition
Primarily affects aerial fuels
Primarily affects dead fuels
Can cause ignition
Question 42
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50
All of the following are wildland fuel characteristics EXCEPT ONE. CHOOSE THE EXCEPTION.
Loading
Size
Mass
Continuity
Question 43
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50
What is the effect of heat energy from the sun on wildland fuels?
Lower ignition temperature
Provide an ignition source
Reduce moisture content
Reduce flash point
Question 44
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50
Most wildland fuels will produce sufficient vapors for ignition if heated to a temperature of between ______ and ______ degrees F.