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