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