Firefighter I
Fire Behavior
Chapter 3 Test
Name:
Date:
Directions: Write the correct letter on the blank before each question.
Objective 1:
Describe physical and chemical changes of matter related to fire.
________
1.
Which of the following occurs when a substance remains chemically
the same but changes in size, shape, or appearance? (87)
A.
B.
C.
D.
________
2.
Which of the following occurs when a substance changes from one
type of matter into another? (87)
A.
B.
C.
D.
________
3.
4.
Physical change
Chemical reaction
Exothermic change
Non-molecular reaction
Which of the following is a chemical reaction involving the
combination of oxygen (or similar types of substances) with other
materials? (87)
A.
B.
C.
D.
________
Physical change
Chemical reaction
Exothermic change
Non-molecular reaction
Sparking
Pyrolysis
Oxidation
Vaporization
Which of the following refers to reactions that give off energy as they
occur? (87)
A.
B.
C.
D.
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Kinetic reactions
Positive reactions
Exothermic reactions
Endothermic reactions
Chapter Test
3-1
Firefighter I
________
Fire Behavior
5.
Which of the following refers to reactions that absorb energy as they
occur? (87)
A.
B.
C.
D.
Kinetic reactions
Negative reactions
Exothermic reactions
Endothermic reactions
Objective 2:
Discuss modes of combustion, the fire triangle, and the fire
tetrahedron.
________
6.
Modes of combustion are differentiated based on: (87)
A.
B.
C.
D.
________
7.
Which of the following modes of combustion requires liquid or solid
fuels to be converted to the gas phase or vaporized? (87)
A.
B.
C.
D.
________
8.
9.
Standard combustion
Flaming combustion
Linear combustion
Nonflaming or smoldering combustion
Which of the following modes of combustion occurs when solid fuels
undergo oxidation at the surface of the fuel? (87)
A.
B.
C.
D.
________
type of fuel.
potential size of fire.
where the reaction is occurring.
whether the fuel can self-ignite.
Standard combustion
Flaming combustion
Linear combustion
Nonflaming or smoldering combustion
Which of the following are the three components of the fire triangle?
(87)
A.
B.
C.
D.
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Oxygen, fuel, and heat
Fuel, heat, and energy
Oxygen, fuel, and a self-sustained chemical reaction
Oxygen, heat, and a self-sustained chemical reaction
Chapter Test
3-2
Firefighter I
________ 10.
Fire Behavior
Flaming combustion is accurately explained BEST by which of the
following? (87)
A.
B.
C.
D.
________ 11.
Fire triangle
Fire tetrahedron
Autoignition
Piloted ignition
Which of the following is NOT an element of the fire tetrahedron?
(87)
A.
B.
C.
D.
Oxygen
Fire inhibitor
Fuel
Self-sustained chemical reaction
Objective 3:
Explain the difference between heat and temperature.
________ 12.
Which of the following is energy possessed by a moving object? (89)
A.
B.
C.
D.
________ 13.
Temperature is a measurement of: (89)
A.
B.
C.
D.
________ 14.
forward energy.
kinetic energy.
thermal energy.
potential energy.
In the customary system, the unit of measure for heat is: (89)
A.
B.
C.
D.
________ 15.
Forward energy
Kinetic energy
Thermal energy
Potential energy
joules.
degrees squared.
British thermal units.
Standard thermal units.
Applying large amounts of heat to solid fuels such as wood causes:
(90)
A.
B.
C.
D.
Fire Protection Publications
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pyrolysis.
vaporization.
deflagration.
autoignition.
Chapter Test
3-3
Firefighter I
________ 16.
Fire Behavior
Which of the following is the temperature to which the surface of a
substance must be heated for ignition and self-sustained combustion
to occur? (90-91)
A.
B.
C.
D.
Piloted ignition
Autoignition
Pre-combustion ignition
Self-starting ignition
Objective 4:
Describe sources of heat energy.
________ 17.
Which of the following is the most common source of heat in
combustion reactions? (91)
A.
B.
C.
D.
________ 18.
Which of the following occurs when any combustible is in contact
with oxygen? (91)
A.
B.
C.
D.
________ 19.
Oxidation
Pyrolysis
Spontaneous ignition
Pre-combustion ignition
Which of the following modes of electrical heat energy occurs when
electric current flows through a conductor at a normal design limit?
(92)
A.
B.
C.
D.
________ 20.
Light heat energy
Electrical heat energy
Chemical heat energy
Mechanical heat energy
Arcing
Sparking
Resistance heating
Overcurrent or overload
Which of the following types of heat energy is generated by friction
or compression? (93)
A.
B.
C.
D.
Fire Protection Publications
Oklahoma State University
Light heat energy
Electrical heat energy
Chemical heat energy
Mechanical heat energy
Chapter Test
3-4
Firefighter I
Fire Behavior
Objective 5:
Discuss the transmission of heat.
________ 21.
The rate at which heat is transferred is related to the temperature
differential of the bodies and the: (93)
A.
B.
C.
D.
________ 22.
Which of the following refers to the transfer of heat within a body or
to another body by direct contact? (94)
A.
B.
C.
D.
________ 23.
Convection
Conduction
Radiation
Absorption
Which of the following refers to transmission of energy as an
electromagnetic wave without an intervening medium? (95)
A.
B.
C.
D.
________ 25.
Convection
Conduction
Radiation
Absorption
Which of the following refers to the transfer of heat energy from a
fluid (liquid or gas) to a solid surface? (95)
A.
B.
C.
D.
________ 24.
size of the objects involved.
manner in which combustion started.
part of the fire triangle that is the weakest.
thermal conductivity of the material involved.
Convection
Conduction
Radiation
Absorption
Which of the following statements about radiant heat is MOST
accurate? (95)
A.
B.
C.
D.
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Materials that reflect radiated heat energy increase the
transmission of heat.
Radiant heat is not a factor in fire development and spread in
compartments.
Matter having a temperature above absolute zero may or may
not transmit radiant heat.
Radiant heat becomes the dominant mode of heat transfer
when the fire grows in size.
Chapter Test
3-5
Firefighter I
________ 26.
Fire Behavior
Which of the following refers to materials that absorb heat but do
not participate actively in the combustion reaction? (96)
A.
B.
C.
D.
Reactive agents
Passive agents
Secondary agents
Tertiary agents
Objective 6:
Explain how the physical states of fuel affect the combustion
process.
________ 27.
Fuel in a combustion reaction is known as the: (96)
A.
B.
C.
D.
________ 28.
For flaming combustion to occur, fuels must be in the: (97)
A.
B.
C.
D.
________ 29.
liquid state.
solid state.
gaseous state.
chemical state.
In order to burn, liquids must be: (97)
A.
B.
C.
D.
________ 30.
primary agent.
increasing agent.
reducing agent.
combustion agent.
pyrolysized.
vaporized.
flowing.
contained.
Which of the following refers to the temperature at which a liquid
gives off sufficient vapors to ignite, but not sustain, combustion?
(98)
A.
B.
C.
D.
Fire Protection Publications
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Fire point
Flash point
Autoignition point
Volatility rating
Chapter Test
3-6
Firefighter I
________ 31.
Fire Behavior
Which of the following is the primary consideration in whether solids
are easy or difficult to ignite? (101)
A.
B.
C.
D.
________ 32.
Surface-to-mass ratio
Source of ignition
Proximity to the source of heat
Orientation to the source of heat
Which of the following is NOT a factor that heat release rate is
dependent upon? (103)
A.
B.
C.
D.
Type of fuel
Quantity of fuel
Orientation of fuel
Ignition source
Objective 7:
Explain how oxygen concentration affects the combustion
process.
________ 33.
Which of the following is the primary oxidizing agent in most fires? (103)
A.
B.
C.
D.
________ 34.
Which of the following statements is MOST accurate about materials
that do not burn at normal oxygen levels? (104)
A.
B.
C.
D.
________ 35.
Oxygen
Methane
Carbon monoxide
Carbon dioxide
These materials will also not burn in oxygen-enriched
atmospheres.
These materials may burn readily in oxygen-enriched
atmospheres.
There materials will generally autoignite in oxygen-enriched
atmospheres.
These materials must reach the neutral flammable limit to
sustain burning.
Which of the following refers to the minimum concentration of fuel
vapor and air that supports combustion? (105)
A.
B.
C.
D.
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Upper flammable limit
Lower flammable limit
Neutral flammable limit
Minimum flammable limit
Chapter Test
3-7
Firefighter I
Fire Behavior
Objective 8:
Discuss the self-sustained chemical reaction involved in the
combustion process.
________ 36.
Which of the following statements about self-sustained chemical
reactions is MOST accurate? (105-106)
A.
B.
C.
D.
________ 37.
Which of the following statements about surface combustion is MOST
accurate? (106-107)
A.
B.
C.
D.
________ 38.
This process is a simple process that involves the release of
energy as heat.
This process creates heat and light but does not create
flammable or toxic products.
This process inhibits the formation of free radicals and slows the
oxidation reaction.
This process involves many types of intermediate combustion
products, many of which are flammable and toxic.
It can be extinguished by chemical flame inhibition.
It cannot be extinguished by chemical flame inhibition.
It involves initiation or continuation of the chemical chain
reaction found in combustion.
It cannot be extinguished by eliminating one side of the fire
triangle.
In flaming combustion, the fire will continue to burn until the fuel or
oxygen is exhausted or: (106)
A.
B.
C.
D.
surface combustion takes over.
more than 72 hours have passed.
the chemical chain reaction causes molecules of methane and
oxygen to break apart.
an extinguishing agent is applied in sufficient quantity to
interfere with the ongoing reaction.
Objective 9:
Describe common products of combustion.
________ 39.
Which of the following causes the most fire deaths? (108)
A.
B.
C.
D.
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Heat
Toxic smoke
Exhaustion
Structural collapse
Chapter Test
3-8
Firefighter I
________ 40.
Fire Behavior
Which of the following products of combustion is frequently identified
as the cause of death for civilian fire fatalities and acts as a chemical
asphyxiant by binding with hemoglobin in the blood? (108)
A.
B.
C.
D.
________ 41.
Which of the following products of combustion is produced in the
combustion of materials containing nitrogen and is a significant
byproduct of the combustion of polyurethane foam? (108)
A.
B.
C.
D.
________ 42.
Methane
Carbon monoxide
Hydrogen cyanide
Carbon dioxide
Methane
Carbon monoxide
Hydrogen cyanide
Carbon dioxide
Which of the following products of combustion is a product of
complete combustion of organic materials and also acts as a
respiratory stimulant? (108)
A.
B.
C.
D.
Methane
Carbon monoxide
Hydrogen cyanide
Carbon dioxide
Objective 10:
Distinguish among classifications of fires.
________ 43.
Which of the following classifications of fires involve ordinary
combustible materials such as wood, cloth, paper, rubber, grass, and
many plastics? (110)
A.
B.
C.
D.
________ 44.
Class
Class
Class
Class
A fires
B fires
C fires
D fires
Which of the following classifications of fires involve energized
electrical equipment? (110-111)
A.
B.
C.
D.
Fire Protection Publications
Oklahoma State University
Class
Class
Class
Class
A fires
B fires
C fires
D fires
Chapter Test
3-9
Firefighter I
________ 45.
Fire Behavior
Which of the following classifications of fires involve flammable and
combustible liquids and gases such as gasoline, oil, lacquer, paint,
mineral spirits, and alcohol? (110)
A.
B.
C.
D.
________ 46.
A fires
B fires
C fires
K fires
Which of the following classifications of fires involve combustible
metals such as aluminum, magnesium, potassium, sodium, titanium,
and zirconium? (111)
A.
B.
C.
D.
________ 47.
Class
Class
Class
Class
Class
Class
Class
Class
A fires
B fires
C fires
D fires
Which of the following classifications of fires involve oils and greases
normally found in commercial kitchens and food preparation facilities
using deep fryers? (112)
A.
B.
C.
D.
Class
Class
Class
Class
A fires
B fires
C fires
K fires
Objective 11:
Describe the stages of fire development within a compartment.
________ 48.
When fire development is limited by the air supply, it is said to be:
(113)
A.
B.
C.
D.
________ 49.
fuel controlled.
ventilation controlled.
combustion controlled.
environmentally controlled.
During which stage of fire development is the fire small, confined to
the material first ignited, and may self-extinguish? (114)
A.
B.
C.
D.
Fire Protection Publications
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Incipient stage
Growth stage
Fully developed stage
Decay stage
Chapter Test
3-10
Firefighter I
________ 50.
Fire Behavior
During which stage of fire development has the fire not yet
influenced the environment to a significant extent? (114)
A.
B.
C.
D.
________ 51.
During which stage of fire development does the fire begin to
influence the environment within the compartment? (116)
A.
B.
C.
D.
________ 52.
the top layer.
the lower layers.
the neutral plane.
both the top and lower layers.
Rollover
Flashover
Backdraft
Isolated flames
Which of the following refers to a condition where the unburned fire
gases accumulated at the top of a compartment ignite and flames
propagate through the hot gas layer or across the ceiling? (118)
A.
B.
C.
D.
________ 55.
in
in
in
in
Which of the following refers to pockets of flames that may be observed
moving through the hot gas layer above the neutral plane? (118)
A.
B.
C.
D.
________ 54.
Incipient stage
Growth stage
Fully developed stage
Decay stage
In thermal layering, the hottest gases tend to be: (117)
A.
B.
C.
D.
________ 53.
Incipient stage
Growth stage
Fully developed stage
Decay stage
Rollover
Flashover
Backdraft
Isolated flames
Which of the following refers to the transition when conditions in the
compartment change very rapidly from partial to full involvement of
the compartment? (118)
A.
B.
C.
D.
Fire Protection Publications
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Rollover
Flashover
Backdraft
Isolated flames
Chapter Test
3-11
Firefighter I
________ 56.
Fire Behavior
Which of the following does NOT occur just before flashover? (120)
A.
B.
C.
D.
________ 57.
During which stage of fire development are all combustible materials
in the compartment burning? (121)
A.
B.
C.
D.
________ 58.
Incipient stage
Growth stage
Fully developed stage
Decay stage
During which stage of fire development does the fuel become
consumed or the oxygen concentration fall to the point where
flaming combustion can no longer be supported? (121)
A.
B.
C.
D.
________ 59.
Temperatures rapidly increase
Temperatures decline suddenly
Additional fuel becomes involved
Fuel in the compartment gives off combustible gases
Incipient stage
Growth stage
Fully developed stage
Decay stage
An increase in ventilation in a fire that is in the decay stage can
result in a deflagration called a: (122)
A.
B.
C.
D.
rollover.
flashover.
backdraft.
flameover.
Objective 12:
Summarize factors that affect fire development within a
compartment.
________ 60.
Which of the following are the most fundamental fuel characteristics
influencing fire development in a compartment fire? (125)
A.
B.
C.
D.
Fire Protection Publications
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Mass and surface area
Age and flammability
Fuel moisture and mass
Surface area and density
Chapter Test
3-12
Firefighter I
________ 61.
Fire Behavior
Which of the following is NOT a factor that influences the availability
and location of additional fuels? (125)
A.
B.
C.
D.
________ 62.
All other things being equal, a fire in a large compartment will: (127)
A.
B.
C.
D.
________ 63.
Structural openings
Construction type
Occupant load
Building ventilation systems
Which of the following is NOT a thermal property of the enclosure?
(128)
A.
B.
C.
D.
________ 65.
develop faster than one in a small compartment.
develop more slowly than one in a small compartment.
develop at the same rate as one in a small compartment.
develop at a rate either faster or slower than a small
compartment.
Which of the following is NOT a determination of pre-existing
ventilation? (128)
A.
B.
C.
D.
________ 64.
Contents (nonstructural fire load)
Construction (structural fire load)
Configuration of the building
Distance to the nearest fire sprinkler
Insulation
Retention
Conductivity
Occupant load
Which of the following ambient conditions can be an extremely
significant factor in structural fire development? (129)
A.
B.
C.
D.
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Humidity
Temperature
Barometric pressure
Strong winds
Chapter Test
3-13
Firefighter I
Fire Behavior
Objective 13:
Describe methods used to control and extinguish fire.
________ 66.
Which of the following methods of controlling and extinguishing a fire
depends on reducing the temperature of a fuel to a point where it
does not produce sufficient vapor to burn? (130)
A.
B.
C.
D.
________ 67.
Which of the following methods of controlling and extinguishing a fire
effectively extinguishes any fire? (131)
A.
B.
C.
D.
________ 68.
Fuel removal
Temperature reduction
Oxygen exclusion
Chemical flame inhibition
Which of the following methods of controlling and extinguishing a fire
interrupts the combustion reaction and stops flame production?
(132)
A.
B.
C.
D.
________ 70.
Fuel removal
Temperature reduction
Oxygen exclusion
Chemical flame inhibition
Which of the following methods of controlling and extinguishing a fire
reduces a fire’s growth and may totally extinguish it over time, but is
not generally used for extinguishment in structure fires? (131)
A.
B.
C.
D.
________ 69.
Fuel removal
Temperature reduction
Oxygen exclusion
Chemical flame inhibition
Fuel removal
Temperature reduction
Oxygen exclusion
Chemical flame inhibition
Which of the following methods of controlling and extinguishing a fire
uses water for the extinguishment of smoldering fires? (130)
A.
B.
C.
D.
Fire Protection Publications
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Fuel removal
Temperature reduction
Oxygen exclusion
Chemical flame inhibition
Chapter Test
3-14