CFI & CFEI SET 1 QUESTIONS &
VERIFIED ANSWERS PASSED
ALREADY GRADED A+ NEWEST
VERSION
1000
If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage?
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987
The year of the first edition of NFPA 1033
1.5 times
The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F
What temperature in the upper gas layer causes the onset of Flashover?
1960°F
The temperature at which copper melts
2 W/cm2
The measurement of the radiant heat flux (from gas layer to the floor) that indicates the
onset of flashover
240 volts
The voltage between the two hot wires at the service entrance cables in most single-
family residences in the United States (single-phase service with three wires)
3 years
The revision cycle for NFPA 921 (timespan)
350°F
The flash point of power steering fluid
35-70 p.s.i.
In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used
to pump fuel from a fuel tank
5 and 17
The lower explosive and upper explosive limit of natural gas (methane)?
680°F
The ignition temperature of power steering fluid
Fuel
Any substance that can undergo combustion
Act or Omission
,Two factors or situations leading to a fire that may show the nature of the incident
responsibility.
Additional Investigative Recommendations
This concept should not be included in a summary report of findings.
Admiralty Law
A law that may govern the fire investigation of a boat
After-market Equipment
A type of device in a vehicle, which can cause an electrical overload to factory installed
wiring
Alive and Breathing
Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most
significant factors in confirming that, at the time of the fire, the victim was WHAT?
All Team Members
Those who have the responsibility for monitoring safety conditions at the fire or
explosion scene
1220°F
The melting temperature of aluminum
Aluminum-to-pavement sparks
Which one of these is NOT considered a competent ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
Heat Release Rate
A meaningful analysis of a fire requires an understanding of the fire growth, the total
heat released, and WHAT?
Arc-fault circuit interrupter
What does he term AFCI stand for? And, the "A" specifically represents what?
ASTM
The organization that develops standard methods for testing materials
Auto-ignition
Initiation of combustion by heat but without a spark or flame
Backdraft
A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft
An explosion caused by a combination of combustible materials heated to the ignition
point and a sudden introduction of oxygen to support combustion
Backfire Flame Arrestor
A boat device that owners fail to keep clean, which is a frequent cause of engine
compartment fires on boats
Ballast
A device on a fluorescent light fixture that transforms the voltage from normal household
voltage to a higher voltage
Battery
The starter motor draws its energy from this source
,Beyond a Reasonable Doubt
The burden of proof in a criminal trial
Bimetallic Thermostats
The component that controls temperature in many heat-producing appliances
BLEVE
This may occur when the vapor pressure of a liquid exceeds atmospheric pressure
*And this is the most common mechanical explosion
Boiling Point
The temperature or point at which the vapor pressure of a liquid equals the external
pressure applied
Bonding
The process of electrically connecting two or more conductive objects
Bottom Passenger Side of the Windshield
Most engine fires typically penetrate the interior compartment at this location of the
vehicle
Brass Prongs (male ends)
An investigator can closely examine this component of a cord to determine if it was
plugged into a receptacle
Calcination
The chemical and physical changes that occur in gypsum wallboard surfaces during a
fire
Carbon Monoxide
A narcotic gas that one might be exposed to in the fire
Carbon Monoxide
The levels of this toxin dissipate over time after removal from the fire environment.
Carbon Monoxide Poisoning
This toxic condition does NOT cause a cherry-pink coloration to the skin of the fire
victim and is NOT visible on all skin types
Carburetor Backfire
This occurrence is the most common open-flame ignition source in non-fuel injected
vehicles
Ceiling jet
When the fire plume reaches the ceiling of a room and moves laterally along the ceiling
Christmas Tree
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter than a
pool of gasoline or a polyurethane chair
Clean Burn
This occurs when intense radiated heat or direct flame contacts a surface during the
fire, burning away deposits
Collapsed Furniture Springs
This is a fire effect to furniture that does NOT provide the investigators with clues
concerning the type of ignition source, but can show fire spread and intensity
Color
A fire characteristic that is NOT necessarily an accurate indicator of the flame
temperature
, Color Codes
This feature distinguishes the heat-sensitive bulbs of sprinkler heads from each other
Combustion
A chemical process of oxidation, which occurs at a rate fast enough to produce heat
and usually light in the form of either a glow or a flame
Compartmentation
A building design feature that aims to limit the fire to its origin.
Competent Ignition Source
Located at the origin, these should be considered individually during the development of
a cause hypothesis
Complete PPE
This should be donned when dealing with hazardous chemicals
Conduction
An example of heat transfer, when the heating of a steel beam to an unexposed part of
a building results in a fire in that location
Connection Points
Overheating on a circuit is most likely to occur at this location on a circuit
Joint Investigation
Consensus agreement between interested parties should be developed prior to the
commencement of WHAT?
Crazing
Complicated patterns in glass
Crime Scenes
A type of scene or circumstances, in which fires do NOT always destroy all physical
evidence
Current (amperage)
A factor in OHM's law that can be calculated if you know resistance and voltage
Deductive Reasoning
The reasoning in the scientific method used to test an hypothesis
Deductive Reasoning
The reasoning process of moving from generalizations to particular assertion
(*"Reduce to Deduce"
*Test hypothesis ("deduce")
*Test based on known facts
*More confident assertion than induction)
Demonstrative Evidence
Type of evidence consisting of tangible items
*as opposed to Testimonial Evidence or Documentary (written) Evidence
Depth of Char
A burn pattern analysis that is MORE useful for evaluating fire spread, rather than
length or intensity of burning
Differential
All voltages are _________________, which means that a battery or DC generator
creates a potential difference that can force charge through a wire
VERIFIED ANSWERS PASSED
ALREADY GRADED A+ NEWEST
VERSION
1000
If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage?
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987
The year of the first edition of NFPA 1033
1.5 times
The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F
What temperature in the upper gas layer causes the onset of Flashover?
1960°F
The temperature at which copper melts
2 W/cm2
The measurement of the radiant heat flux (from gas layer to the floor) that indicates the
onset of flashover
240 volts
The voltage between the two hot wires at the service entrance cables in most single-
family residences in the United States (single-phase service with three wires)
3 years
The revision cycle for NFPA 921 (timespan)
350°F
The flash point of power steering fluid
35-70 p.s.i.
In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used
to pump fuel from a fuel tank
5 and 17
The lower explosive and upper explosive limit of natural gas (methane)?
680°F
The ignition temperature of power steering fluid
Fuel
Any substance that can undergo combustion
Act or Omission
,Two factors or situations leading to a fire that may show the nature of the incident
responsibility.
Additional Investigative Recommendations
This concept should not be included in a summary report of findings.
Admiralty Law
A law that may govern the fire investigation of a boat
After-market Equipment
A type of device in a vehicle, which can cause an electrical overload to factory installed
wiring
Alive and Breathing
Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most
significant factors in confirming that, at the time of the fire, the victim was WHAT?
All Team Members
Those who have the responsibility for monitoring safety conditions at the fire or
explosion scene
1220°F
The melting temperature of aluminum
Aluminum-to-pavement sparks
Which one of these is NOT considered a competent ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
Heat Release Rate
A meaningful analysis of a fire requires an understanding of the fire growth, the total
heat released, and WHAT?
Arc-fault circuit interrupter
What does he term AFCI stand for? And, the "A" specifically represents what?
ASTM
The organization that develops standard methods for testing materials
Auto-ignition
Initiation of combustion by heat but without a spark or flame
Backdraft
A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft
An explosion caused by a combination of combustible materials heated to the ignition
point and a sudden introduction of oxygen to support combustion
Backfire Flame Arrestor
A boat device that owners fail to keep clean, which is a frequent cause of engine
compartment fires on boats
Ballast
A device on a fluorescent light fixture that transforms the voltage from normal household
voltage to a higher voltage
Battery
The starter motor draws its energy from this source
,Beyond a Reasonable Doubt
The burden of proof in a criminal trial
Bimetallic Thermostats
The component that controls temperature in many heat-producing appliances
BLEVE
This may occur when the vapor pressure of a liquid exceeds atmospheric pressure
*And this is the most common mechanical explosion
Boiling Point
The temperature or point at which the vapor pressure of a liquid equals the external
pressure applied
Bonding
The process of electrically connecting two or more conductive objects
Bottom Passenger Side of the Windshield
Most engine fires typically penetrate the interior compartment at this location of the
vehicle
Brass Prongs (male ends)
An investigator can closely examine this component of a cord to determine if it was
plugged into a receptacle
Calcination
The chemical and physical changes that occur in gypsum wallboard surfaces during a
fire
Carbon Monoxide
A narcotic gas that one might be exposed to in the fire
Carbon Monoxide
The levels of this toxin dissipate over time after removal from the fire environment.
Carbon Monoxide Poisoning
This toxic condition does NOT cause a cherry-pink coloration to the skin of the fire
victim and is NOT visible on all skin types
Carburetor Backfire
This occurrence is the most common open-flame ignition source in non-fuel injected
vehicles
Ceiling jet
When the fire plume reaches the ceiling of a room and moves laterally along the ceiling
Christmas Tree
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter than a
pool of gasoline or a polyurethane chair
Clean Burn
This occurs when intense radiated heat or direct flame contacts a surface during the
fire, burning away deposits
Collapsed Furniture Springs
This is a fire effect to furniture that does NOT provide the investigators with clues
concerning the type of ignition source, but can show fire spread and intensity
Color
A fire characteristic that is NOT necessarily an accurate indicator of the flame
temperature
, Color Codes
This feature distinguishes the heat-sensitive bulbs of sprinkler heads from each other
Combustion
A chemical process of oxidation, which occurs at a rate fast enough to produce heat
and usually light in the form of either a glow or a flame
Compartmentation
A building design feature that aims to limit the fire to its origin.
Competent Ignition Source
Located at the origin, these should be considered individually during the development of
a cause hypothesis
Complete PPE
This should be donned when dealing with hazardous chemicals
Conduction
An example of heat transfer, when the heating of a steel beam to an unexposed part of
a building results in a fire in that location
Connection Points
Overheating on a circuit is most likely to occur at this location on a circuit
Joint Investigation
Consensus agreement between interested parties should be developed prior to the
commencement of WHAT?
Crazing
Complicated patterns in glass
Crime Scenes
A type of scene or circumstances, in which fires do NOT always destroy all physical
evidence
Current (amperage)
A factor in OHM's law that can be calculated if you know resistance and voltage
Deductive Reasoning
The reasoning in the scientific method used to test an hypothesis
Deductive Reasoning
The reasoning process of moving from generalizations to particular assertion
(*"Reduce to Deduce"
*Test hypothesis ("deduce")
*Test based on known facts
*More confident assertion than induction)
Demonstrative Evidence
Type of evidence consisting of tangible items
*as opposed to Testimonial Evidence or Documentary (written) Evidence
Depth of Char
A burn pattern analysis that is MORE useful for evaluating fire spread, rather than
length or intensity of burning
Differential
All voltages are _________________, which means that a battery or DC generator
creates a potential difference that can force charge through a wire
