FIRE B Q&A grade A
The rate at which the heat energy is generated by burning is termed
A) heat release rate.
B) peak heat release rate.
C) fuel load.
D) fire load. - (CORRECT ANSWER)Heat Release Rate
The variables considered when determining a fuel's heat release rate include all of
the following EXCEPT
A) the heat of combustion.
B) mass loss rate or burning rate.
C) surface area.
D) ignition temperature. - (CORRECT ANSWER)Ignition Temperature
The ________ of a material refers to the amount of energy emitted per unit of fuel
mass consumed, and it varies by fuel
A) heat of combustion
B) specific heat
C) heat release rate
D) peak heat release rate - (CORRECT ANSWER)Heat of Combustion
The ________ is the loss of mass over time from the fuel's surface when undergoing
combustion
A) heat of combustion (ΔHc )
B) specific heat (cp)
C) mass burning flux ()
D) peak heat release rate - (CORRECT ANSWER)Mass Burning Flux
The ________, often referred to as the burning rate, is the rate at which the fuel is
losing mass while undergoing combustion and is usually expressed in kilograms per
second (kg/s) or grams per second (g/s).
A) heat of combustion (ΔHc )
B) mass loss rate ()
C) heat release rate ()
D) peak heat release rate - (CORRECT ANSWER)Mass Loss Rate
________ is used to describe the amount of energy that is required to produce a unit
mass of flammable vapor from a combustible that is initially at ambient temperatures
A) Heat of combustion
B) Specific heat
C) Heat of gasification
D) Peak heat release rate - (CORRECT ANSWER)Heat of Gastrification
The four ideal fire growth curves include all of the following EXCEPT:
A) slow.
B) infinite.
, C) ultrafast.
D) fast. - (CORRECT ANSWER)Infinite
Heat release rates of pool fires are dependent on which of the following?
A) Surface area exposed to air
B) Heat of combustion of the fuel
C) Both A and B
D) None of the above - (CORRECT ANSWER)Both A and B
Liquids evolving vapors that can undergo combustion with relative ease are
considered to be:
A) ignitable liquids.
B) flammable liquids.
C) combustible liquids.
D) viscous. - (CORRECT ANSWER)Ignitable Liquids
What is the main measurement used when considering the ignitability of liquids
A) Flash point
B) Fire point
C) Flame point
D) Boiling point - (CORRECT ANSWER)Flash Point
13. Which of the following sets a basis for classification of flammability of liquids?
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A) NFPA 30
B) NFPA 72
C) NFPA 921
D) NFPA 101 - (CORRECT ANSWER)NFPA 30
14. Under NFPA classification, which of the following presents the most significant
threat of producing ignitable vapors at ambient conditions?
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A) Class IA
B) Class IB
C) Class IC
D) Class II - (CORRECT ANSWER)Class 1A
15. Under NFPA classification, which of the following presents the least significant
threat of producing ignitable vapors at ambient conditions?
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A) Class IA
B) Class IIIB
C) Class IC
The rate at which the heat energy is generated by burning is termed
A) heat release rate.
B) peak heat release rate.
C) fuel load.
D) fire load. - (CORRECT ANSWER)Heat Release Rate
The variables considered when determining a fuel's heat release rate include all of
the following EXCEPT
A) the heat of combustion.
B) mass loss rate or burning rate.
C) surface area.
D) ignition temperature. - (CORRECT ANSWER)Ignition Temperature
The ________ of a material refers to the amount of energy emitted per unit of fuel
mass consumed, and it varies by fuel
A) heat of combustion
B) specific heat
C) heat release rate
D) peak heat release rate - (CORRECT ANSWER)Heat of Combustion
The ________ is the loss of mass over time from the fuel's surface when undergoing
combustion
A) heat of combustion (ΔHc )
B) specific heat (cp)
C) mass burning flux ()
D) peak heat release rate - (CORRECT ANSWER)Mass Burning Flux
The ________, often referred to as the burning rate, is the rate at which the fuel is
losing mass while undergoing combustion and is usually expressed in kilograms per
second (kg/s) or grams per second (g/s).
A) heat of combustion (ΔHc )
B) mass loss rate ()
C) heat release rate ()
D) peak heat release rate - (CORRECT ANSWER)Mass Loss Rate
________ is used to describe the amount of energy that is required to produce a unit
mass of flammable vapor from a combustible that is initially at ambient temperatures
A) Heat of combustion
B) Specific heat
C) Heat of gasification
D) Peak heat release rate - (CORRECT ANSWER)Heat of Gastrification
The four ideal fire growth curves include all of the following EXCEPT:
A) slow.
B) infinite.
, C) ultrafast.
D) fast. - (CORRECT ANSWER)Infinite
Heat release rates of pool fires are dependent on which of the following?
A) Surface area exposed to air
B) Heat of combustion of the fuel
C) Both A and B
D) None of the above - (CORRECT ANSWER)Both A and B
Liquids evolving vapors that can undergo combustion with relative ease are
considered to be:
A) ignitable liquids.
B) flammable liquids.
C) combustible liquids.
D) viscous. - (CORRECT ANSWER)Ignitable Liquids
What is the main measurement used when considering the ignitability of liquids
A) Flash point
B) Fire point
C) Flame point
D) Boiling point - (CORRECT ANSWER)Flash Point
13. Which of the following sets a basis for classification of flammability of liquids?
2/2
A) NFPA 30
B) NFPA 72
C) NFPA 921
D) NFPA 101 - (CORRECT ANSWER)NFPA 30
14. Under NFPA classification, which of the following presents the most significant
threat of producing ignitable vapors at ambient conditions?
2/2
A) Class IA
B) Class IB
C) Class IC
D) Class II - (CORRECT ANSWER)Class 1A
15. Under NFPA classification, which of the following presents the least significant
threat of producing ignitable vapors at ambient conditions?
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A) Class IA
B) Class IIIB
C) Class IC
