Chapter 4 Flashcards
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Define Fire
Chapter 4, pg78, Chemistry of Fire
Fire is a rapid, self-sustaining oxidation process accompanied by the evolution of heat and light in varying intensities.
At what temperature does fuel continue combustion without any external input of heat, becoming self-sustaining?
* Melting temperature
* Ignition temperature
* Combustion temperature
* Fire temperature
At what temperature does fuel continue combustion without any external input of heat, becoming self-sustaining?
* Melting temperature
* Ignition temperature
* Combustion temperature
* Fire temperature
Chapter 4, page 89, Chemistry of Fire
Cooking materials such as cooking oils, fats, and grease fall into which fire classification?
* Class D
* Class A
* Class C
* Class K
Cooking materials such as cooking oils, fats, and grease fall into which fire classification?
* Class D
* Class A
* Class C
* Class K
Chapter 4, page 99, Classification of Fires
Fire is a rapid, self-sustaining ________ process, accompanied by the evolution of heat and light in varying intensities.
* exothermic
* molecular
* endothermic
* oxidation
Fire is a rapid, self-sustaining process, accompanied by the evolution of heat and light in varying intensities.
* exothermic
* molecular
* endothermic
* oxidation
Chapter 4, page 86, Introduction
Flammable and combustible liquids fall into which fire classification?
* Class D
* Class A
* Class C
* Class B
Flammable and combustible liquids fall into which fire classification?
* Class D
* Class A
* Class C
* Class B
Chapter 4, page 99, Classification of Fires
In which stage has the fire run out of available fuel or oxygen?
* Free burning
* Incipient
* Flashover
* Decay
In which stage has the fire run out of available fuel or oxygen?
* Free burning
* Incipient
* Flashover
* Decay
Chapter 4, page 101, Classification of Fires
In which stage of fire are all available fuels in the fire’s perimeter burning?
* Incipient
* Free burning
* Decay
* Flashover
In which stage of fire are all available fuels in the fire’s perimeter burning?
* Incipient
* Free burning
* Decay
* Flashover
Chapter 4, page 100, Classification of Fires
In which stage of fire does the fire reach a point at which it no longer needs input heat from outside sources to continue burning?
* Free burning
* Flashover
* Decay
* Incipient
In which stage of fire does the fire reach a point at which it no longer needs input heat from outside sources to continue burning?
* Free burning
* Flashover
* Decay
* Incipient
Chapter 4, page 100, Classification of Fires
The relative density of vapor or gas as compared to air is its:
* specific gravity.
* vapor density.
* boiling point.
* flash point.
The relative density of vapor or gas as compared to air is its:
* specific gravity.
* vapor density.
* boiling point.
* flash point.
Chapter 4, page 93, Physics of Fire
The Steiner Tunnel test assesses smoke density and and is mandated for many commercial building materials.
* flame color
* flame burn
* flame reach
* flame spread
The Steiner Tunnel test assesses smoke density and and is mandated for many commercial building materials.
* flame color
* flame burn
* flame reach
* flame spread
Chapter 4, page 91, Physics of Fire
The transfer of heat by wavelengths of energy is which of the following methods of heat transfer?
* Conduction
* Convection
* Direct contact
* Radiation
The transfer of heat by wavelengths of energy is which of the following methods of heat transfer?
* Conduction
* Convection
* Direct contact
* Radiation
Chapter 4, page 97, Heat Transfer
The transfer of heat through a circulating medium, such as liquids or gases, is indicative of which of the following methods of heat transfer?
* Direct contact
* Radiation
* Convection
* Conduction
The transfer of heat through a circulating medium, such as liquids or gases, is indicative of which of the following methods of heat transfer?
* Direct contact
* Radiation
* Convection
* Conduction
Chapter 4, page 97, Heat Transfer
What are the two most common elements in fuels?
* Carbon and hydrogen
* Oxygen and hydrogen
* Carbon and oxygen
* Carbon and nitrogen
What are the two most common elements in fuels?
* Carbon and hydrogen
* Oxygen and hydrogen
* Carbon and oxygen
* Carbon and nitrogen
Chapter 4, page 88, Chemistry of Fire
What is the minimum temperature of a liquid at which it gives off sufficient vapors to form an ignitable mixture with air, although ignition will not be sustained?
* Flash point
* Volatility
* Boiling point
* Vapor density
What is the minimum temperature of a liquid at which it gives off sufficient vapors to form an ignitable mixture with air, although ignition will not be sustained?
* Flash point
* Volatility
* Boiling point
* Vapor density
Chapter 4, page 93, Physics of Fire
When the vapor pressure equals atmospheric pressure at the surface of the liquid, what has been reached?
* Boiling point
* Vapor density
* Specific gravity
* Flash point
When the vapor pressure equals atmospheric pressure at the surface of the liquid, what has been reached?
* Boiling point
* Vapor density
* Specific gravity
* Flash point
Chapter 4, page 92, Physics of Fire
