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What is anything that accupies space and has mass?
Matter
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What is a chemical reaction between two or more materials that changes the materials and produces heat, flames, and toxic smoke?
Exothermic heat reaction
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What is a chemical reaction in which a substance aborbs heat energy?
Endothermic heat reaction
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What is an exothermic chemical reaction called that releases energy in the form of heat and sometimes light?
Combustion
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How are modes of combustion differentiated?
Based on where the reaction is occurring
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What are the components of the fire triangle?
Fuel, Heat, and Oxygen
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What are the components of the fire tetrahedron?
Heat, Oxygen, self-sustained chemical chain reaction, and Fuel
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Energy possesed by an object that may be released in the future is known as?
Potential Energy
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Type of engery possesed by a moving object?
Kinetic Energy
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The capacity to perform work is known as?
Energy
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What is the measure for heat energy in the International System of Units?
Joule
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What is the measure for heat energy in the customary system?
British Thermal Unit
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The chemical decomposition of a substance through the action of heat is known as?
Pyrolysis
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Two forms of ingnition?
Piloted, and Auto-ingnition
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What is the temperature to which the surface of a substance must be heated for ignition and self-sustained combustion to occur?
Auto-ignition temperature
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Most common source of heat in combustion reactions?
Chemical heat energy
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What is a form of chemical heat energy that occurs when a material increases in temperature without the addition of external heat?
Self-heating
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What happens to the rate of the oxidation reaction as more heat is generated and held by the materials insulating the fuel?
It increases
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What type of energy is generated by friction or compression?
Mechanical heat energy
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The transfer of heat within a body or to another body by direct contact?
Conduction
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The tranfer of heat energy from a fluid to a solid surface?
Convection
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Transmission of energy as an electromanetic wave?
Radiation
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Material that absorbs heat but does not participate actively in the combustion reaction?
Passive agent
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The material or substance being oxidized or burned in the combustion process is known as?
Fuel
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Gases with vapor desity of less than 1 will?
Rise
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The ratio of the mass of a given volume of a liquid compaired with the mass of an equal volume of water at the same temperature?
Specific gravity
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What is the transformation of a liquid to a vapor or gaseous state?
Vaporization
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What is the temperature at which a liquid gives off sufficant vapors to ignite, but not sustain, combustion?
Flash point
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What is the tempature at which sufficent vapors are being generated to sustain the combustion reaction?
Fire point
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The extent to which a substance will mix with water?
Solubility
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Materials that will mix in any proportion in water are?
Miscible
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The surface area of a fuel in proportion to its mass is called?
Surface-to-mass ratio
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What is the total amount of energy released when specific amount of a given fuel is oxidized?
Heat of combustion
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What is the energy released per unit of time as a given fuel burns?
Heat release rate
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What is known as the range of concentraions of the fuel vapor and air?
Flammable range
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Exposure to which of the following substances is frequently idenified as the cause of death for civilian fire fatalities?
Carbon Monoxide
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Substance that acts to prevent the body from using oxygen at the cellular level and is a byproduct of the combustion of polyurethane foam?
Hydrogen cyanide
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Substance is a product of complete combustion of organic materials and acts as a simple asphyxiant by displacing oxygen?
Carbon Dioxide
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Substance is a colorless liquid with a pungent choking odor, and is irritating to the mucous membranes?
Acetaldehyde
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Which of the following is substances is a colorless to clear yellew liquid with a bitter almond odor?
Benzaldehyde
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Colorless liquid with a weak, suffocating odor?
Isovaleraldehyde
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Type of fire involve flammable and combustible liquids and gases?
Class B
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Type of fire involve ordinary combustible materials?
Class A
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Type of fire involve energized electrical equipment?
Class C
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Type of fire containing combustible metal?
Class D
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Types of fire involve oils and greases normally found in commercial kitchens?
Class K
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When suffcient oxygen is available and fire development is controlled by the characteristics and configuration of the fuel is said to be?
Fuel controlled
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The 1st stage of the burning process in a confined space in which the substance being oxidized is producing some heat, but the heat has not spread to other substances nearby, is known as?
the incipient stage
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type of ingnition is caused when a material reaches its auto-ignition temp as the result of self-heating?
Non-piloted
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Mushrooming, in scientific terms, is known as?
ceiling jet
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thermal layering of gases is the tendency of gases to form into layers according to temp and is also known as?
Heat stratification
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Pockets of flame maybe observed moving through the hot gas layer above the neutral plane, a phenomenon known as?
Ghosting
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A condition wher the unburned fire gases accumulate at the top of the compartment ignite and flames propagate through the hot gas layer or across the ceiling is?
Rollover
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Temp in a compartment results in the simltaneaous ignition of all the combustible contents in the space?
Flash over
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Fire stage that occurs when all combustible materials in the compartment are burning is known as the?
Fully developed stage
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Fire stage in which the oxygen concentration falls to the point where flaming combustion can no longer be supported is known as the?
Decay stage
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Increase in ventilation can result in a deglagration called?
Back draft
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The most fundamental fuel characteristics influencing fire development in a compartment?
Mass and surface area
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All other things being equal, how will a fire in a large compartment develop compared to one in a small compartment?
More slowly
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One of the most common methods of fire control and extinguishment?
Cooling with water
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When does water have it's greatest effect on fire?
As it vaporizes into steam
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The preferred method of extinguishing pressurized gas fires?
Stopping the flow of liquid or gaseous fuel by closing a valve
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Used to extinguish rangetop fires when a cover is placed on a pan of burning grease?
Oxygen exclusion
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