Fire Behavior Flashcards

(40 cards)

1
Q

rapid chemical process that produces heat and usually light

A

Fire

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2
Q

is made up of atoms and molecules

A

Matter

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3
Q

In structure fires, the building and most of its contents are

A

Solids

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4
Q

will assume the shape of the container in which it is placed

A

liquid

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5
Q

a type of fluid the has neither independent shape nor independent volume, but rather tends to expand

A

gas

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6
Q

gases in air maintain a constant composition of what

A

21% oxygen, 78% nitrogen, 1% other gases

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7
Q

form of energy

A

Fuels

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8
Q

energy created by a chemical reaction

A

chemical reaction

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9
Q

chemical reaction that produce heat

A

exothermic reaction

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10
Q

chemical reaction that absorb heat

A

endothermic reaction

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11
Q

prduced when ever oxygen combines with a combustable material

A

Heat

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12
Q

converted to heat when two materials rub against each other and create friction

A

mechanical energy

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13
Q

caused by electromagnetic waves packaged in discrete bundles called photons

A

light energy

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14
Q

created by splitting the nucleus of an atom

A

nuclear energy

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15
Q

energy cannot be created or destroyed by ordinary means. Energy how ever can be converted from one for to another.

A

The law of Conservation of energy

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16
Q

the three basic elements needed for combustion to occur

A

fuel, oxygen and heat. the fire triangle

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17
Q

maintaing the process of slamming combustion

A

fire tetrahedon

18
Q

process in which oxygen combines chemically with another substance to create a new compound

19
Q

rapid chemical process in which the combination of a substances with oxygen produces heat and light

20
Q

when fires burn with out an adequate supply of oxygen, which results in incomplete combustion

21
Q

a cylindrical area above a fire in which heated air and gasses rise and travel upwards

A

thermal column

22
Q

when inert gas displaces oxygen

23
Q

the process of transferring heat through matter by movement of the kinetic energy

24
Q

the circulatory movement that occurs in a gas or fluid such as air or water

25
a phenomenon that occurs when fire takes place in a confined area, as heat continues to produce flammable gas are heated above there ignition temps and oxygen is introduced, which creates an explosive force
back draft
26
a hot, high volume, high velocity, turbulent, ultra-dense black smoke that indicates an impending flashover or autoignition
black smoke
27
an explosion that occurs when a tank containing volatile liquids at the bottom and flammable gas at the top of the tank are heated to the point where the tank ruptures
boiling liquid/expanding vapor explosion (BLEVE)
28
a burning structure
a box
29
energy that is created or released by the combination or decomposition of chemical compounds
chemical energy
30
a fire in ordinary combustable materials such as wood, cloth, paper, rubber and many plastics
Class A fire
31
a fire in flammable liquids, combustable petroleum gases, tars, oils, oil based paints, solvents, lacquers, and flammable gases
class B fire
32
a fire that involves energized electrical equipment
class C fire
33
a fire in combustable metals such as magnesium, titanium, zirconium, sodium, lithium, and potassium
class D fires
34
a fire in a cooking appliance that involves combustable cooking media. (vegetable or animal oils, and fats)
class K fire
35
chemical process of oxidation that occurs at a rate fast enough to produce heat and usually light in the form of either a glow or a flame
combustion
36
a space completely enclosed by walls and a ceiling
compartment
37
phase of fire development in which the fire has consumed either the available fuel or oxygen and is starting to die down
decay phase
38
the condition where unburned fuel (pyrolysate) from the originating fire has accumulated in the ceiling layer to sufficient concentration
flame over (rollover)
39
the lowest temp at which a substance releases enough vapors to ignite and sustain combustion
flame point (fire point)
40
the upper and lower concentration limits of a flammable gas or vapor in the air that can be ignited
flammability limits