Fire Behavior

Question 1

rapid chemical process that produces heat and usually light

Answer 1

Fire

Question 2

is made up of atoms and molecules

Answer 2

Matter

Question 3

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

Answer 3

Solids

Question 4

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

Answer 4

liquid

Question 5

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

Answer 5

gas

Question 6

gases in air maintain a constant composition of what

Answer 6

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

Question 7

form of energy

Answer 7

Fuels

Question 8

energy created by a chemical reaction

Answer 8

chemical reaction

Question 9

chemical reaction that produce heat

Answer 9

exothermic reaction

Question 10

chemical reaction that absorb heat

Answer 10

endothermic reaction

Question 11

prduced when ever oxygen combines with a combustable material

Answer 11

Heat

Question 12

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

Answer 12

mechanical energy

Question 13

caused by electromagnetic waves packaged in discrete bundles called photons

Answer 13

light energy

Question 14

created by splitting the nucleus of an atom

Answer 14

nuclear energy

Question 15

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

Answer 15

The law of Conservation of energy

Question 16

the three basic elements needed for combustion to occur

Answer 16

fuel, oxygen and heat. the fire triangle

Question 17

maintaing the process of slamming combustion

Answer 17

fire tetrahedon

Question 18

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

Answer 18

oxidation

Question 19

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

Answer 19

oxidation

Question 20

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

Answer 20

smoke

Question 21

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

Answer 21

thermal column

Question 22

when inert gas displaces oxygen

Answer 22

hypoxia

Question 23

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

Answer 23

conduction

Question 24

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

Answer 24

convection

Question 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

Answer 25

back draft

Question 26

a hot, high volume, high velocity, turbulent, ultra-dense black smoke that indicates an impending flashover or autoignition

Answer 26

black smoke

Question 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

Answer 27

boiling liquid/expanding vapor explosion (BLEVE)

Question 28

a burning structure

Answer 28

a box

Question 29

energy that is created or released by the combination or decomposition of chemical compounds

Answer 29

chemical energy

Question 30

a fire in ordinary combustable materials such as wood, cloth, paper, rubber and many plastics

Answer 30

Class A fire

Question 31

a fire in flammable liquids, combustable petroleum gases, tars, oils, oil based paints, solvents, lacquers, and flammable gases

Answer 31

class B fire

Question 32

a fire that involves energized electrical equipment

Answer 32

class C fire

Question 33

a fire in combustable metals such as magnesium, titanium, zirconium, sodium, lithium, and potassium

Answer 33

class D fires

Question 34

a fire in a cooking appliance that involves combustable cooking media. (vegetable or animal oils, and fats)

Answer 34

class K fire

Question 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

Answer 35

combustion

Question 36

a space completely enclosed by walls and a ceiling

Answer 36

compartment

Question 37

phase of fire development in which the fire has consumed either the available fuel or oxygen and is starting to die down

Answer 37

decay phase

Question 38

the condition where unburned fuel (pyrolysate) from the originating fire has accumulated in the ceiling layer to sufficient concentration

Answer 38

flame over (rollover)

Question 39

the lowest temp at which a substance releases enough vapors to ignite and sustain combustion

Answer 39

flame point (fire point)

Question 40

the upper and lower concentration limits of a flammable gas or vapor in the air that can be ignited

Answer 40

flammability limits