1. Fire Dynamics

Question 1

Meeting point between

fire science,

material science,

fluid dynamics of gas,

and heat transfer.

Answer 1

Fire Dynamics

Page 11

Question 2

The study of matter and energy and includes chemistry and physics.

Answer 2

Physical science

Page 12

Question 3

Capacity to perform work

Answer 3

Energy

Page 12

Question 4

Occurs when a force is applied to an object over a distance or when a substance undergoes a chemical,physical, or biological change.

Answer 4

Work

P12

Question 5

The fire triangle illustrates the elements and conditions required for this mode of combustion.

Answer 5

Nonflaming combustion

P17

Question 6

Occurs when a gaseous fuel mixes with oxygen in the correct ratio and heats to ignition temperature.

Answer 6

Flaming combustion

P17

Question 7

The fire tetrahedron accurately reflects the conditions required for ______ combustion.

Answer 7

Flaming

P17

Question 8

Complete combustion of methane in air results in the production of

____
____
____
and ____

Answer 8

Heat
Light
Water Vapor
and Carbon Dioxide

P19

Question 9

A toxic and flammable product of incomplete combustion of organic (carbon containing) materials.

Answer 9

Carbon Monoxide (CO)

P19

Question 10

Chemical asphyxiant. Poisoning is sometimes a lethal condition in which molecules attached to the hemoglobin decreasing the bloods ability to carry oxygen. Does not act on the body but excludes oxygen from the blood leading to hypoxia of the brain and tissue.

Answer 10

CO Poisoning

P20

Question 11

Enters the bloodstream and prevents the blood from using oxygen properly, killing the cell.

Answer 11

Hydrogen Cyanide (HCN)

P21

Question 12

The force per unit of area applied perpendicular to a surface.

Answer 12

Pressure

P22

Question 13

The thermal kinetic energy needed to release the potential chemical energy in fuel

Answer 13

Heat

P22

Question 14

The measurement of the average kinetic energy in the particles of a sample of matter

Answer 14

Temperature

P23

Question 15

Common sources of heat that result in the ignition of a fuel. Most frequently ignition source in a structure fire.

3 Answers

Answer 15

Chemical

Electrical

Mechanical

P 23

Question 16

The most common source of heat in combustion reactions.

Answer 16

Chemical energy

P23

Question 17

Electrical current flowing through a conductor produces heat.

Answer 17

Resistance heating

P25

Question 18

When the current flowing through a conductor exceeds its design limits.

Answer 18

Overcurrent or overload

P25

Question 19

The transfer of heat from one point or object to another is part of the study of ____.

Answer 19

Thermodynamics

P26

Question 20

Heat transfer from the initial fuel package (burning object) to other fuels in and beyond the area of fire origin affects the growth of any fire and is part of the study of ____.

Answer 20

Fire Dynamics

P26

Question 21

The oxidized or burned material/substance in the combustion process.

Answer 21

Fuel/ Reducing Agent

P31

Question 22

____ fuels, such as hydrogen or magnesium, do not contain carbon.

Answer 22

Inorganic

P31

Question 23

The rate at which energy transfers.

The rate at which energy converts from one form to another.

Answer 23

Power

P32

Question 24

The standard international (SI) unit for power.

Answer 24

Watt (W)

P32

Question 25

In terms of our behavior, ____ Is the heat release rate during combustion.

Answer 25

Power

P32

Question 26

Heat Release Rate is expressed in ____

Answer 26

Kilowatts (kW)

or

Megawatts (MW)

P 32

Question 27

Vapor pressure of the substance in the amount of thermal energy applied to it determines the ____.

Answer 27

Rate of Vaporization

P 34

Question 28

Temperature at which a piloted ignition of sufficient vapors will begin a sustained combustion reaction. Commonly used to indicate the flammability hazard of liquid fuels.

Answer 28

Fire Point

P34

Question 29

Describes the extent to which a substance will mix with water

Answer 29

Solubility

P34

Question 30

At various points in the combustion of methane, this process results and production of ____ and ____, which are both flammable and toxic.

Elements released when methane molecules break down ____ (2 Answers)

These combine combine with oxygen to form ____ and ____.

Answer 30

Carbon Monoxide 
&
Formaldehyde 
———
Carbon 
&
Hydrogen
———
Carbon Dioxide (CO)
&
Water (H2O)

P40

Question 31

Three key factors that control how the fire develops:

Answer 31

Fuel Properties

Ventilation Available

Heat Conservation

P41

Question 32

Occurs when all combustible materials in a compartment are burning at their peak heat release rate based on available oxygen.

Answer 32

Fully Developed

P42

Question 33

Understanding fire dynamics is largely understanding of everything that happens during the ____.

Answer 33

Growth Stage

P44

Question 34

In a structure fire, the method by which the fire receives the needed oxygen to sustain the combustion reaction occurs through one of many ____.

Answer 34

Flow Paths

P59

Question 35

The total quantity of combustible contents of a building, space, or fire area is referred to as ____.

Answer 35

Fuel Load

P65

Question 36

Any open space with no complete fire barrier dividing it

Answer 36

Compartment

P70

Question 37

The place were fire dynamics and building construction interact

Answer 37

Structure Fire

P70

Question 38

Term used to describe the temp at which steel begins to weaken:

Answer 38

Critical temperature of steel

Page 73