Ch 2 Enhanced Fire Behavior Flashcards Preview

Structural Fire Fighting: Truck Company Skills And Tactics Second Edition > Ch 2 Enhanced Fire Behavior > Flashcards

Flashcards in Ch 2 Enhanced Fire Behavior Deck (23)
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1

Firefighters knowledge of fire behavior serves as a foundation for understanding the ____,___,And ___ ___ requires in firefighting operations.

Strategies, tactics, and specific task assignments

2

Developing expertise in the application of this knowledge requires an understanding of the ____ and ___

Science of fire dynamics and practical fireground experience

3

-an exothermic chemical reaction that is a self-sustaining process of rapid oxidation of a fuel that produces heat and light

Combustion

4

Heat, fuel, and oxygen are all required for this ___ reaction to occur

Chemical

5

_____ is a simple model that explains non flaming or surface combustion (smoldering)

Fire triangle

6

Flaming combustion is more accurately explained using the model

Fire tetrahedron

7

Heat is a form of energy and exists in two states

Potential and kinetic

8

-stored energy possessed by an object that can be released in the future to perform work

Potential energy

9

-the energy possessed by a moving object

Kinetic energy

10

Energy is the capacity to perform

Work

11

___ occurs and ____ is expended when a force is applied to an object over a distance

Work ,energy

12

In the case of ___ work means increasing temperature, causing the average level of kinetic energy within a molecule of a substance to ____

Heat , increase

13

___ are the unit of measure for heat energy

Joules

14

While a joule is defined as being equal to ___ newton over a distance of one meter, in fire you should think of it as heat

One

15

It takes ___ joules to raise the temp of one kilogram of water one degree C

4186 joules

16

___BTU is the amount of heat required to raise the temperature of one pound of water one degree F

1 BTU

17

1 BTU equals approximately __ joules

1100 joules

18

___ is the energy component of the fire tetrahedron

Heat

19

Applying additional heat causes ___ (the chemical decomposition of a substance through the action of heat) in solid fuels and ___ is liquid fuels

Pg.23

Pyrolysis
Vaporization

20

There are two forms of ignition - ____ and ____

Piloted ignition and auto ignition

21

Piloted ignition occurs when a mixture of fuel and oxygen encounters an ___ ___ with sufficient heat entertainment to start the ____ reaction.

Ignition source
Combustion

22

The characteristics of the compartment in which a fire is burning can also affect the ___ ___ ___

Heat release rate

23

In general there are two mechanisms that can induce flashover - ____ and ____

Radiation and ventilation
P.47