RST chapter 1

Question 1

oxidizers

Answer 1

are not combustible but will support or enhance comdustion

Question 2

combustion

Answer 2

a chemical process of oxidation that occurs at a rate fast enough to produce heat and light form of glow or flame

Question 3

fire

Answer 3

a rapid oxidation process which is a gas phase reaction resulting in the evolution of light and heat in varying intensities

Question 4

heat

Answer 4

form of energy associated with the motion of atoms or molecules in solids of liquids that transferred from a body to another

Question 5

energy

Answer 5

capacity to perform work

Question 6

kinetic energy

Answer 6

energy that a moving object posesses

Question 7

time line of oxidation

Answer 7

rust……smoldering fire…..methane burning……explosion

Question 8

types of energy

Answer 8

chemical…..thermal….mechanical…..electrical…………light…..nuclear……sound

Question 9

potential energy

Answer 9

amount of energy that an object can release ar some point in the future

Question 10

fire triangle

Answer 10

oxygen ….fuel…..heat….

Question 11

fire tetrahedron

Answer 11

four sides….fuel……heat….oxygen…..chemical chain reaction

Question 12

autoignition

Answer 12

initiation of combustion by heat but without a spark or flame

Question 13

boiling point of water

Answer 13

212 degrees

Question 14

room temperature

Answer 14

68 degrees

Question 15

mechanical energy

Answer 15

friction or compression

Question 16

conduction

Answer 16

transfer of heat thru and between solids

Question 17

convection

Answer 17

transfer energy by the circulation or movement of a fluid (liquid or gas)

Question 18

radiation

Answer 18

transmission of energy as electromagnetic waves such as light waves , radio waves, x rays,

Question 19

vapor density

Answer 19

density of gases in relation to air.
air has the vapor density of 1….less than 1 it will rise
greater than 1 it will sink

Question 20

surface to mass ratio

Answer 20

ratio of the surface area of the fuel to the mass of fuel

Question 21

growth stage

Answer 21

when rapid fire development usually occurs

Question 22

neutral plane

Answer 22

interface between the hot gas layers and the cool layer of air

Question 23

flashover

Answer 23

rapid transition from growth stage to the fully developed stage

Question 24

backdraft

Answer 24

instantaneous explosion or rapid burning of superheated gases that occurs when oxygen is introduced

Question 25

smoke explosion

Answer 25

occurs when a mixture of unburned fuel gases and oxygen comes in contact with an ignition source

Question 26

hydrogen cyanide (HCN) is ___________times more toxic than carbon monoxide (CO)

Answer 26

35

Question 27

at normal ambient temperatures materials can ignite and burn at oxygen concentrations as low as ?

Answer 27

15%

Question 28

Radiated heat begins to transfer more heat than convection?

Answer 28

When flames reach 2.5 feet high

Question 29

Studies has shown that scba face pieces begin to fail after 5 minutes of exposure to heat flux of ?

Answer 29

15KW/m2

Question 30

preincident planning

Answer 30

• occupancy type
• industrial process conducted on site
• hazardous materials in the vicinity
• location and function of fire protectionsystem controls and outlets
• building access routes
• utilities present

Question 31

ADA accessibilty requirements

Answer 31

• building entrances
• parking and loading zones
• elevators
• alarms (visible or audible)
• means of egress

Question 32

NFPA220 …three digit number code….4-4-3 or 3-3-2

Answer 32

• first digit - fire resistance in hours of exterior walls
• second digit - structural frames or columns and girders that support loads more than one floor
• third digit- floor construction

Question 33

concrete has

Answer 33

high compressive strength but low tensile strength