Definitions

Question 1

flash over heat range
time itcan occur

carbon monoxide heat range

Answer 1

Temperatures within the room rapidly climb to 480 - 650° C within the room and can spike to temperatures of 12000C in the smoke cloud.

90 seconds

The carbon monoxide in the air is a very combustible fuel with a flammable range of 12.5% to 74%. It ignites at 610 C causing at sharp spike in the rooms temperature

Question 2

Ventilation

Answer 2

Ventilation, as applied to firefighting, is the planned and systematic, release and removal of heated air, smoke, and toxic gases from a confined area and the controlled replacement of these products of combustion with a supply of cooler, fresh air.

Question 3

wildland urban

Answer 3

wildland interface is any area where structures are located adjacent to, or among comb wildland fuels.

Question 4

flashpoint

Answer 4

Flashpoint is the minimum temperature at which a liquid gives off sufficient vapors to form an ignitable mixture with air near the liquid’s surface

Question 5

conduction

Answer 5

Is the transfer of heat through or between solids that are in direct contact

Question 6

hazmat

Answer 6

any material or substance, which even in normal use, poses a risk to health, safety, property or the environment.

Question 7

Ic and FC

Answer 7

the ic is the person with the overall responsibility and authority for the management of a second or multiple alarm system. the ic is responsible for supplying resources to assisr the fire commander

the fire commander is the person with the overall responsibility to manage dispatched respurces at an emergency event. this person is also responsible for developing the initial strategy determining tactical prioritiys and assigning person el to sectors for the successful mitigation of the emergency

Question 8

fire stream

Answer 8

a fire stream can be defined as a stream of water or other extinguishing agent after it leaves a fire hose and nozzle until it reaches the desired point

Question 9

The aim of drill

Answer 9

develop a sense of instinctive obediance in the individual ff, which will enable him or her to carry out orders at all times

Question 10

self heating

spontaneus combustion

Answer 10

Self-Heating • a form of oxidation, is a chemical reaction that increases the temperature of a material without the addition of external heat

Spontaneous Ignition • Initiation of combustion of a material by an internal chemical or biological reaction that has produced sufficient heat to ignite the material

Question 11

void spaces x 5

Answer 11

wall spaces and interiors sheathing

cieling spaces

joist spaces

large voids

fire extension

Question 12

flashover

Answer 12

Flashover is a very rapid transition from local burning of the contents within a compartment to widespread burning of all exposed fuels with that compartment

Question 13

saponification

Answer 13

 Saponification is a reaction that emulsifies the oil to form a type of soap that floats on the surface of the oil and prevents re-ignition of the oil vapors.

Question 14

hydraulics

Answer 14

the study of fluids at rest and in motion

Question 15

Combustion

Answer 15

Combustion defined is a 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

Question 16

solid stream adv and disadv

Answer 16

adv

greater vis
better reach and better pen
reduced nozzle pressure
normal thermal layering

dis
cannot be used for foam application
do not allow diff patterns
less heat aborption
never use solid streams

Question 17

Salvage

Answer 17

Salvage in the fire service consists of those methods and operating procedures allied to ff which aid in reducing forcible entry, fire, water, and smoke damage during and after fires

Question 18

convection

Answer 18

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

Question 19

radiation

Answer 19

Is the transmission of energy as an electromagnetic wave, such as light waves, radio waves, or X-rays, without an intervening medium.

Question 20

firepoint

Answer 20

Fire point is the temperature at which sufficient vapors are being generated to sustain the combustion reaction

Question 21

auto ignition

piloted ignition

Answer 21

Forms of Ignition Piloted Ignition
• Is the moment when a mixture of fuel and oxygen encounters an external heat (ignition) source with sufficient heat or thermal energy to start the combustion reaction. A furnace’s pilot light, a welder’s torch, or a smoker’s match is some common examples.
Auto Ignition (Non-Piloted)
• Is the initiation of combustion by heat but without a spark or flame to ignite the fuel gases or vapor.
• Auto Ignition Temperature – the lowest temperature at which a combustible material will ignite without an external source of ignition

Question 22

Fire

Answer 22

Fire defined is a rapid oxidation process, which is a chemical reaction resulting in the evolution of light and heat in varying intensities

Question 23

standpipe system

Answer 23

STANDPIPE SYSTEM (according to NFPA) is “An arrangement of piping, valves, hose connections and allied equipment installed in a building or structure.
 The purpose of the standpipe system is to shorten the length of supply and fire attack hose lines.
 A STANDPIPE is the riser portion of the system piping that delivers the water supply for hose connections and sprinklers on combined systems vertically from floor to floor.

Question 24

Overhaul

Answer 24

Overhaul consists of the search for and extinguishment of hidden or remaining fires; placing the building, its contents and the fire area in a safe condition; possibly determining the origin/cause of the fire and recognizing and preserving any evidence of arson.

Question 25

physical chang

chemical change

Answer 25

A physical change occurs when a substance remains chemically unchanged but changes in size, shape, or appearance.

A chemical change occurs when a substance changes from one type of matter into another, such as two or more substances combining to form compounds

Question 26

static pressure
normal operating pressure
ressidual pressure
flow pressure

Answer 26

 Static Pressure – pressure of the water when it is not moving.
 Normal Operating Pressure - pressures within water distribution system during
normal consumption demands.
 Residual Pressure - total available pressure not used to overcome friction or gravity when water is flowing through system.
 Flow Pressure - forward velocity pressure at any

Question 27

Forcible entry

Answer 27

The act of gaining access to a structure through means other then an open window or door using applied techniques and available tools which aid in reducing unnecessary damage to the occupancy or compromising structural integrity