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Fire Basic > CH. 4, CH. 5, CH. 12 > Flashcards

CH. 4, CH. 5, CH. 12 Flashcards

1
Q

Understand what devices are used for comms by hearing impaired persons

A

TTY Teletype TDD Telecommunications device for the deaf.

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2
Q

What does a fire department communications center compare itself with the human body?

A

The brain

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3
Q

In the U.S. what percentage of people have access to the 911 system?

A

Over 96%

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4
Q

What are megahertz?

A

Radios work by broadcasting electronic signals on certain frequencies, which are designated in units of megahertz

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5
Q

How long should it take the time the call comes in until units are dispatched?

A

90 seconds

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5
Q

What should telecommunicators need to know in order to institute a dispatch?

A

The exact location must be obtained so that units can respond directly to the scene

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6
Q

How do calls majority of the time come in to dispatch

A

Landline and cellular phone

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7
Q

Who recommends the use of plain language?

A

The National Incident Management (NIMS) and NFPA Standards

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8
Q

How many steps are needed in processing a report

A

5 major steps

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9
Q

What is time marking

A

communication prompts the IC to report at set intervals which allows the IC to assess the progress of the incident and decide whether the strategy or tactics should be changed.

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10
Q

Understand what a ALI system is

A

Automatic Location Identification is a series of data elements that informs the recipient of the location of the alarm

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11
Q

Understand what ANI is

A

Automatic number identification is a series of alphanumeric characters that informs the recipient of the source of the alarm

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12
Q

Understand TDD is

A

(TDD) telecommunications device for the deaf

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13
Q

What is a MayDay

A

Indicates that a firefighter is lost, or is missing, or requires immediate assistance.

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14
Q

What happens when a invalid address is entered into the CAD system

A

The CAD system will prompt the telecommunicator to ask the caller for more information.

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15
Q

What is a base station

A

A stationary radio transceiver with an integral AC power supply

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16
Q

What is a Automatic vehicle locator system

A

Allows you to track the vehicle

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17
Q

What are handheld radios

A

A portable radio is a hand-held two-way radio small enough for a firefighter to carry at all times

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18
Q

Know the 5 step process of the emergency medical service dispatch

A

Call receipt, Location validation, classification and prioritization, unit selection, dispatch

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19
Q

What is a direct Line

A

A telephone that connects two predetermined points

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20
Q

Understand what a duplex

A

A radio system that is able to simultaneously use two frequencies per channel; one frequency transmits and the other receives messages. Such a system uses a repeater site to transmit messages over greater distance than is possible with a simplex system

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21
Q

What takes priority over all other communications

A

Emergency message AKA -“Mayday”

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22
Q

What should be checked for when there is no voice of a call off a dispatch

A

TDD and TTY

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23
Q

What is the Federal Communications Commission

A

The federal authority that oversees radio communications in the United States.

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24
Q

What is a evacuation signal

A

A distinctive sign intended to be recognized by the occupants as requiring of the building

25
Q

Know NFPA standard 1061

A

Standard for Public Safety Telecommunications Personnel Professional Qualifications

26
Q

What is a call box

A

A system of telephones connected by phone lines, radio equipment, or cellular technology to a communications center of fire department

27
Q

Understand what Class C fires are

A

Fires including Electrical equipment

28
Q

Understand what vapor density is

A

The weight of an airborne concentration (vapor or gas) as compared to an equal volume of dry air

29
Q

Understand what endothermic reaction is

A

Reactions that absorb heat or requires heat to be added

30
Q

Understand what a Class B fire is

A

Flammable or combustible liquids and gasses

31
Q

Understand what is flashover and its components

A

Transition from a fire that is growing by igniting one type of fuel to another, to a fire where all of the exposed surfaces have ignited.

32
Q

What is mechanical energy

A

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

33
Q

Understand convection

A

The heat of the fire warms the gasses and particles in the smoke.

34
Q

Understand conduction

A

Process of transferring heat to and through one solid to another.

35
Q

Understand oxidation

A

Process of chemically combining oxygen with another substance with another substance to create a new compound.

36
Q

Understand matter

A

Solid, liquid, or gas

37
Q

Understand the color of smoke and what causes that color

A

White or clear smoke is further from the seat of a fire, gray is close to the seat, and black is the seat

38
Q

What are the fire extinguishment choices

A

A. Cooling the burning material
B. Excluding oxygen from the fire
C.Removing fuel from the fire
D.Interrupting the chemical reaction

39
Q

What is heat flux

A

The measure of rate that heat is transferred to a surface, usually Displayed as Kw/m^2 or Btu/ft^2

40
Q

What is thermal layering

A

The phenomenon of gases forming into layers according to temperature

41
Q

Understand combustion

A

Rapid chemical process in which the combination of a substance with oxygen produces heat and light.

42
Q

Understand backdraft

A

Caused by the introduction of oxygen, a change of ventilation profile, into an enclosure where the superheated gasses and contents are already hot enough for ignition but do not have sufficient oxygen to combust.

43
Q

Understand flow path

A

The volume of space in which the cooler air is being drawn into the fire and the volume of space where the hotter gases and smoke are escaping from the fire

44
Q

Turbulence smoke indicates what

A

Possibility of a backdraft

45
Q

Understand ignition temperature

A

The minimum temperature at which a fuel will ignite and continue to burn

46
Q

What is a fire point

A

Lowest temperature at which liquid produces enough vapor to sustain a continuous fire

47
Q

Understand the fire stages of fire development

A

Incipient stage is when there is an adequate supply of fuel, oxygen, and heat to ignite.

Growth stage is when the fire has spreaded and begins to grow.

Fully developed stage is when the fire is burning all the fuel in the area and has reached its peak.

Decay stage is when the fire has run short on one of the three components of the fire triangle and is beginning to die.

48
Q

Understand rollover

A

Spontaneous ignition of hot gasses in the upper levels in a room or compartment

49
Q

Understand what spontaneous heating is

A

typically occurs when the quantity of air passing through the coal is sufficient to support oxidation but is inadequate to carry off the heat produced by the oxidation reaction.

50
Q

Understand what is thermal radiation

A

Thermal radiation is electromagnetic radiation generated by the thermal motion of particles in matter.

51
Q

Understand the components of a BLEVE

A

Boiling-liquid/expanding vapor explosion. When a liquid fuel is stored under pressure.

52
Q

Know the flash point of certain accelerants

A

Gasoline(-45 F/-43 c)
Acetone(-4 F/-20 c)
#2 grade diesel(125 F/52 c)

53
Q

What material has the highest thermal conductivity

A

Copper(385 W/m-k)

54
Q

Understand what happens when you open doors of rooms filled with smoked

A

You introduce oxygen back to the mixture and it can reignite

55
Q

When should we use a blanket drag

A

When the victim is not wearing clothing

56
Q

When should we use a aerial platform

A

During rescue operations, is much safer and dependable than a ground ladder

57
Q

During a fire where do kids like hide

A

In a closet, bath tub, or under furniture

58
Q

Understand position during OVEIS

A

Requires a team of two rescuers, one officer and one searcher.
Officer stays outside to assess, communicate, and monitor.

59
Q

How should an unconscious person be carried down a ladder

A

Cradled in arms as the firefighter descends the ladder

60
Q

Classes of Fire

A

Class A- solids
Class B- Liquids
Class C- Electrial
Class D- metals
Class K- Cooking Oils

Fire Basic (14 decks)

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