Chapter 1 Flashcards

1
Q

What are class A fires?

A

Ordinary combustible materials
Wood, paper, textile, etc

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2
Q

Class A fire extinguishers are marked with?

A

Green triangle containing letter A

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3
Q

What are class B fires?

A

Flammable liquids, combustible liquids, petroleum, greases, tars, oils

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4
Q

Class B fire extinguishers are marked with

A

Red square with letter B

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5
Q

What are class C fires?

A

Energized electrical equipment

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6
Q

Class C fire extinguishers are marked with?

A

Blue circle containing letter C

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7
Q

What are class D fires?

A

Combustible metals
Aluminum, magnesium, titanium, sodium, and potassium

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8
Q

Class D fire extinguisher are marked with

A

Five point yellow star containing letter D

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9
Q

What are class K fires?

A

Vegetables oils, animal oils, or fat in cooking appliance fire

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10
Q

Class K fire extinguisher is marked with?

A

Marked with letter K or a black hexagon containing letter K

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11
Q

Heat is generated when a combustible material comes in contact with ___

A

A heat source

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12
Q

What are the 3 ways heat travels and causes a fire to extend?

A

Conduction, convection and radiation

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13
Q

Conduction is?

A

Heat transferred by conduction through contact of material

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14
Q

Heat that is conducted by a gas or liquid

A

Convection

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15
Q

Heat from a fire is _____ in all directions, including back toward the fire, which helps accelerate the chain reaction process

A

Radiation

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16
Q

What are the 5 stages of fire?

A
  1. Ignition
  2. Growth
  3. Flashover
  4. Fully developed
  5. Decay
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17
Q

The flashover stage is the transition between the ___

A

Growth stage and fully developed stage

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18
Q

____ is the backbone of a fire department

A

Training

19
Q

____ is the first priority and must precede fire attack under backdraft conditions

A

Ventilation

20
Q

An excellent method to keep training interesting is?

A

To foster a competitive spirit among various units

21
Q

The responsibility of pre planning starts with?

A

The fire chief

22
Q

The pre planning begins with?

A

On site survey

23
Q

A problem facing the initial incident commander at a fire scene is?

A

How much water will be needed for effective fire control

24
Q

The national fire academy quick needed fire flow calculation is?

A

Length x width / 3 = gpm

25
Q

1 1/2 inch or 1 3/4 inch hose line flows?

2 1/2 inch hose line flows?

A

125-175 gpm

250 gpm

26
Q

_____ is responsible for many areas. These include training, physical fitness, and mental readiness of the entire crew

A

Company officer

27
Q

______ is a major part of leadership

A

Delegation

Tool used to develop not avoid work.
Permits subordinates to assume responsibility and to make decisions

28
Q

_____ starts with the ability to possess self discipline

A

Leadership

29
Q

_______ creates unnecessary excitement that can be contagious and lead to poor decision making and chaotic incident scene

A

Shouting

30
Q

The attitude of safety must be initiated at ____ and be fully understood and enforced at all ranks

A

Fire chief level

31
Q

An accident while responding places at risk?

A
  1. Those on the apparatus
  2. Pedestrians
  3. The drivers and passengers of other vehicles
  4. Those who placed the initial call for help
32
Q

A simultaneous ignition of the surface area of the combustible materials in the fire space

A

Flashover

33
Q

The pressurized water extinguisher (PW) can produce a ____ foot stream of water

A

40-50 foot

34
Q

Class C fires are extinguished with

A

Dry chemical extinguisher and carbon dioxide extinguishers

35
Q

What is the benefit of using carbon dioxide extinguishers?

A

They leave no residue

36
Q

Purple K extinguishers are designed for?

A

Class C fires

And B

37
Q

Conduction

A

Heat is transferred by conduction through contact of materials. When the materials touch the hotter material gives the less hotter material heat until they are equal

The ease of the spread of fire via conduction depends upon the materials involved.

Metal is a good heat conductor

38
Q

Convection

A

Heat that is conducted by a gas or liquid

Air currents allow heat to rise through a structure, once the air currents reach the top of a fire area, the smoke and heat will start to spread laterally

The movement of heated air currents can spread the fire to uninvolved areas

39
Q

Radiation

A

Heat from a fire is radiated in all directions, including back towards the fire, which helps accelerate the chain reaction process

40
Q

Difference between flashover and backdraft

A

In flashover, there is adequate oxygen available for combustion and the fire is free burning prior to flashover. In a backdraft, there is insufficient oxygen for active burning, and the fire is smoldering

41
Q

Professional drivers drive a minimum of 35 hours a week. A firefighter actual time driving a fire vehicle can be

A

10 hours a week, but typically much less

42
Q

Stage of burning process where energy release is at its maximum rate and is limited only by availability of fuel and oxygen

A

Fully developed stage

43
Q

Fire begins to develop, depending on the amount of fuel present and oxygen available

A

Growth stage

44
Q

The stage of a fire at which the combustible contents of a compartment are totally in flame

A

Flashover