LESSON 5

Question 1

the result of the chemical combination of a
combustible material (fuel) with oxygen in the
presence of enough heat.

Answer 1

Fire

Question 2

(one that ordinary extinguishing agents can extinguish) results from combustion of fuel, heat, and oxygen.

Answer 2

Ordinary fire

Question 3

When a substance that will burn is heated to a certain critical temperature called its “_”

Answer 3

Ignition temperature

Question 4

a material, that
contains chemical elements that will react with oxygen, and under proper conditions, produce fire.

Answer 4

Fuel or Combustible material

Question 5

we need 16% oxygen to sustain fire.

Answer 5

Oxygen

Question 6

vapors of gases, which
are distilled during burning process of a material, are carried into the flame.

Answer 6

Chemical Chain Reaction

Question 7

3 Methods of Heat Transfer

Answer 7

Conduction
Convection
Radiation

Question 8

direct conduct of heat from one body to another.

Answer 8

Conduction

Question 9

the circulating medium of
heat transfer, occurs upward.

Answer 9

Convection

Question 10

when energy travels though space or material in waves.

Answer 10

Radiation

Question 11

Products of Combustion

Answer 11

Fire Gases
Flame
Heat
Smoke

Question 12

refers to the vaporized
products of combustion.

Answer 12

Fire Gases

Question 13

is the visible luminous body of a burning gas, which becomes hotter and less luminous when it is mixed with increased amounts of oxygen.

Answer 13

Flame

Question 14

is a form of energy, which is measured in degrees of temperature to signify its intensity. It is responsible for the spread of fire.

Answer 14

Heat

Question 15

is a visible product of incomplete combustion.

Answer 15

Smoke

Question 16

Phases of Burning

Answer 16

1. Incipient Phase or Beginning Phase
2. Flame Producing Phase or Free -
   Burning Phase
3. Smoldering Phase

Question 17

Fires involving ordinary
combustible materials, such as wood, cloth,
paper, rubber and many plastics.

Answer 17

Class A Fires

Question 18

water is used in
cooling or quenching effect to reduce the
temperature of the burning material below its
ignition temperature.

Answer 18

Class A Extinguishment

Question 19

Fires involving flammable
liquids, greases and gases

Answer 19

Class B Fires

Question 20

The smothering or blanketing effect of oxygen exclusion is most
effective. Other extinguishing methods include removal of fuel and temperature reduction.

Answer 20

Class B Extinguishment

Question 21

Fires involving energized
electrical equipment.

Answer 21

Class C Fires

Question 22

This fire can sometimes be controlled by a non-conducting extinguishing agent. The safest procedure is always to attempt to de-energize high voltage circuits and treat as Class A or B fire depending upon the fuel involved.

Answer 22

Class C Extinguishment

Question 23

Fires involving combustible metals, such as magnesium, titanium,
zirconium, sodium and potassium.

Answer 23

Class D Fires

Question 24

Special extinguishing
agents are available for control of fire in each
of the metals and are marked specifically for
that metal.

Answer 24

Class D Extinguishment

Question 25

Proper Use of Fire Extinguisher

Answer 25

Pull pin Aim Squeeze Sway

Question 26

● Be kept fully charge and in their designated places ● Be located along normal paths of travel ● Not be obstructed or obscured from view ● Not be mounted higher than 5 ft. or 1.5 m. to the top of the extinguisher if they weigh 40 lbs. Or 80 kg. Or less.

Answer 26

Requirements for Fire Extinguish

Question 27

is a flexible material use to convey water under pressure from the source of water to the scene of fire.

Answer 27

Fire Hose

Question 28

Types of Fire Hose

Answer 28

Woven-jacket, rubber lined Wrapped or Braded in Plies Unlined Hose

Question 29

Fire service _ are similar to any other ladders in shape, design and purpose, but the way in which they are use requires them to be constructed under rigid specifications.

Answer 29

Ladders

Question 30

Types of ladders

Answer 30

Straight Ladder – also called wall ladder ● Extension Ladder ● Roof Ladder ● Collapsible Ladder ● Aerial Ladder ● Tower Ladder

Question 31

is the careful removal of victim from the unsafe place of safety.

Answer 31

Rescue Operation

Question 32

the last line of defense in Industrial Hygiene control; it does not eliminate the hazard; it aids in controlling individual exposure

Answer 32

Personal Protective Equipment (PPE)

Question 33

Hazard Identification

Answer 33

● Agent ● Physical Characteristic ● Route of Entry ● Effect from exposure

Question 34

PPE Program Components

Answer 34

1) Selection 2) Fitting 3) Health Aspects 4) Issue 5) Proper Use 6) Compatibility 7) Maintenance 8) Disposal 9) Information & Training 10) Supervision 11) Reviews 12) Checklist

Question 35

1. Protection from direct physical injuries

Answer 35

(flying/falling objects, burns, abrasive and sharp edges)

Question 36

2. Protection from biological, chemical hazards and indirect physical injuries

Answer 36

(noise, heat)