Chapter 6 Portable Fire Extinguishers

Question 1

Air-Aspirating foam nozzle

Answer 1

Foam nozzle designed to provide the aeration required to make the highest quality foam possible; most effective appliance for the generation of low-expansion foam

Question 2

Aqueous film forming foam (AFFF)

Answer 2

Synthetic foam concentrate that, when combined with water, can form a complete Vapor barrier over fuel spills and fires and is a highly effective extinguishing and blanketing agent on hydrocarbon fuels

Question 3

Class A fires & Label colour and shape

Answer 3

Fires involving ordinary combustibles such as wood, paper, cloth, and similar materials

Green triangle

Question 4

Class B fire & Label colour and shape

Answer 4

Fires of flammable and combustible liquids and gases

Red Square

Question 5

Class C fire @Label colour and shape

Answer 5

Fires involving energized electrical equipment

Blue Circle

Question 6

Class D fire & Label colour and shape

Answer 6

Fires of combustible metals such as magnesium, sodium, and titanium

Yellow Star

Question 7

Class K fire & Label colour and shape

Answer 7

Fires in cooking appliances and involve combustible cooking media, such as vegetable or animal oils and fats; commonly occurring in commercial cooking facilities such as restaurants and institutional kitchens

Black hexagon

Question 8

Dry chemical

Answer 8

Any one of a number of powdery extinguishing agents used to extinguish fires

Question 9

Dry powder

Answer 9

Extinguishing agent suitable for use on combustible metal fires

Question 10

Extinguishing agent

Answer 10

Any substance used for the purpose of controlling or extinguishing a fire

Question 11

Fire extinguisher

Answer 11

Portable fire fighting device designed to combat incipient fires

Question 12

Halogenated extinguishing agents

Answer 12

Chemical compounds (halogenated hydrocarbons) that contain carbon plus one or more elements from the halogen series. Halon 1301 and Halon 1211 are most commonly used as extinguishing agents for Class B and Class C fires

Question 13

Saponification

Answer 13

phenomenon that occurs when mixtures of alkaline based chemicals and certain cooking oils come into contact, resulting in the formation of a soapy film

Question 14

Smothering

Answer 14

Act of excluding oxygen from fuel

Question 15

Water mist extinguisher

Answer 15

Fire extinguisher capable of discharging atomized water through a special applicator; pressurized water mist extinguishers use distilled water, whereas back-pump water mist extinguishers use ordinary water

Question 16

Wet chemical system

Answer 16

Extinguishing system that uses a wet chemical solution as the primary extinguishing agent; usually installed in range hoods and associated ducting where grease might accumulate

Question 17

Easy way to remember extinguisher classes

Answer 17

A-shes
B-oil
C-urrent
D-ent
K-fc

Question 18

Easy way to remember colours and shapes of the extinguisher classes

Answer 18

All shaped fit easy in their shape besides d and k

A: A-okay (good) = green
B: Bad = Red
C: Sea = Blue
D: gold star
K: cooking (burnt)= black