Chapter 7: Portable Fire Extinguishers

Question 1

Air-Aspirating Foam Nozzle

Answer 1

Foam nozzle especially 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

Corrosive

Answer 2

Capable of causing corrosion by gradually eroding, rusting, or destroying a material.

Question 3

Deionized Water

Answer 3

Water from which ionic salts, minerals, and impurities have been removed by ion-exchange.

Question 4

Dry Chemical

Answer 4

Extinguishing system that uses dry chemical as the primary extinguishing agent; often used to protect areas containing volatile flammable liquids.

Question 5

Dry Powder

Answer 5

Extinguishing agent suitable for use on combustible metal fires.

Question 6

Extinguishing Agent

Answer 6

Any substances used for the purpose of controlling or extinguishing a fire.

Question 7

Fire Extinguisher

Answer 7

Portable fire fighting device designed to combat incipient fires.

Question 8

Halogenated Extinguishing Agents

Answer 8

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. Also known as Halogenated Hydrocarbons.

Question 9

Saponification

Answer 9

A 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 10

Water-Mist

Answer 10

In the fire service, water mist is associated with a fire extinguisher capable of atomizing water through a special applicator. Water-mist fire extinguishers use distilled water, while backpack pump-type water-mist extinguishers use ordinary water.

Question 11

Wet Chemical System

Answer 11

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