What is the role of Class A extinguisher?

Classes of fire

Types of fires

Class “A”

Class A
Fires are that fires which involve ordinary combustible materials such as cloth,
wood, paper, rubber, and many plastics.

Class “B”

Class
B fires are fires that involve flammable and combustible liquids such as
gasoline, alcohol, diesel oil, oil-based paints, lacquers, etc., and
flammable gases. 

Class “C”

Gas and Liquified gas, Fire Involving metals

Class “D”

Fire Involving metals. Class D fires are fires that involve combustible metals such as magnesium,
titanium and sodium. Electrical equipments 

Class “E”

A Class E fire is caused by electricity in electrical equipment, such as phone chargers, PCs, Toasters, Corded kettles, Coffee makers, Microwaves, TVs, Fridges, DVD players, and Gaming consoles.