Introduction water, dry powder extinguisher

Fire extinguishers are categorized by the class of fire that they will extinguish, and by the substances they contain.
They are labeled with capital letters according to the class of fire.
Extinguishers may be rated for only one class, or for multiple classes.
Let’s have a closer look at the various extinguishers.
Water extinguisher:
A water extinguisher cools and dampens the fire.
Water removes the heat element from the fire triangle.
Use the water extinguisher when you have a class “A” fire.
Never use water on a class “B”, “C”, “D”, “F” or “E” fire .
Dry powder extinguisher:
A dry powder extinguisher puts the fire out by separating the burning substance from the oxygen, and also interrupts the fire’s chemical reaction.
Use this extinguisher for class “A”, “B”, “C” and “E” fires.
Check the labeling on dry powder extinguishers. Some may only be good for classes “B” and “C”.