How many classes of fire are there according to fire safety regulations?

The correct answer indicates that there are four classes of fire according to fire safety regulations. These classes are fundamental in understanding how to identify and handle different types of fires effectively.

Class A fires involve ordinary combustibles such as wood, paper, and cloth, which typically require water or certain types of extinguishing agents to put out. Class B fires involve flammable liquids and gases such as oil, gasoline, and paints, and they necessitate a different approach, often requiring foam or dry chemical extinguishers. Class C fires involve electrical equipment and should not be extinguished using water; instead, specialized extinguishers that do not conduct electricity are used. Class D fires occur with combustible metals like sodium or magnesium, which require particular extinguishing methods that prevent reaction with water.

An understanding of these four classes is essential for safety practices and ensuring that appropriate measures are taken in case of a fire incident. This comprehensive classification enables effective training and equips individuals to respond appropriately to various fire emergencies.