Most buildings are classified with Class _____ hazards.

Most buildings are classified with Class A hazards due to the presence of ordinary combustibles such as wood, paper, cloth, rubber, and certain types of plastic. Class A hazards represent materials that can ignite easily and sustain combustion, making them a common concern in many environments, particularly in residential and commercial buildings.

Understanding hazard classifications is crucial for determining the appropriate fire safety measures and extinguishing systems required for protection against fire risks. By recognizing that Class A is the most prevalent classification, individuals in the field can ensure that the right types of portable fire extinguishers are in place and routinely maintained to effectively respond to potential fires involving ordinary combustibles.

In contrast, other hazard classes (B, C, and D) represent different types of materials or situations, such as flammable liquids, electrical equipment, and combustible metals, respectively, which are less common in general building environments.