Which type of hazard occupancy typically has a mix of Class A combustibles and Class B flammables?

The choice of moderate hazard occupancy is appropriate because this classification specifically involves environments where both Class A combustibles, which are materials like wood and paper, and Class B flammables, such as liquids that can ignite, are present. This combination creates a moderate level of risk in the event of a fire because the presence of both types of materials increases the complexity of potential ignition sources and fuels available for a fire.

In contrast, low hazard occupancies typically only involve materials that pose minimal risks, focusing on non-combustible or less combustible materials. High hazard occupancies would have larger quantities of easily ignitable materials or more dangerous substances, leading to a greater risk profile. Severe hazard occupancies represent an even higher risk situation, often involving extremely volatile substances that can lead to catastrophic scenarios.

Understanding these classifications helps in assessing the appropriate safety measures, building codes, and fire protection systems necessary for each type of occupancy, making it vital for those involved in construction and safety management.