Which of the following best describes an ordinary (moderate) hazard location?

An ordinary (moderate) hazard location is characterized by the presence of both Class A and Class B materials in greater quantities compared to light hazard locations. Class A materials include common combustibles like wood, paper, and fabric, while Class B materials pertain to flammable liquids and gases. In moderate hazard locations, the combination and increased amount of these materials elevate the fire risk, necessitating appropriate fire protection measures.

This classification is essential in fire safety management, as it helps determine the type of fire extinguisher needed and the frequency of fire safety inspections. Understanding this standard helps responders gauge the potential fire load and select the correct suppression methods.

In contrast, the other options either downplay the risk associated with the presence of flammable materials or inaccurately describe the conditions of various hazard locations. For instance, a location risk-free from flammable materials would not be classified as an ordinary hazard, since the very notion of a hazard involves the potential for fire incidents. Thus, option B accurately reflects the conditions necessary for a location to be defined as having ordinary hazard potential.