Fire Department Incident Safety Officer Practice Test

Type III building construction is commonly referred to as what?

1. Heavy timber

2. Ordinary

3. Fire resistive

4. Noncombustible

The correct answer is: Ordinary

Type III building construction is commonly referred to as "Ordinary" construction. This type of construction typically includes a structural frame made of wood or steel, with walls that are primarily of masonry materials. The distinctive characteristic of Type III buildings is that while the exterior walls are noncombustible or of limited combustibility, the interior structure—such as floors and roof—often consists of combustible materials like wood. This classification is significant for fire safety and firefighting operations, as it informs responders about the potential fire load and the materials involved in the structure. Understanding the classification helps in assessing the stability of the building during and after a fire. Type III buildings are often used in urban settings for commercial or residential purposes and require specific safety precautions during firefighting efforts due to the mixed materials used in their construction.