California Supplemental (CSE) Practice Exam

Which construction type is characterized by a non-combustible structure that is fire-resistive?

1. Type I

2. Type III

3. Type IV

4. Type V

The correct answer is: Type I

Type I construction is recognized for its non-combustible properties and fire-resistive features, making it a common choice for high-rise buildings and structures requiring significant fire safety. In this construction type, both the structural elements (like columns, beams, and walls) and the floors are constructed using materials that do not ignite or burn under normal conditions, such as concrete and steel. This results in a structure that can withstand fire longer than other types, which is critical for occupant safety and property protection. Type I construction is often regulated by building codes to ensure that these properties are upheld, contributing to lower risks in environments where fire hazards are a concern. The advantage of its fire-resistance means that in the event of a fire, the structure is more likely to remain intact longer, allowing time for evacuation and response from emergency services. In contrast, Types III, IV, and V have varying degrees of combustibility. Type III involves a combination of combustible and non-combustible materials, Type IV is referred to as heavy timber construction which includes large wooden elements, and Type V is entirely wood-framed construction, which is more susceptible to fire. Each of these types lacks the same level of fire-resistance provided by Type I construction. Therefore