40 Hour Property and Building Inspection Practice Test

What is the primary function of joists in a building?

1. Transfer live loads to beams

2. Provide roof support

3. Insulate against heat

4. Support ceiling fixtures

The correct answer is: Transfer live loads to beams

The primary function of joists in a building is to transfer live loads to beams. Joists are horizontal structural components that span open spaces and are designed to support loads such as people, furniture, and other live loads within the structure. They distribute these loads effectively to the beams, which then transfer the weight to the foundation of the building. This load-bearing capacity is crucial for the structural integrity and stability of a building, ensuring it can withstand various forces. While joists do contribute to overall structural support, they specifically play a critical role in managing live loads. They are not primarily designed for roof support, insulation, or directly supporting ceiling fixtures, although they may be involved in those functions indirectly. In essence, the effectiveness of joists in load transfer is fundamental to the safety and durability of any building, making their primary function a key aspect of architectural design and construction.