Humber/Ontario Real Estate Course 4 Exam Practice

What is the purpose of including both cross bridging and solid blocking in a residential structure?

1. Strengthen the beams.

2. Minimize joist twisting.

3. Reduce the size of footings.

4. Avoid the use of cross members between joists.

5. Increase attic space.

6. Ensure wall stability.

The correct answer is: Minimize joist twisting.

The purpose of including both cross bridging and solid blocking in a residential structure is to minimize joist twisting. Joist twisting can weaken the structural integrity of the floor system. Cross bridging and solid blocking help to stabilize the joists, preventing them from twisting and ensuring a more robust and durable construction. This is crucial for maintaining the overall stability and safety of the building. The other options are not correct because: - Strengthen the beams: While cross bridging and solid blocking do provide some reinforcement to the floor system, their primary purpose is to reduce joist twisting. - Reduce the size of footings: This is not the purpose of cross bridging and solid blocking, which are mainly focused on the stability of the floor system. - Avoid the use of cross members between joists: Cross bridging and solid blocking are actually used in conjunction with joists to enhance their performance, not to avoid using other support structures. - Increase attic space: The inclusion of cross bridging and solid blocking does not directly impact the attic space in a residential structure. - Ensure wall stability: While cross bridging and solid blocking do contribute to the overall stability of a structure, their main purpose in this context is to minimize joist twisting in the floor