Humber/Ontario Real Estate Course 2 Exam Practice

How does including cross bridging and solid blocking help in residential construction?

1. Increases ceiling height

2. Minimizes joist twisting

3. Avoids additional footings

4. Strengthens the beams

5. Reduces the need for cross members

6. Decreases load capacities

The correct answer is: Minimizes joist twisting

Including cross bridging and solid blocking helps in residential construction by minimizing joist twisting. Joist twisting can weaken the structural integrity of the building over time, leading to potential issues with the stability of the floors. By adding cross bridging and solid blocking, it helps to prevent the joists from twisting, ensuring that the floors remain sturdy and safe. This technique to prevent twisting is crucial in maintaining the overall strength and stability of the flooring system in residential construction. Other options are incorrect because: - Increasing ceiling height (Option A) would require different construction techniques such as higher ceilings or roof design, unrelated to cross bridging and solid blocking. - Avoiding additional footings (Option C) is not related to the function of cross bridging and solid blocking, as footings are typically used for foundation support. - Strengthening the beams (Option D) would involve different methods such as adding additional support or using stronger materials, rather than focusing on joist twisting prevention. - Reducing the need for cross members (Option E) is not a direct result of using cross bridging and solid blocking, as these components serve different purposes. - Decreasing load capacities (Option F) is not a desired outcome in residential construction; cross bridging and solid blocking aim to enhance structural integrity and support load-bearing components rather than decrease load capacities.