Construction Supervisor License Practice Exam

Houses two stories and less have anchor bolts installed into grouted cells of concrete masonry units at what depth?

1. 6 inches deep

2. 7 inches deep

3. 8 inches deep

4. 15 inches deep

The correct answer is: 7 inches deep

Anchor bolts play a crucial role in securing the building's frame to its foundation, especially in regions prone to seismic activity or high winds. For houses that are two stories or less, building codes specify that anchor bolts must be embedded a certain depth into the grouted cells of concrete masonry units to ensure structural integrity and stability. The requirement for anchor bolts to be installed at a depth of 7 inches deep in grouted cells of concrete masonry units aligns with standard building practices. This depth is adequate to provide the necessary pullout resistance and shear strength required for the structural demands placed on residential buildings. It helps to maintain a secure connection between the home and its foundation, reducing the risk of failure during extreme weather conditions. In contrast, the other depths stated in the options—6 inches, 8 inches, and 15 inches—do not meet typical code requirements for such structures. While the depth of 6 inches may not offer enough support, and 8 inches, although closer, exceeds the specified depth without providing substantially greater security. The proposed 15 inches would typically be unnecessary for houses of this size, leading to excessive reinforcement without corresponding benefits. Hence, the specification of 7 inches is the optimal and code-compliant choice for these types of structures