Alabama Contractors License Practice Exam

What is the allowable shear in pounds for a 1 inch bolt embedded 21 inches into adobe masonry?

1. 300

2. 400

3. 500

4. 600

The correct answer is: 400

The allowable shear force for a concrete or masonry connection is often derived from standardized tables based on the type of materials and conditions involved. In this scenario, you are dealing with a 1-inch bolt embedded 21 inches into adobe masonry. The shear capacity of bolts can vary based on several design factors, including the material being used, the size of the bolt, and how deep the bolt is set into the material. For adobe masonry, the depth of embedment plays a critical role, as a deeper embedment generally provides better shear resistance. Furthermore, for a 1-inch bolt, industry standards or empirical data typically indicate a certain shear capacity based on tests or established guidelines. In this case, the appropriate reference for such masonry applications, potentially found in building codes or engineering handbooks, commonly cites an allowable shear load around 400 pounds for a 1-inch bolt in a well-defined application with specific embedment into adobe. Therefore, the selection of 400 pounds aligns with foundational engineering principles and established tables that dictate performance values for different materials and conditions, confirming it as the correct answer for the scenario given.