Massachusetts Unrestricted Construction Supervisor License Practice Test

What is the correct method for grading the finish grade away from the foundation of a single family dwelling?

1. A 6 inch drop within the first 12 feet

2. A 6 inch drop within the first 10 feet

3. A 7 inch drop within the first 10 feet

4. Both B and C

The correct answer is: Both B and C

The correct method for grading the finish grade away from the foundation of a single-family dwelling requires that the ground slopes adequately to ensure proper drainage and prevent water pooling around the foundation, which could lead to structural issues. Both of the options that indicate a drop of 6 inches within the first 10 feet or a drop of 7 inches within the same distance meet the standard requirements by providing sufficient slope to manage water runoff effectively. A grading slope of 6 inches drop in the first 10 feet is commonly recommended, ensuring that water runs off away from the home. At the same time, the option of a 7-inch drop within the same distance is also acceptable as it provides even more slope, further enhancing water management. Both configurations satisfy the necessary drainage criteria, making them suitable choices for grading methods. This emphasis on adequate grading is crucial in construction practices, as improper drainage can lead to long-term damage to a home’s foundation, including cracking and mold issues.