North Carolina General Contractors Practice Exam

Which factor is crucial in determining the success of slope when calculating land design?

1. The weight of the materials used

2. The rise and run measurements

3. The type of vegetation present

4. The weather conditions during construction

The correct answer is: The rise and run measurements

The rise and run measurements are essential in determining the success of slope in land design because they provide the necessary dimensions to calculate the slope's steepness and overall angle. The rise refers to the vertical change, while the run refers to the horizontal distance over which that change occurs. By understanding these measurements, engineers and designers can create effective drainage systems, prevent erosion, and ensure stability in constructions. A properly calculated slope aids in directing water away from structures, which is critical in land design. Other factors such as the weight of materials, type of vegetation, and weather conditions can influence certain aspects of land design and construction but do not directly impact the geometric aspects of slope measurement and calculation. The rise and run are fundamental to designing an effective slope and understanding how it interacts with various elements of the landscape.