North Carolina General Contractors Practice Exam

What is the primary purpose of a well point system?

1. To enhance drainage in wet areas

2. To raise the water table

3. To lower the groundwater table in flood-prone areas

4. To create a water storage facility

The correct answer is: To lower the groundwater table in flood-prone areas

A well point system is primarily designed to lower the groundwater table, particularly in flood-prone areas. This system consists of a series of small-diameter wells, known as well points, installed in the ground to remove excess water from the soil. By pumping water from these well points, it effectively reduces the level of groundwater, which can prevent flooding and facilitate construction activities in areas susceptible to water accumulation. The significance of lowering the groundwater table cannot be overstated, especially in situations where heavy rains or high water tables pose risks to structures and construction sites. This approach provides a means to manage and control subsurface water, thereby allowing for safer and more efficient work conditions. In contrast, other options do not align with the specific objectives of a well point system. Enhancing drainage in wet areas or raising the water table would not address the primary function of controlling excessive moisture, and creating a water storage facility is unrelated to the purpose of a well point system, which is focused more on dewatering than on storing water.