North Carolina Building Contractor License Practice Exam

Which of the following is not a method to dewater a trench?

1. Sump

2. New laid pipe to channel water

3. WellPoint

4. Air drying

The correct answer is: Air drying

Dewatering a trench is an essential procedure in construction to remove water that has accumulated in excavation sites. Various methods exist to achieve this, including the use of sumps, specialized drainage systems like WellPoints, and strategically laid pipes. Air drying is not an appropriate method for dewatering trenches. It fails to address the immediate need to handle water accumulation in environments where construction activities are underway. While air drying can sometimes assist in drying out materials or surfaces that are already in place, it will not effectively remove water that has pooled in an excavated area. In contrast, the other options are structured methods designed specifically for removing water from trenches, using mechanical means or drainage systems. This ensures that the worksite remains dry and safe for construction activities.