NICET - Highway Construction Inspection Practice Exam

Why are line braces installed on long sections of fence?

1. To enhance aesthetics

2. To retain tension at elevation changes

3. To prevent rusting

4. To keep animals out

The correct answer is: To retain tension at elevation changes

Line braces are essential in the construction of long sections of fencing primarily because they help maintain and retain tension in the fence, particularly when there are elevation changes along the span. When a fence follows the natural contour of the land, the height can vary, which can cause slack in the fencing material. This slack could lead to sagging or even deformation over time, compromising the integrity and the intended function of the fence. By installing line braces, the orientation of the fencing can be reinforced, allowing it to effectively maintain tension despite fluctuations in height. This not only ensures that the fence remains taut and functional but also prevents potential issues such as leaning or collapsing under the weight of its own structure or environmental factors like wind or snow accumulation. Thus, line braces play a crucial role in ensuring the longevity and durability of long sections of fencing, especially in more challenging terrains.