NCEES Principles and Practice of Surveying Practice Exam

Which of the following is NOT characteristic of a stable monument in land surveying?

1. It remains unchanged over time

2. It is easily visible

3. It is movable and adjustable

4. It provides a clear reference point

The correct answer is: It is movable and adjustable

A stable monument in land surveying is crucial for ensuring accurate and reliable measurements over time. A monument that remains unchanged over time is essential because consistency in its position is necessary for repeated surveys to maintain comparability and accuracy. A stable monument being easily visible allows surveyors and others to locate it quickly, ensuring that it can be used as a reliable reference point at any time. Additionally, providing a clear reference point is critical; this helps establish proper alignment and orientation during surveying activities. The characteristic of being movable and adjustable contradicts the very concept of stability in a monument. Stability implies that the monument is fixed in place, providing a permanent marker for future reference. If a monument is movable or adjustable, its reliability as a reference point diminishes significantly, making it unsuitable for long-term survey applications. Hence, identifying the characteristic of stability as not being movable or adjustable highlights the foundational principles of monument placement in land surveying.