What is the primary function of a hand level in surveying?

The primary function of a hand level in surveying is to check rough grade. A hand level is a simple tool used to determine whether a surface is level or to check the grade of a slope. When using a hand level, a surveyor can hold the device and align it with reference points to visually assess whether the ground is at a consistent height or if it inclines or declines. This visual inspection allows surveyors to make quick evaluations of the terrain without relying on more complex equipment.

While measuring elevation, calculating distances, and establishing benchmarks are all important tasks within the field of surveying, they typically require different tools or methods. For instance, measuring elevation accurately often involves the use of a more precise level instrument or leveling rod, while benchmarks are generally established using survey-grade equipment like total stations. Therefore, the hand level's design and practical usage are specifically suited for checking rough grade conditions rather than serving these alternative functions.