In leveling, a point where the backsight on a leveling rod is taken from one instrument station to the next is called what?

In leveling, the term associated with the point where the backsight on a leveling rod is taken from one instrument station to the next is known as a "turning point." This concept is essential in leveling procedures, as it allows for the transfer of elevation data from one point to another by using a leveling instrument.

The turning point is a temporary benchmark or point on which the leveling rod is set for taking readings after the instrument has been relocated. This procedure ensures that the heights measured and recorded maintain continuity and accuracy throughout the leveling process. It involves taking a backsight reading to establish a reference height and then a foresight to determine the new elevation at the next station.

Understanding the role of the turning point is crucial for effective leveling, as it directly affects the precision of the overall measurement and the establishment of the necessary benchmarks along the planned route or area being surveyed. Other terms such as tribrach, tripod, and revolving pertain to different aspects of the leveling setup or the instrument itself but do not specifically describe the point used for backsights during the leveling process.