The deflection angle for a full station for a 1° curve is _____.

To determine the deflection angle for a full station on a circular curve, we typically use the formula that relates the deflection angle to the curve's degree. The deflection angle is calculated as the angle that a vehicle or survey instrument would need to turn at the point where the curve begins, effectively helping establish the alignment of the track or road.

For a curve of 1°, the deflection angle at a full station is calculated as half of the degree of the curve. Therefore, the deflection angle becomes 0°30'. This means that for each degree of curve, the change in direction required for the instrument or vehicle is directly proportionate, leading to a clear correlation between the curve's degree and the angle.

In this case, since we have a 1° curve, taking half of this gives us the deflection of 0°30', which is critical for surveying as it aids in accurately setting up alignments for roads or other infrastructure.