A stadia measurement was undertaken with a theodolite having an internal focusi telescopel and stadia interval factor of 98.8. When a backsight was taken on a turnit point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with H horizontal hairs set at 1.50 m on the rod, the vertical angle reading was +13°45'. For foresight to a control point, the rod intercept was 1.17 m; and with the horizontal h reading of 1.60 m on the rod, the vertical angle observed was -7°18'. Determine t elevation of the line of sight at the instrument point and the elevation of the point which the foresight was taken.
A stadia measurement was undertaken with a theodolite having an internal focusi telescopel and stadia interval factor of 98.8. When a backsight was taken on a turnit point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with H horizontal hairs set at 1.50 m on the rod, the vertical angle reading was +13°45'. For foresight to a control point, the rod intercept was 1.17 m; and with the horizontal h reading of 1.60 m on the rod, the vertical angle observed was -7°18'. Determine t elevation of the line of sight at the instrument point and the elevation of the point which the foresight was taken.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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