QUESTION $4$

The coordinates and elevation of a newly built beacon P$1$ has to be surveyed near a new

construction site. To fix the height of the new beacon the surveyor did a forward and

return run from the mine benchmark with a precise level. The coordinates were fixed by

observations to three trigonometric beacons.

Available Information:

WG $27$

Observations:

Levelling Fieldbook

Direction Sheet

Station: Beacon P$1$

Calculate:

$4\mathrm{.}1$ The final corrected elevation of beacon P$1.$ If the limits of error for precise levelling

is calculated by $0\mathrm{.}005\sqrt[\phantom{2}]{?}km.$ Was his levelling within the required limits$?$