The following observations were taken during reciprocal levelling to find the difference in elevation between two points P and Q, located on either banks of a wide river. If the reduced level of the point P is +60 m, determine the reduced level of the point Q?
|
Instrument at: |
Staff reading at P |
Staff reading at Q |
|
P |
1.36 m |
1.96 m |
|
Q |
1.52 m |
2.02 m |
1
+59.4 m
2
+60.5 m
3
+59.45 m
4
+60.55 m