Calculate the true difference in elevation between two points A and B by referring to the below mentioned data of reciprocal levelling.
|
Instrument at |
Staff readings |
|
|
A |
B |
|
|
A |
1.250 m |
3.255 m |
|
B |
0.955 m |
2.970 m |
1
2.005 m
2
2.015 m
3
2.010 m
4
2.000 m