Match the code of signals for direct ranging. List 1 indicates the Signals by the surveyor and List 2 indicates the Action by the assistant in the field:
|
List 1 |
List 2 |
||
|
M. |
Rapid sweep with the left hand |
1. |
Continue to move to the left |
|
N. |
Slow sweep with the left hand |
2. |
Move considerably to the left |
|
O. |
Left arm extended |
3. |
Plumb the rod to the left |
|
P. |
Left arm up and moved to left |
4. |
Move slowly to the left |
|
5. |
Fix the rod in position |
1
M - 2, N - 1, O - 4, P - 5
2
M - 2, N - 1, O - 5, P - 3
3
M - 2, N - 4, O - 1, P - 3
4
M - 2, N - 4, O - 1, P - 5
5
M - 3, N - 4, O - 1, P - 2