State any four codes of signals in ranging with their meaning.

State any four codes of signals in ranging with their meaning. 
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1 Answer

Answer :

In guiding the assistant into line, the surveyor should use following code of signals.

Sr. No.
Signal by the Surveyor 
Action by the Assistant 
1 Rapid sweeps i.e. up and down movement with right hand on right side.
Move considerably to the right. 
2 Rapid sweeps i.e. up and down movement with left hand on left side.
Move considerably to the left.
3 Slow sweeps with right hand on right side.
Move slowly to the right.
4 Slow sweeps with left hand on left side.
Move slowly to the left.
5 Right arm extended.
Continue to move to the right. 
6 Left arm extended.
Continue to move to the left. 
7 Right arm up and moved towards right.
Make the rod vertical by moving towards right.
8 Right arm up and moved towards left.
Make the rod vertical by moving towards left.
9 Both hands above the head and brought down.
Correct.
10 Both arms extended forward horizontally and then depressed.
Fix the ranging rod.
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