Civil Engineering - Surveying - Discussion

37. 

Pick up the correct statement from the following :

[A]. it is difficult to eliminate an error completely at first trial
[B]. instability of the instrument makes it almost impossible to adjust it satisfactorily
[C]. adjustment screws must be left bearing firmly but should never be forced
[D]. all the above.

Answer: Option D

Explanation:

No answer description available for this question.

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