Discussion :: Surveying
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While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates
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A.
the rotation axis is vertical |
|
B.
the trummion axis is horizontal |
|
C.
the line of collimation is perpendicular to vertical axis |
|
D.
none of the above |
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Answer : Option A
Explanation :
No answer description available for this question.
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