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Which of the following axis is perpendicular to the bubble tube axis?
Line of collimation
Vertical axis
Axis of telescope
All of the above
Vertical axis
Practice and solve "Which of the following axis is perpendicular to the bubble tube axis?..." for Civil - Surveying · The correct answer is Option B: Vertical axis · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Option **(b) **