The line of collimation and the axis of telescope are
AThe same
BOne
COne and the same
DDifferent
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Related Questions:
The rise and fall method provides complete check on
The branch of surveying in which the horizontal and vertical distances are determined by angular observations with a pacheometer
A fixed reference point of known elevation
The vertical distance between two consecutive contour lines is called :
The rise and fall method of levelling is :