The imaginary line joining the point of inter section of crosshair at diaphragm and the optical centre of the object glass and its continuation is
AAxis of the level tube
BLine of collimation
CAxis of the telescope
DNone of the above
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Related Questions:
The for bearing of a line is 185 degree, then it's back bearing is:
If the field temperature is lower than that at which the tape was calibrated, it results in:
The difference between for bearing and back bearing of a survey line should be
The true bearing of a line is calculated as:
A clinometer Is used for: