Question
Geomatics Engineering Question on Distance and angle measurement
Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?
A
The line of collimation must be perpendicular to the horizontal axis at its intersection with the vertical axis.
B
The axis of altitude level must be perpendicular to the line of collimation.
C
The axis of plate level must lie in a plane parallel to the vertical axis.
D
The Vernier of vertical circle must read zero when the line of collimation is vertical.
Answer
The line of collimation must be perpendicular to the horizontal axis at its intersection with the vertical axis.
Explanation
Solution
The correct option is (A): The line of collimation must be perpendicular to the horizontal axis at its intersection with the vertical axis.