While using a theodolite, how to change the reading on the horizontal circle while measuring an horizontal angle?

Question

TuteeHUB · Accepted Answer

both, upper and lower clamp are loosened.

TuteeHUB · Answer

upper clamp is loosened and lower clamp is tightened.

TuteeHUB · Answer

both, upper and lower clamp are tightened.

TuteeHUB · Answer

upper clamp is tightened and lower clamp is loosened.

1.	While using a theodolite, how to change the reading on the horizontal circle while measuring an horizontal angle?
A.	upper clamp is loosened and lower clamp is tightened.
B.	both, upper and lower clamp are loosened.
C.	both, upper and lower clamp are tightened.
D.	upper clamp is tightened and lower clamp is loosened.
Answer» B. both, upper and lower clamp are loosened.

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