Computer · Surveying
Which of the following statements regarding the vertical circle assembly of a transit theodolite is correct?
- 1Both the graduated circle and the vernier scale remain fixed while the telescope rotates independently.
- 2The graduated circle remains fixed, while the vernier scale moves along with the telescope.
- 3The vernier scale remains fixed (attached to the index arm), while the graduated circle rotates with the telescope.✓
- 4Both the graduated circle and the vernier scale move together with the telescope.
Correct answer
The vernier scale remains fixed (attached to the index arm), while the graduated circle rotates with the telescope.
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