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Tacheometer has ______ number of horizontal hairs.

Tacheometer has ______ number of horizontal hairs. Correct Answer 3

A tacheometer is similar to an ordinary transit theodolite, generally a vernier theodolite itself, fitted with two stadia wires in addition to the central cross-hair. The stadia diaphragm has three horizontal hairs viz., a central horizontal hair and upper and lower stadia hairs.

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