Civil Engineering - Surveying - Discussion

10. 

Pick up the correct statement from the following :

[A]. the tangent screw enables to give small movement under conditions of smooth and positive control
[B]. standing on the tripod is the levelling head or trib arch
[C]. the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical
[D]. all the above.

Answer: Option D

Explanation:

No answer description available for this question.

Duraisamy said: (Jun 13, 2017)  
An electronic instrument also stability used the tangent screw.

Rohit Chauhan said: (May 3, 2018)  
Option B seems wrong.

How it is all of the above?

Ayan said: (Aug 16, 2018)  
The theodolite is supported on the tripod stand with the help of levelling head. It consists of tribach, levelling screw, trivet.

Jeevan said: (Aug 21, 2021)  
Standing on the tripod is trib arch or trivet?

Please tell me.

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