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Home| Questions|Q 49040
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Vipin Chauhan
Vipin ChauhanProfessional
Asked: December 25, 20212021-12-25T20:02:56+05:30 2021-12-25T20:02:56+05:30In: Surveying

What is back sight in surveying?

Any one can please explain what is back sight in surveying?

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      Abhinav Sharma Beginner
      2021-12-28T19:22:01+05:30Added an answer on December 28, 2021 at 7:22 pm

      The leveling staff held at a point of known elevation and the staff reading taken on a point of known elevation, is called back sight. Back sight is the first staff reading after the staff instrument is set up, It is also known as +ve sight.

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    2. Vipin Chauhan Professional
      2022-12-01T21:01:58+05:30Added an answer on December 1, 2022 at 9:01 pm

      Back sight in surveying is the process of measuring the elevation of a point from a known reference point. This reference point is typically a bench mark, which is a surveyed point already known to have a certain elevation.

      The measured elevation of the point is referred to as the back sight elevation and can be used to calculate the elevation of the other points.

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