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Discussion :: Surveying

  1. Which of the following statements is incorrect ?

    2. A.

     Error due to refraction may not be completely eliminated by reciprocal levelling.
    B.

     Tilting levels are commonly used for precision work.
    C.

     The last reading of levelling is always a foresight.
    D.

     All of the above statements are incorrect.

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    Answer : Option D

    Explanation :

    Explanation Not Provided

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