1.

A line of levels has been run from a bench mark of elevation 23.47 m and ends at another benchmark of elevation 23.50 m. The sum of the Backsights is 16.26 m and that of the Foresights is 16.29 m. The closing error is-0.06

Answer» A line of levels has been run from a bench mark of elevation 23.47 m and ends at another benchmark of elevation 23.50 m. The sum of the Backsights is 16.26 m and that of the Foresights is 16.29 m. The closing error is
  1. -0.06


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