In levelling, error due to earth’s curvature is to be corrected using:(a) Cc=0.0673D^2(b) Cc=0.0112D^2(c) Cc=0.0136D^2(d) Cc=0.0785D^2I got this question in examination.I'm obligated to ask this question of Methods of Levelling topic in section Basic Surveying of Basic Civil Engineering

In levelling, error due to earth’s curvature is to be corrected usin

1.	In levelling, error due to earth’s curvature is to be corrected using:(a) Cc=0.0673D^2(b) Cc=0.0112D^2(c) Cc=0.0136D^2(d) Cc=0.0785D^2I got this question in examination.I'm obligated to ask this question of Methods of Levelling topic in section Basic Surveying of Basic Civil Engineering
Answer» The correct OPTION is (d) Cc=0.0785D^2 Explanation: Correction for earth’s curvature and REFRACTION is to be applied. Cc is given by 0.0785D^2. COMBINED correction Cc – CR is given by 0.0673D^2.

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In levelling, error due to earth’s curvature is to be corrected using:(a) Cc=0.0673D^2(b) Cc=0.0112D^2(c) Cc=0.0136D^2(d) Cc=0.0785D^2I got this question in examination.I'm obligated to ask this question of Methods of Levelling topic in section Basic Surveying of Basic Civil Engineering

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