SSC JE Civil Engineering 2018 Set 3 Solved Paper

Question : 129 of 200

Marks: +1, -0

Calculate the curvature correction (in m) if distance between the instrument and staff is 500 m.

Solution:

Curvature correction

C_c = –0.07899 d^{2}.

d = distance on horizontal plane in km = 0.5 km

C_c = -0.07899 × 0.5 × 0.5

[C_c= -0.0196 \m]

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