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UPSC Civil Service Exam Questions - Engineering

Q1:

The combined correction for curvature and refraction for a distance of 1400 m is

A 0.153 m

B 0.132 m

C 0.094 m

D 0.021 m

ANS:A - 0.153 m

For combined correction;
0.0673 x d^2.
0.0673 x 1.4^2.
0.1319.
Here d is in km.