Surveying
The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is

5700 nautical miles
5100 nautical miles
500 nautical miles
120 nautical miles

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Surveying
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?

error due to inaccurate graduation
error due to displacement of station signals
error due to eccentricity of verniers
error due to wrong adjustment of line of collimation and trunnion axis

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