Surveying
Longitude of a place is the angular distance between the meridian of the place and

Both (A) and (C) of above
The standard meridian
The International Date Line
That of Greenwich

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

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