Surveying
The angular distance of a heavenly body from the equator, measured along its meridian, is called

Declination
Zenith distance
Co-latitude
Altitude

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

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