Surveying
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is

60°
50°
80°
70°

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Surveying
Transit rule of adjusting the consecutive coordinates of a traverse is used where

linear measurements are more accurate than angular measurements
All of these
angular measurements are more accurate than linear measurements
linear and angular measurements of the traverse are of equal accuracy

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Surveying
Accidental errors

Are generally small
Cannot be removed by applying corrections to the observed values
Do not follow any definite mathematical law
All of these

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