Surveying
At the first point of Aeries, the sun moves

Southward
Northward
From north to south of the equator
From south to north of the equator

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Surveying
Accidental errors

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

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Surveying
Which of the following errors can be eliminated by taking mean of bot face observations ?

error due to eccentricity of verniers
error due to imperfect graduations
error due to imperfect adjustment of plate levels
error due to line of collimation not being perpendicular to horizontal axis

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