Surveying
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

Measuring angles to the point from at least two stations
Measuring angle and distance from one transit station
Measuring distance from two points on traverse line
Measuring angle at one station and distance from other

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Surveying
Refraction correction

completely eliminates curvature correction
partially eliminates curvature correction
has no effect on curvature correction
adds to the curvature correction

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Surveying
For mapping any country

All listed here
Primary triangles are broken down into secondary triangles of somewhat lesser accuracy
Geodetic triangulation of greatest possible sides and accuracy is carried out
Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys

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