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

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

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Surveying
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated

on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
on its outer spindle with a relative motion between the vernier and graduated scale of lower plate

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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
For mapping any country

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

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