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The accuracy of measurement in chain surveying does not depend upon:
When 1cm on a map represents 10m on the ground, the representative fraction of the scale is
Surveyor's chain or Gunter's chain is 66foot (20.117 m) chain is divided into 100 links, usually marked off into groups of 10 by brass rings or tags which simplify intermediate measurement. Each link is thus 7.92 inches (20 cm) long.
The following bearing were observed while traversing with a compass, which stations are affected by local attraction ?
A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is
The sum of the interior angles of a closed traverse is equal to :
The instrument used for accurate centering in plane table surveying is :
The correction in elevations due to the curvature and refraction is proportional to :
Where R is the radius of curvature of Earth and D is the horizontal distance.
Intersection method in plane table surveying is N most suitable for :
Mean Sea level (MSL) adopted by survey of India for reference is located at ?
For which of the following permanent adjustments of theodolite, the spire test is used ?
As applied to staff readings, the corrections for curvature and refraction are respectively
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