Surveying - Engineering
Q1: Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are knownA
plane surveys
B
geodetic surveys
C
geographical surveys
D
topographical surveys.
ANS:B - geodetic surveys A geodetic survey determines the precise position of permanent points on the earth's surface, taking into account the shape, size, and curvature of the earth. The geodetic survey extends over a large area is more than 250km^2. |
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