Civil Engineering :: Surveying
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In optical reading instruments
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For setting out a simple curve, using two theodolites.
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Geodetic surveying is undertaken
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The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be
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A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at A and B were 1.22 and 1.06. With the level set up a A, the readings at A and B were 1.55 and 1.37. The collimation error per 100 m length of sight is
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Keeping the instrument height as 1 \(\frac { 1 } { 2 }\) m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than
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True meridian of different places
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Let angular value of one graduation of a tube of length x be φ seconds and R be the radius of its internal curved surface, then
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Pick up the correct statement from the following :
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Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB
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