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1 vote	1112 views	1 answer	One of the tacheometric constants is additive, the other constant, is updated 9 years ago by Civil Engineer
0 votes	1763 views	0 answers	If θ is the vertical angle of an inclined sight, δ is the angle of tilt of the staff, the error updated 9 years ago by Civil Engineer
1 vote	1062 views	1 answer	Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is updated 9 years ago by Civil Engineer
1 vote	1014 views	1 answer	In chain surveying field work is limited to updated 9 years ago by Civil Engineer
1 vote	2546 views	1 answer	If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, is updated 9 years ago by Civil Engineer
1 vote	1026 views	1 answer	An imaginary line joining the points of equal elevation on the surface of the earth, represents updated 9 years ago by Civil Engineer
1 vote	1124 views	1 answer	Diopter is the power of a lens having a focal length of updated 9 years ago by Civil Engineer
1 vote	1600 views	1 answer	Closed contours of decreasing values towards their centre, represent updated 9 years ago by Civil Engineer
0 votes	1270 views	0 answers	If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is updated 9 years ago by Civil Engineer
0 votes	1081 views	0 answers	If arithmetic sum of latitudes of a closed traverse is ∑Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is updated 9 years ago by Civil Engineer