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1 vote	1234 views	1 answer	The distances AC and BC are measured from two fixed points A and B whose distance AB is known. The point C is plotted by intersection. This method is generally adopted in updated 9 years ago by Civil Engineer
1 vote	1137 views	1 answer	In horizontal angles, the error due to imperfect levelling of the plate bubble is updated 9 years ago by Civil Engineer
1 vote	1539 views	2 answers	The slope correction for a 3° slope for a length of 100 m, is updated 9 years ago by Civil Engineer
1 vote	1145 views	1 answer	The curvature of the earth's surface, is taken into account only if the extent of survey is more than updated 9 years ago by Civil Engineer
1 vote	1317 views	1 answer	The area of any irregular figure of the plotted map is measured with updated 9 years ago by Civil Engineer
1 vote	1108 views	2 answers	The angle of intersection of a contour and a ridge line, is updated 9 years ago by Civil Engineer
1 vote	1151 views	1 answer	The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly updated 9 years ago by Civil Engineer
1 vote	1155 views	1 answer	If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on updated 9 years ago by Civil Engineer
1 vote	1261 views	1 answer	While surveying a plot of land by plane tabling, the field observations updated 9 years ago by Civil Engineer
1 vote	1150 views	1 answer	Diaphragm of a surveying telescope is held inside updated 9 years ago by Civil Engineer