- Traversing Was Carried Out In One Remote Area Observations Data Were Taken From Station P And Q With Three Traverse Leg 1 (56.41 KiB) Viewed 58 times
A gradient of 1 in 400 falling from elevation 67.45 m was set out by driving pegs at 100 m intervals with the top of the pegs on the required gradient. After a time, it was suspected that some of the pegs had been disturbed and the follow INTER STN BACKSIGHT SIGHT FORESIGHT R.L. REMARKS 1 1.76 64.13 B.M 2 2.64 0.72 3 1.96 1.42 4 0.93 peg 1 5 1.2. peg 2 6 7 1.5 1.76 2.03 8 9 2.3 10 0.69 2.59 peg 3 peg 4 peg 5 peg 6 peg 7 peg 8 peg 9 peg 10 11 0.95 1.23 12 13 1.52 14 0.61 1.21 15 1.72 64.13 B.M.
A staff was held vertically at a distance of 100m and 300m from the centre of a theodolite fitted with stadia hairs and the staff intercepts with the telescope horizontal were 0.990 and 3.000 respectively. The instrument was then set over a station A of RL 950.50 m and the height of instrument was 1.42 m. The stadia hair readings of a staff held vertically at station B were 1.00, 1.83 and 2.67 m while the vertical angles was 10° 00'. Find the distance AB and RL of B.