Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, bläi 7 and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the * reduced level of Y is 105.5 m O 104.5 m 105.0 m 104.0 m O

Q#1: A profile levelling is carried out and consecutive readings were observed on staff rod along a chain line at common interval of 10 meter which are listed below in table. First reading is taken on bench mark of 105.615 meter reduce level.   Station Points Chainage (m) Staff Readings (m) Remarks BS IS FS 1 00 3.005     BM 2 10   2.285     3 20   1.560     4 30   1.785     5 40   2.105     6 50 2.875   3.105 CP 1 X 53.35   3.465     7 60   3.955     8 70   3.120     9 80   3.015     10 90   2.580     11 100     1.955 CP 2   Determine the reduce levels of all points using both line of collimation and rise and fall method. (Present your answer in table form).

DIFFERENTIAL LEVELING. Complete the differential level notes shown below and perform the customary arithmetic. STA BS HI FS ELEVATION ВМ10 2.085 137.450 m ТР1 2.015 0.982 ТР2 1.864 1.428 ТРЗ 0.579 1.527 BM11 0.423 2.423 TP4 1.446 1.807 ТР5 1.778 1.725 ТР6 2.051 2.339 TP7 2.920 1.005 ВМ12 3.186 2.358 ТР8 2.805 0.995 ТР9 0.774 1.206 ВМ13 0.603

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