Following observations were taken for determining the R.L. of station A. Instrument -station Height of Staff instrument station Vertical angle Staff readings Remark Q 1.600 m B.M. Q 1.600 m P +6°12' -4°12' 0.945, 1.675, 2.405 R.L. of B.M. = 421.625 1.450, 2.380, 3.310 A 1.650 m P +7°0' 'X', 0.655, 1.255 Reading 'X' could not be observed The instrument was fitted with an anallactic lens, and the value of constant was 100.00. Calculate the R.L. of station A.

Complete the fieldwork report for this data: STA BS HI FS IFS ELEV Remarks BM-A 0.95 101.345 m 0+000 3.04 +010 2.31 ТР-1 3.15 0.68 0+020 2.72 +030 2.85 +34.2 3.11 +39.3 0.56 +040 0.88 ТР-2 2.16 1.28 +045 0.94 +050 1.28 +060 1.70 +070 2.81 ТР-3 0.82 2.37 ТР-4 1.35 3.50 +075 3.00 BM-B 1.99

Construction Surveying

Reciprocal leveling gives the following readings in meters from a set up near A: on A, 1.110; on B, 0.887, 0.995, and 0.884. At the setup near B: on B, 1.549; on A, 1.673, 1.670, and 1.666. The elevation of A is 1045.343 m. Determine the misclosure of B. Express your answer to three decimal places and include appropriate units. Misclosure = Submit Part B elevB = μÁ Value Request Answer CHA Value Units Determine the elevation of B. Express your answer to three decimal places and include appropriate units. Units ? ?