1. Given in the accompanying tabulation are the observed data for a closed traverse obtained from a transit-tape survey. Determine: a. Linear Error of Closure b. Relative Precision c. Bearing on the side of error d. Using Compass Rule, determine the adjusted bearing and length e. Using Transit Rule, determine the adjusted bearing and length *Use extra sheet if necessary Bearing Length (m) S 68°05'35"W 472.68 N 19°46'00"W 216.13 N 45°55'20"E 276.52 S 54°59'15'E 382.24 Line AB BC CD DA

1. Given in the accompanying tabulation are the observed data for a closed traverse obtained from a transit-tape survey. Determine: a. Linear Error of Closure b. Relative Precision c. Bearing on the side of error d. Using Compass Rule, determine the adjusted bearing and length e. Using Transit Rule, determine the adjusted bearing and length *Use extra sheet if necessary Bearing Length (m) S 68°05'35"W 472.68 N 19°46'00"W 216.13 N 45°55'20"E 276.52 S 54°59'15'E 382.24 Line AB BC CD DA

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.

Question

1. Given in the accompanying tabulation are the observed data for a closed traverse
obtained from a transit-tape survey. Determine:
a. Linear Error of Closure
b. Relative Precision
c. Bearing on the side of error
d. Using Compass Rule, determine the adjusted bearing and length
e. Using Transit Rule, determine the adjusted bearing and length
Length (m)
Bearing
S 68°05'35"W
472.68
N 19°46'00"W
216.13
N 45°55'20"E
276.52
S 54°59'15'E
382.24
*Use extra sheet if necessary
Line
AB
BC
CD
DA

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e E:EE • Asiacell l. A docs.google.com Lläi 6 To establish a new benchmark on point B using a levelling instrument. The work had been done between B.M1 and B.M2 to the required point B, and the observations were recorded as in the tables below. Calculate the best value .of elevation for point B B.M1 B B.M2 B Point Remarks Remarks BS FS 3.305 Point BS FS B.M1 RL=34.585 B 0.405 T. P1 30.06 0.672 T. P4 4.24 1.795 A 4.01 1.825 T. P5 3.35 3.485 Т. Р2 3.315 2.485 B.M2 2.78 RL=42.093 Т. РЗ 3.315 | 1.235 B 3.715 41.97m O 40.95m 46.97m 39.97m 43.67m 45.98m 44.37m blä 3 * If Ø=0.987643 rad. Find Ø in degrees