3. In a compass survey made fifty(50) years ago, the observed magnetic bearing of a reference line XY was 50° 18' E when the magnetic declination was 8° 15' east. In 1986, a new survey was made and the declination of the same survey site changed to 12° 10' west. Determine the following descriptions of line XY:

3. In a compass survey made fifty(50) years ago, the observed magnetic bearing of a reference line XY was 50° 18' E when the magnetic declination was 8° 15' east. In 1986, a new survey was made and the declination of the same survey site changed to 12° 10' west. Determine the following descriptions of line XY:

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Fundamentals of Surveying All azimuths are measured from South. All angles must be written to the nearest minute only. All latitudes and departures must be written to two decimal places only. A series of perpendicular offsets were taken from a theodolite line to an irregularboundary. These offsets were at 3.20 m apart and were measured in the following order:1.5 2.5, 4.1, 4.3, 3.7, 2.8, 4.2, 5.3, and 1.4, meters.a) Determine the area using trapezoidal rule.b) Determine the area by Simpson’s one-third rule
Magnetic Declination: 1. In a compass survey made twenty years ago the observed magnetic bearing of a reference line XY was N 42'21' E when the magnetic declination was 6'25' East. Lately in 2018, a new survey was made and the declination in the same survey site changed to 10°35' West. Determine the following descriptions of line XY: a.) Its true bearing twenty years ago; b.) The true azimuth from North and South; c.) Its new magnetic bearing; and d.) The magnetic azimuth from North and South in 2018.
The interior angles of a hexagon were observed and recorded as follows: A = 122°31'02", B = 123 26'17", C = 130°05'07", D = 120°15'47", E = 160°50'35" and F = 62°53'07". What is the sum of the most probable values of angles A, B, and C?
Example To find difference in elevations between two points P and g situated on the opposite banks of river, reciprocal levelling was done and the following readings were noted. Instrument Station P Staff reading Q Remarks P 1.824 2.748 Q 0.928 1.606 R.L. of P = 120.25 m Find R.L. of Q. Also find the combined correction for curvature, refraction and collimation adjustment. distance between P and Q = 1010 m
The Magnetic Bearing (MB) of a line was determined to be S 18°-47¹-42" W. The declination at the time the bearing was observed = 05°-49'-48" West. What is the True (geodetic) Bearing (TB) of this line? S 12°-57¹-54" W S 14°-59¹-06" W S 24°-37¹-30" W S 06°-42'-22" W
5. Four interior angles of a five-sided polygon traverse were observed as A = 100°32'46", B = 112°36'48", and C = 108°13'08", and D = 115°42'58". The angle E was not observed. If all the observations are assumed to be correct, what is the value of the angle E? Worlk
Complete solution Topic: : MAGNETIC DECLINATION
Compute the azimuths in the traverse (as shown in the figure), given that azimuth AB equals 126°55’17”, and that the angles within the traverse are the following: Angle A = 100˚45’35” Angle B = 231˚23’41” Angle C = 17˚12’56” Angle D = 89˚03’26” Angle E = 101˚34’22” Convert the given azimuths computed into bearings.
The magnetic azimuth reckoned from the north of a line is 205° 40'. If the magnetic declination is 3° 15' east, the true bearing of the line is? Answer format (N 36 degrees 25 min E) 1
From the given field notes of a topographic survey using stadia and a theodolite (K = 100, C=0). Find the distance CD. STA. STADIA READINGS VERT. ANGLES ELEVATION LOWER MIDDLE UPPER 7.49 +4°29 CD 4.8 6.15 120.62m DE 3.4 4.80 6.2 +6°30' 131.48m