Surveying In order to locate the position (P) of a sounding boat, the angles APB & BPC subtended at P by three points A, B and C on the shore were measured with a sextant and found to be 28º 42’ 40” and 30º 28’ 20” respectively, the point B & P being on opposite of AC. The length of AB & BC scaled from a map were 662 m and 4662 m respectively, and the angle ABC was 60º 50’ 40”. Carry out all the necessary calculations to compute the distances PA, PB and PC.

Q: 1. Prepare a set of profile leveling notes for the survey in Figure 1. In addition to computing all…

A: A profile leveling survey figure given belowNeed to findPrepare a set of profile leveling notes for…

Q: When measuring a distance AB, and with respective to facing towards point B when standing at point…

A: Recorded Distance = The first taping pin was placed 1.35 ft to the left of line ABThe second pin was…

Q: A survey was laid out as follows: a. Line AB has a bearing of S14°26'12"E b. At B, point C was…

A:

Q: 7. Compute the AL and the Ad for each leg of the traverse shown below. Show the EL and the Ed as…

A: Asked: To determine the sum of latitudes ∑L and departures ∑D for given traverse.   Given:…

Q: Jr, a civil engineer was to estimate the height of a transmission tower (G). He performed…

A: Given:- The trigonometric leveling survey data of 3 stations E, Y, & A are given The slope…

Q: 6] If the magnetic declination is 5deg 30min W during the time of the survey, what is the true…

A:

Q: The RL of a point is 120 m and elevation of the instrument is 1 m. If a contour line of 119 m is to…

A: Given -  RL of point = 120 m Elevation of the instrument (h) = 1 m Elevation of contour line from…

Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.