9. A surveyor sets up a transit at a point Q which is at the middle portion of a four-sided tract of land and reads the bearings and measures the distance, as given below. Line Bearing QA N 41⁰ W QB N 35⁰ E QC S 67⁰ E QD S 56⁰ W What is the area of the land in hectares? Distance (m) 430 535 497 621

Q: Assume a new elevation of 100FT across the entire site. Existing elevations are as written on the…

A: Grid Size: 10'x10'Existing elevation - New elevation = DifferenceGrid 1: 101-100 = 1Grid 2:…

Q: Why is the Resident Project Representative required to submit sketches along with the Report of…

A: - A Resident Project Representative is a person who is assigned to a project to work along with the…

Q: Q2/ For the land shown below, if the length of squares is (30m) and the scale is (1:1000). Find: 1-…

A: Given:  Square Length L=30m scale  1:1000 contour interval=1m find the followings  1 no. of contours…

Q: what are the USCS group name for each of the four gradations

A: Given: Specimen LL PL PI Cc Cu 1 53 24 29     2       1.05 95.52 3 27 16 11 3.06 28.34 4…

Q: Write down the purpose of boring?

A: Boring Boring is the process of drilling of holes in the ground. That can either on the ground or on…

Q: 400 Hole of radius 200 300 --> x' 600 - 750

A: we are authorized to answer up to three subparts in one question request. please repost the…

Q: Given below is the technical description of a residential lot. It is required to subdivide the lot…

A: To Determine. Location of the dividing line from corner 4 along the line 3-4.

Q: ● Add the following angles: 25°54'13" + 100°05'25" 225°54'28" + 67°30'55" • Subtract the following…

A:

Q: 4. Complete the accompanying set of profile notes and perform the arithmetic check. Provide a sketch…

A: The levelling terms and formula. BS = Back sight The first measurement taken in a survey. It is the…

Q: 8. List three methods of sheeting an excavation (Sketch each of them)

A: When the depth of excavation is too much, or when the soil on the sides of excavation is quite…

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.