Draw contours for the following data using the grid method. The following data of a piece of land showing spot heights at regular grid intervals was recorded. A1, A2 …… A5 – 843.92, 847.60, 848.44, 847.60, & 849.20 B1, B2 …… B5 – 848.03, 852.01, 854.33, 855.64, & 854.63 C1, C2 …… C5 – 848.51, 854.32, 856.72, 858.03, & 859.34 D1, D2 …… D5 – 849.44, 853.23, 854.51, 855.24, & 862.21 E1, E2 …… E5 – 842.23, 839.30, 838.32, 849.51, & 862.83   Construct a grid of your own meaningful size and draw contours for the following sizes.         i.            852       ii.             858 III 848

pls sketch/draw

Quekn For the following triangulation network, find the coordinates of all points. If the coordinates of point A is (657006.462, 972405.615)m. 44 S 428 1S 35 12" 22 46'25" 38 45 31 45 9'55 44 21 6" 86*49'22" 60 48'45" 43 3'37" S0*3'24" 35'2232" 447.51m 52 22'48 43'5713 to 52 721

1) (a)Draw a sketch of the following figure and determine, by the cross-coordinate method, the area of the figure which is defined by the following coordinates: Station Eastings Northings A 613.26 418.11 В 806.71 523.16 C 942.17 366.84 901.89 203.18 E 652.08 259.26 (b) You are asked to produce contours for a topographic map of an area where you wish to design and build an offi building. Describe two methods and the process you can use to obtain the spot heights to produce the contours using field survey methods. Indicate what factors would determine which of the methods is chosen for a given situation. Also indicate how you would improve the accuracy of the contour lines by adjusting the specifications for your observations.

Complete the missing data. Plot the traverse using an appropriate scale. LINE DISTANCE (meter) BEARING S 48.93° E N 53.32° E S 50.71º E 1-2 417.5212 2-3 478.4839 3-4 492.1338 4-5 S 74.490 W N 42.20° W N 42.54° E 5-6 344.7871 6-7 827.8079 7-1 608.6509

Are the answers in #1 to #8 is correct? What are the correct answers?

4

Interpolating Contours The accompanying tabulation gives elevations of points over the area of a 30m by 40m city lot. The elevations were obtained by the Checkerboard Method using 10-m squares. Point A- 1 is located at the northwest corner of the lot and point E-4 at the southeast corner. All elevations are in meters. Point 1 2 3 4 A 878.8 882.5 883.5 883.6 883.2 885.9 893.7 887.2 882.8 888.6 891.8 889.3 D 882.5 890.4 892.6 889.5 883.2 888.5 892.8 893.5 Requirements: a) Plot the contours using a horizontal scale of 6cm=10m and a contour interval of 1 meter. b) Arrange the plotting paper so that the longer side is vertical (use short bond paper, 8 ½" by 11" size). c) All corner designations and corresponding elevations must be indicated, including all vertical and horizontal lines. d) Show the direction of north and indicate the scale used. e) Indicate the elevations of the following index contours: 880, 885, 890, and 895 m. The thickness of the index contours must be drawn about twice…

Traverse adjustment and area computation

fundamentals of surveying.  AREA BY DPD. In the accompanying tabulations are the adjusted latitudes and adjusted departures of two traverses. By employing the double parallel distance method, determine the area (in sq. m. and ha.) of each traverse.