Topographic surveying tasks: 1.Leveling: Brief: On the 13 th of October 2011, fieldwork was done in the Topographic surveying class. The Instructor took the group to the BTI opened area and there we took a straight line and did the survey for that line.Aim of the exercise: The aim of using the survey technology is to determine the relative heights of different points in the straight line area. In this exercise we used the rise and fall method, Also, height of collimation method to determine the reduced level. Equipment used: 1-Tripod: Three leg points stand, one leg point placed on the ground and the other two are pulled towards the user and opened out. 2- The leveling instrument: A level consists of a high-powere d telescope. The level is attached to a spirit or bubble level that keeps the line of sight ofthe telescope horizontal. 3- Staff: A level staff, also called levelin g rod, is a graduated wooden or aluminum rod, the use of which permits the determination of differences in elevation. 5- Surveying book:It is the book used to record the reading points of the stations. Also, the calculations are done in it.
![Surveying Lab Manual[1]](https://img.pdfslide.us/doc/110x75/548029a2b479593c578b462a/surveying-lab-manual1.jpg)
