The next thing in surveying is comprises the fieldwork of measuring and the office work like the drawing. Survey are made up of 3 purpose, 1. Establishing the boundaries of land, 2. Providing information necessary to the construction of engineering work, 3. Portraying land and water forms for purpose of navigation, mining, construction, and general use.
Field work consists in adjusting instruments and caring for field equipment.
Then measuring horizontal and vertical distance and angles, and recording the field measurements, usually in the field notebook. The field problems given herein might in practice become parts of extended surveys. A survey consists a lot of office work like correcting the field measurements to meet the codes that are required. Also when doing office work they are responsible to find the plotting of the maps, profiles, and cross-sections and calculating area of land and volumes of the earth that you would be working with. Sources of error is the measurements of surveying, instrumental errors arise from imperfections or faulty adjustment of the devices with which measurements.