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Types of survey  We all know what surveying in civil engineering means and in civil engineering survey there are two types Geodetic and plane survey. What is Geodetic survey? The survey in which the shape and curvature of earth is taken into account. Here the true shape of the earth is taken into consideration. This type of surveying is being carried out for highly precise work and is adopted for surveying of large area. It is also called as land survey because curvature of earth is taken into consideration. Since we know that we cannot place two points or draw a straight line on earths surface we use geodetic survey . The term geodetic was taken because earths shape is geoid . A definite limit can not be set for the area upto which a surveying may be treated as plane, as the degree of accuracy required is the main factor we use geodetic survey. What is plane survey? The survey in which the shape of the earth is not taken into account. As we have discussed the geo...

What is survey ? Surveying is a science and art of determining the relative positions of points on, above or beneath the surface of the earth by means of measurement of distance, direction and elevation either directly or indirectly. lt is essential in a process of determining the positions of horizontal and vertical directions in a plane. These the professional survey definition but survey is actually the method or way from which all  planning and design of all civil engineering projects such as construction of highways, bridges, tunnels etc are based on survey measurements . Survey is used to do different civil engineering tasks .Surveying includes levelling, in which it is possible to find the elevations or level or heights of the points with respect to a given or assumed datum. levelling is essentially a process of determining the positions of points In  vertical plane. Without surveying the construction work cannot be carried on , so surveying is the basic require...