Mine Surveying
The general and basic principles of underground surveys meant for mines and tunnel setting out are almost the same as for surface except for the fact that the conditions under …
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Hydrographic Surveying
Hydrographic survey is that branch of surveying which deals with the measurement of bodies of water. It is the art of delineating the submarine levels, contours and features of seas, …
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Uses of Contour Maps
A contour line is a imaginary line which connects points of equal elevation. Such lines are drawn on the plan of an area after establishing reduced levels of several points …
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Uses and Characteristics of Conventional Surveying
Uses of Conventional Surveying Chain Surveying: Used for taking linear measurements in the field. One-dimensional measurements. Compass: Used for measuring directions of survey lines. Theodolite: Used for measuring angles of …
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What is EDM in Surveying
E.D.M is the electronic distance measuring device, measures the distance from the instrument to its target. The EDM sends out an laser or infrared beam which is reflected back to …
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Difference between Contour Interval and Horizontal Equivalent
The vertical distance or the difference in the elevation between the two contour lines in a topographical map. Three main differences between contour interval and horizontal equivalent as follows: Contour …
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Fundamental Techniques Used for Surveying
Fundamental Techniques Used for Surveying are Triangulation: In this technique numerous triangles are inter-connected and overlapped to measure angles from a surveying station. Trilateration: It follows the same technique as …
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Difference Between Whole Circle Bearing and Quadrantal Bearing
Whole Circle Bearing and Quadrantal Bearing (Reduced Bearing) are two different types of bearing measurement used in surveying. The difference between these types are mentioned below. Whole Circle Bearing The …
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