Surveying — Flashcards

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Surveying is the art of determining positions of objects on the ground by linear and angular measurements and presenting them on a flat sheet of paper on a selected scale. It helps in making maps and …

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Surveying helps prepare maps of small and large areas. It is useful for roads, railways, buildings, multipurpose projects, town development, forest boundaries, and agricultural land boundaries. It mak…

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Survey can be classified on the basis of accuracy, purpose, and instruments used. These three bases help group surveys according to their aim and method.

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Triangulation is a very accurate survey in which the area to be surveyed is divided into small triangles. Each triangle is measured by a suitable instrument such as chain and tape.

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Traversing is a quick but less accurate method of survey. It is used for preparing ordinary maps.

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The types are topographical surveying, cadastral surveying, geological surveying, and military surveying. These are grouped according to the purpose of the survey.

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The types are chain and tape surveying, plane table surveying, and prismatic compass surveying. Among these, plane table surveying is discussed in detail in the chapter.

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The greatest advantage is that field work and plotting are done simultaneously in the field itself. Because of this, no field book is required and time spent in plotting is saved.