Quiz- 1

Surveying is defined as determining the relative positions of points on above or beneath the surface of the earth by means of direct or indirect measurements of distance and direction and elevation.

Finding the elevations of a point with respect to a given or assumed and establish points given elevation or at different elevations with respect to given or assumed dactum is levelling.

Type of surveying in which the mean surface of the earth is considered as a plane and the spheroidal shape is neglected is plane surveying.

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City surveying is made in connection with the construction of streets, water supply systems and sewers. A survey which deals with bodies of water for purpose of navigation, water supply, harbor works or for the determination of mean sea level is hydrographic surveying.

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For exploring mineral wealth mine surveying is used. Determining points of strategic importance is military surveying.

Survey which deals with bodies of water for purpose of navigation, water supply, harbor works or for the determination of mean sea level is hydrographic surveying.