Surveying is the science of determining the dimensions and contour or roughness

Question

Surveying is the science of determining the dimensions and contour or roughness or three dimensional characteristics of the earth's surface by the measurements of distances, directions and elevations. (a) True (b) False (c) Can be true or false Plane surveys are those for which the curvature of the earth's surface is _____ (a) Neglected (b) Taken into consideration (c) Can be neglected under special circumstances. A _____ survey is one in which the relief or three-dimensional variations of the earth's surface are measured. (a) Topographic (b) Plane (c) Geodetic (d) Marine _____ surveys are made to obtain the relative positions of underground shafts, geological formations. (a) Marine (b) Mine (c) Aerial (d) Land An error is any difference between the true value and the measured value. (a) True (b) False

Explanation / Answer

1) True -- Surveying is the science of determining relative positions on the surface of the earth and above the surface.

2) Plane surveys are those surveys where the curvature of Earth is neglected.

3) A topographic survey is the one in which the 3-D variations of the earth surface are measured.

4) Mine surveys are made to obtain information about positions of underground shafts and so on.

5) True , error = True value - measured value

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