A survey line is 100 m long and has a bearing of N30°E. What are its approximate latitude and departure?
Correct answer: B. 86.6 m north and 50.0 m east
- A. 50.0 m north and 86.6 m east
- B. 86.6 m north and 50.0 m east
- C. 86.6 m south and 50.0 m east
- D. 50.0 m south and 86.6 m west
Explanation
For a bearing measured from north, latitude equals L cos 30 degrees and departure equals L sin 30 degrees. Therefore, the line has about 86.6 m northing and 50.0 m easting.
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Surveying covers measurement of distances, angles and elevations, traversing, levelling, contouring, plane table work, theodolites, total stations and basic photogrammetry. It includes error adjustment, coordinate calculations, area and volume determination, and the distinction between accuracy and precision, as well as between temporary and permanent adjustments.
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