Which type of benchmark is established temporarily for use during a particular surveying project?
Correct answer: B. Temporary benchmark
- A. Permanent benchmark
- B. Temporary benchmark
- C. Arbitrary benchmark
- D. Geodetic benchmark
Explanation
A temporary benchmark is fixed at a convenient, stable point for the duration of a survey or construction project. An arbitrary benchmark may have an assumed elevation, while permanent and geodetic benchmarks are established for wider or long-term control.
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About Surveying
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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