In chain surveying, a well-conditioned triangle should generally have no angle smaller than:
Correct answer: B. 30 degrees
- A. 15 degrees
- B. 30 degrees
- C. 45 degrees
- D. 60 degrees
Explanation
A well-conditioned triangle has angles that allow accurate plotting and checking, with no angle less than about 30 degrees or greater than about 120 degrees. Very acute triangles amplify small measurement errors.
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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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