The 'traversing by radiation' (polar method) plots detail points by:
Choose the correct answer
Measuring angles only along a chain
Measuring angle and distance from traverse station to each detail point — polar coordinates converted to rectangular for plotting
Only for levelling between stations
Connecting two benchmarks
Correct Answer
B. Measuring angle and distance from traverse station to each detail point — polar coordinates converted to rectangular for plotting
Why is this the answer?
Radiation: from one traverse station, angles and distances to all nearby detail points measured. Polar coordinates (distance + bearing/angle) → convert to rectangular (ΔN, ΔE). Advantage: can plot any number of detail points quickly. Suitable for: open terrain. Limitation: error in station position propagates to all detail. Used with total station (tachymetry) for rapid detail survey.
Related Surveying MCQs
More solved Surveying questions for AE/JE Civil Engineering exams.
- A 'Digital Elevation Model' (DEM) is used in GIS for:
- 'Contour interval' selection for a topographic survey depends on:
- The 'photogrammetric control' (ground control points) in aerial survey are required for:
- The 'EDM' (Electronic Distance Measurement) instrument measures distances using:
- The 'photogrammetric stereomodel' from two overlapping aerial photos allows...
- The 'corrections' applied to measured chain/tape lengths include all EXCEPT:
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