'Terrestrial laser scanning' (TLS) in surveying rapidly generates:
Choose the correct answer
Only 2D floor plan
Dense 3D point cloud of objects and terrain from ground level — used for as-built surveys, heritage documentation, structural monitoring
Only images without distance data
Soil samples
Correct Answer
B. Dense 3D point cloud of objects and terrain from ground level — used for as-built surveys, heritage documentation, structural monitoring
Why is this the answer?
TLS (Ground-based LIDAR): instrument scans 360° horizontally, measures distance + angles to millions of points per second → 3D point cloud. From a single or multiple scan positions, generates: detailed 3D model of building facades, as-built drawings, deformation monitoring of structures, volume calculations of stockpiles. Revolution in as-built surveys.
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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