Setting out of a simple circular curve by 'linear' method (offset from long chord or chord produced) is used when:
Choose the correct answer
A very precise survey is required
A theodolite is not available and a tape/chain method is sufficient for setting out the curve
Curves are very long (> 500 m)
Only for spiral curves
Correct Answer
B. A theodolite is not available and a tape/chain method is sufficient for setting out the curve
Why is this the answer?
Linear methods for setting out curves: offset from long chord (Mx = √(R² − x²) − (R² − L²/4)^0.5); chord produced. Used when theodolite not available or short curves. Rankin''s deflection angle method (theodolite) is more accurate for long curves. Linear methods: surveyor''s tape + pegs; less precise but quick for small radius curves.
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:
Practice more Civil Engineering questions
This MCQ belongs to JE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.