Sri Lanka Licensed Surveyor Exam study materials
Sri Lanka Licensed Surveyor Exam study resources

Sri Lanka Licensed Surveyor Exam study plan

Sri Lanka Licensed Surveyor Exam · Give each week a clear focus.

8 weeks · About 8 hours per week

Week 1

Cadastral Surveying and Land Parcel Definition

  • Map the end-to-end cadastral workflow in Sri Lanka from client instruction through field survey, plan preparation, Survey Department examination and approval, naming the document produced and the responsible officer at each hand-off.

  • Build a boundary-classification table covering fixed (surveyed and monumented), general (unsurveyed/deed) and natural boundaries such as riparian and coastal limits, and state what evidence governs the location of each.

  • Compute parcel areas from a supplied six-station closed traverse, calculate the angular and linear misclosure, and compare the result against an accepted rural/urban tolerance.

  • Assemble a pre-submission checklist of everything a licensed surveyor must verify and certify on a survey plan before it leaves the office.

Your checkpoint

A four-page cadastral procedure pack: one process map, one boundary-type evidence table, and one fully worked parcel area computation with closure check and pass/fail verdict against a stated tolerance.

Week 2

Cadastral Surveying and Land Parcel Definition & Geodesy, Geodetic Datums and Coordinate Systems

  • Re-establish a destroyed parcel corner from three surrounding control stations using both bearing-distance intersection and distance-distance intersection, then quantify the disagreement between the two solutions.

  • Explain how cadastral control networks are densified from geodetic control down to parcel level, and state the accuracy ratio required at each tier.

  • Construct a comparison table of the Kandawala datum and SLD99 covering reference ellipsoid, origin/realisation, relationship to global frames and typical current use in Sri Lankan practice.

  • Perform a geodetic-to-grid conversion using a transverse Mercator projection, explicitly applying point scale factor and meridian convergence, and state the sign conventions used.

Your checkpoint

A one-page datum and projection crosswalk plus a worked conversion sheet that takes a latitude/longitude pair to grid easting/northing with scale factor and convergence shown at each step.

Week 3

Geodesy, Geodetic Datums and Coordinate Systems & Survey Computations, Traverse and Least-Squares Adjustment

  • Set up and solve both a three-parameter and a seven-parameter Helmert transformation from at least four common control points, reporting residuals at each check point.

  • Derive observation equations for a closed traverse and adjust it by least squares, reporting adjusted coordinates, residuals, a posteriori variance factor and the full covariance matrix.

  • Detect and localise a single blunder in a redundant network using standardised residuals and an accepted data-snooping threshold.

  • Run a chi-square test on the adjustment's variance factor and write a short interpretation of whether the assumed stochastic model is credible.

Your checkpoint

A spreadsheet-based least-squares traverse adjustment workbook containing observations, design matrix, normal equations, residuals, standard errors and blunder test, accompanied by a 300-word interpretation of the results.

Week 4

Survey Computations, Traverse and Least-Squares Adjustment & Land Law, Survey Statute and Boundary Law

  • Compare Bowditch (compass) rule, transit rule and least squares on the same traverse dataset and quantify how much the final adjusted coordinates differ.

  • Summarise the statutory chain governing cadastral surveys: who is competent to survey, what must be lodged with the Survey Department, and the recognised grounds on which a plan can be rejected or returned.

  • Analyse three boundary-conflict scenarios (encroachment by a structure, long possession under the Prescription Ordinance, and a partition action under the Partition Law) and identify which survey evidence decides each.

  • Outline the title registration process under the Registration of Title Act and specify exactly what the surveyor contributes to the register (parcel geometry, identifiers, plan reference).

Your checkpoint

A six-page case-note set: three boundary-dispute scenarios, each resolved with a stated survey-evidence argument, the statutory provision relied on, and the plan evidence a court would expect.

Week 5

Land Law, Survey Statute and Boundary Law & GNSS Positioning and Modern Survey Technology

  • Draft a survey report structured to withstand cross-examination, covering datum and control, instrumentation, method, achieved accuracy, assumptions and limitations.

  • Design a GNSS observation plan for a static control campaign and an RTK detail survey, specifying session length, PDOP/satellite-geometry limits, occupation and re-observation rules.

  • Convert between geocentric XYZ and local East-North-Up coordinates for a GNSS baseline and explain where each frame is used in practice.

  • List the dominant GNSS error sources - ionospheric and tropospheric delay, multipath, antenna phase-centre variation, orbit error - and the mitigation applied to each.

  • Explain how network RTK and a national CORS infrastructure work, and define the field checks used to accept or reject an RTK fix before recording a point.

Your checkpoint

A two-page GNSS field SOP with observation plan, PDOP and fix-type acceptance thresholds, an independent check-shot regime, and explicit rejection criteria for suspect fixes.

Week 6

Engineering and Construction Surveying & Topographic Surveying, Mapping and Cartography

  • Design a horizontal circular curve and a vertical parabolic curve from given design parameters, computing tangent points, chainages, mid-ordinates and setting-out offsets.

  • Compute earthwork volumes for a chainage-based cross-section set using mean-sectional-area and prismoidal methods, and explain the direction and size of the discrepancy.

  • Prepare setting-out data (bearing, distance, cut/fill) for a road or pipeline alignment from a control baseline, including a check procedure for the first three set-out points.

  • Specify a topographic survey for a stated engineering purpose: scale, contour interval, spot-level density, feature codes and positional accuracy standard.

  • Produce a map layout that correctly carries scale bar, north point, legend, grid and metadata and that survives reduction to the required publication size.

Your checkpoint

A complete setting-out package for a 400 m road segment: curve data sheet, tabulated setting-out data for at least 11 chainages, and an earthwork volume sheet using both volume methods.

Week 7

Photogrammetry, Remote Sensing and LiDAR & Land Administration, Title Registration and Land Information Systems

  • Plan a UAV photogrammetric survey by deriving ground sample distance from sensor and flight parameters, then setting overlap, altitude and ground-control spacing to meet a stated accuracy target.

  • Trace the LiDAR processing chain from raw point cloud through classification, ground filtering and DEM generation, naming the quality check applied at each stage.

  • Interpret an orthophoto and DSM pair for a change-detection task and state the evidential limits of that interpretation.

  • Map the land administration data flow from approved survey plan to title register to LIS/GIS layer, identifying the parcel identifier, plan number and owner key at each step.

  • Diagnose common LIS data-quality failures - parcel gaps and overlaps, orphaned plan numbers, duplicate identifiers - and propose a remediation sequence.

Your checkpoint

A photogrammetric survey plan for a 50-hectare area at 1:2000: flight parameters, GSD derivation, ground-control layout, an accuracy budget and a deliverable list.

Week 8

Professional Practice, Ethics and Survey Office Management & Hydrographic and Special-Purpose Surveys

  • Apply a professional code of conduct to five short ethical scenarios covering conflict of interest, client pressure to shift a boundary, confidentiality of client data, misleading advertising and fee undercutting.

  • Set up office quality assurance: plan-checking by a second surveyor, records retention, version control of coordinate files, and a competency/training register.

  • Explain hydrographic survey fundamentals: chart datum, reduction of soundings, tide and transducer-draft corrections, and how IHO S-44 survey orders drive equipment and accuracy choice.

  • Sit two timed full-length mock examinations weighted to the syllabus percentages and categorise every error as knowledge gap, calculation slip or misread question.

Your checkpoint

A two-page personal exam-day reference sheet (key formulas, datum and projection constants, statutory citations) plus a scored mock-exam error log with a remediation action against each recurring error.

Milestones

Week 2: Closed-book check on Domains 1 and 2: correctly classify six boundary scenarios, reproduce the datum comparison table from memory, and complete a geodetic-to-grid conversion to within 0.002 m of the reference answer.

Week 4: Timed 60-question paper on Domains 1-3 at 90 minutes: score at least 70%, with a least-squares traverse adjustment fully reproduced by hand and every residual signed and explained.

Week 6: Setting-out and mapping test: compute curve and setting-out data for an unseen alignment with no more than one arithmetic error, and produce a map layout that passes a peer checklist for scale, legend, grid and north point.

Week 8: Two full mock exams at syllabus weighting, both scored at 75% or better, with every missed item logged to a domain and closed out before exam day.