PEC EPE Geoinformatics study guide
PEC EPE Geoinformatics · Work through your exam, one topic at a time.
The Pakistan Engineering Council (PEC) Examination of Professional Engineers (EPE) in Geoinformatics is a professional licensure assessment for engineers who work with spatial data, positioning, mapping, and geographic information systems. It is intended for graduates and practicing engineers seeking recognition in geoinformatics, including those in surveying, GIS, remote sensing, and geospatial project roles. The PEC EPE Geoinformatics study guide has 10 sections and about 3,447 words.
01Geodesy and Reference Systems
The exam tests whether you can keep the three surfaces - the physical Earth (geoid), the reference ellipsoid, and the grid you finally plot on - strictly separate, and whether you can move coordinates between systems, frames, epochs and height types without sign errors. Ellipsoidal height h is measured from the reference ellipsoid and is what GNSS delivers natively.
387 words, about 2 min02Surveying and Engineering Surveying
This domain tests whether you can close a survey, distribute misclosure with a defensible rule, and state clearly whether the result meets a stated tolerance. Marks are won on closure arithmetic and on knowing which observations control which.
371 words, about 2 min03Satellite Positioning and GNSS
The exam probes whether you understand why GNSS reaches centimetre accuracy - error correlation, differencing and geometry - rather than quoting specifications from memory. Pseudorange (code) gives metre-level positions; carrier phase gives millimetre precision but carries an unknown integer number of cycles (the ambiguity).
365 words, about 2 min04Photogrammetry and Remote Sensing
Questions test the chain from sensor geometry to a usable product: orientation, ground sample distance, elevation-model type and radiometric interpretation. Interior orientation: focal length, principal point and lens distortion.
360 words, about 2 min05Cartography and Map Projections
Cartography questions test whether you can pick a projection for a purpose and quantify the distortion it introduces. Conformal projections (Mercator, Transverse Mercator, Lambert Conformal Conic) preserve angles and local shape and distort area away from the line of zero distortion.
369 words, about 2 min06Geographic Information Systems
GIS questions test data models, topology and whether you can predict the output of an operation before running it. Vector data uses points, lines and polygons with explicit topology (adjacency, connectivity, containment).
309 words, about 2 min07Spatial Data Management, Databases and Standards
Questions test whether you can design a schema, index spatial data and exchange it without silent loss. Normalisation removes redundancy: 1NF requires atomic values, 2NF removes partial dependencies on part of a composite key, 3NF removes transitive dependencies.
332 words, about 2 min08Spatial Analysis and Modeling
Spatial analysis questions test whether you can match a method to the question and defend your parameters. Overlay and buffers answer proximity and containment questions; buffers are Euclidean unless a network or cost surface is used.
295 words, about 1 min09Land Administration, Cadastre and Survey Law
Questions test which registration system applies, how boundaries are proved, and how a dispute is resolved. Deed registration records the instrument.
317 words, about 2 min10Professional Practice, Ethics and Project Management
This domain tests professional judgement under uncertainty: what a competent, honest practitioner does when scope, data or instructions are deficient. You owe the standard of a reasonably competent practitioner in the same field - not perfection.
342 words, about 2 min