About this previous year paper
GEOINFORMATICS – B.Tech (SEM IV), RCE-402
This is a 3-hour, 70-mark theory examination that checks a student’s knowledge of photogrammetry, remote sensing, digital image processing, GIS, GPS, and geospatial data concepts.
The paper is divided into three sections: basic concepts (A), detailed explanations (B), and analytical/computational questions (C).
SECTION A — Short Conceptual Questions (2 × 7 = 14 Marks)
This section contains 7 brief questions covering fundamentals of geoinformatics.
Topics include:
Photogrammetric survey Remote sensing
Electromagnetic spectrum in remote sensing Digital image processing
GIS definition Attribute data
GPS basics
These questions test basic definitions and conceptual clarity.
SECTION B — Descriptive / Explanation Questions (7 × 3 = 21 Marks)
Attempt any 3 of 5 questions.
These require detailed explanation, diagrams, or examples.
Topics include:
Aerial photography + influencing factors
Remote sensing + advantages + ideal remote sensing system
Digital image & digital image data formats
GIS components (hardware, software, data, methods, people)
GPS principle of position determination
This section checks analytical understanding and descriptive knowledge.
SECTION C — Long / Analytical Questions (7 marks each)
Each question has two alternative parts (a or b).
Requires calculations, comparisons, or deeper technical explanation.
Q3 – Aerial Surveys / Area Calculation
Difference between aerial photography & aerial photogrammetry
OR
Calculate flooded ground area using dot grid on aerial photo
Q4 – Remote Sensing Concepts
Spectral reflectance curves, atmospheric windows, resolution
OR
Multiconcept in remote sensing + flood study applications
Q5 – Digital Image Processing
Image rectification & its types
OR
Image classification: supervised vs unsupervised
Q6 – GIS Data Models & Functions
Raster & vector data
OR
Functions of GIS + GIS applications
Q7 – GPS Segments / DCPS
Functional segments of GPS
OR
Working principle of DCPS
This section tests problem-solving, differentiation, technical reasoning, and spatial data understanding.
OVERALL PURPOSE OF THE EXAM
The paper evaluates whether students can:
Understand fundamentals of photogrammetry & aerial surveying
Explain remote sensing concepts (EM spectrum, reflectance, resolution, sensors)
Describe digital image processing & classification methods
Work with GIS concepts (data models, components, applications)
Understand GPS working principles & functional segments
Apply geospatial techniques for real-world problems (floods, mapping, analysis)
It tests both theoretical knowledge and practical understanding essential for geospatial, civil engineering, environmental, and GIS-related fields.