(SEM IV) THEORY EXAMINATION 2018-19 GEOINFORMATICS

GEOINFORMATICS – B.Tech (Semester IV), RCE-402

This is a 3-hour, 70-mark theory examination designed to assess the student’s understanding of remote sensing, GIS, GPS, photogrammetry, projections, and digital image analysis. The paper is divided into three major sections and covers both conceptual and analytical abilities.
 

SECTION A — Short Answer Questions (2 × 7 = 14 Marks)

This section contains 7 brief questions to test fundamental concepts in Geoinformatics.

Topics include:

Definitions of crab and drift (aerial photography)                                   Stefan–Boltzmann Law

Difference between satellite & microwave remote sensing                    Thematic maps

Cylindrical projection                                                                               Image filtering

Undershoot & overshoot (vector GIS errors)

These questions check basic theoretical knowledge.
 

SECTION B — Descriptive Questions (7 × 3 = 21 Marks)

Students must attempt any 3 out of 5.
This section tests applied concepts and understanding of remote sensing & GIS tools.

Topics include:

Flying altitude calculation using photogrammetric principles    Electromagnetic spectrum (with sketch)

Image enhancement techniques                          Components of GIS

Static, kinematic & differential GPS

These questions evaluate the student’s ability to explain processes and perform calculations.
 

SECTION C — Long Answer Questions (7 marks each)

Each question offers choice (a or b) and requires in-depth explanations, diagrams, or numerical solutions.

Major topics include:

Q3 – Photogrammetry

Tilt distortion & proof of radial distortion

Vertical aerial photography calculations (airbase length & scale)

Q4 – Remote Sensing Concepts

Components of real remote sensing system

Energy interaction with earth surface materials

Q5 – Digital Image Processing

Principal Component Transformation (PCT) & Fourier Transform techniques

Supervised vs unsupervised classification

Q6 – GIS Applications

Highway planning using GIS

Overlay analysis in GIS

Q7 – Map Projections & Navigation Systems

UTM Projection System

GNSS & advantages of GPS

This section checks analytical skills, theoretical depth, diagrammatic understanding, and subject application.
 

OVERALL PURPOSE OF THE EXAM

The question paper is designed to test a student’s capability to:

Apply photogrammetry concepts & solve mapping problems

Understand electromagnetic radiation and remote sensing physics

Use image enhancement & classification techniques

Understand GPS/GNSS operations

Use GIS for planning, analysis & decision-making

Interpret projections, mapping systems & data models

It ensures students gain strong foundational knowledge in Geoinformatics, essential for civil engineering, planning, surveying, and mapping applications.