BT-105 RGPV B.Tech
Engineering Graphics (EG)
Previous year papers and the official syllabus are free to read, no account needed.
Previous Year Papers
8 papers, latest Dec 2025
- BT-105 paper, Dec 2025
- BT-105 paper, Jun 2025
- BT-105 paper, Dec 2024
- BT-105 paper, Jun 2024
- BT-105 paper, Dec 2023
- BT-105 paper, Jun 2023
Syllabus, notes and important questions for BT-105
Syllabus units
Topics as the official RGPV syllabus lists them.
Unit 1 Introduction to Engineering Drawing 6 topics
- Principles of Engineering Graphics and their significance
- Usage of drawing instruments
- Lettering
- Conic sections including the rectangular hyperbola (general method only)
- Cycloid, epicycloid, hypocycloid and involute
- Scales – plain, diagonal and vernier scales
Unit 2 Orthographic Projections 3 topics
- Principles of orthographic projections – conventions
- Projections of points and lines inclined to both planes
- Projections of planes – auxiliary planes
Unit 3 Projections of Regular Solids 3 topics
- Projections of regular solids inclined to both planes – auxiliary views
- Simple annotation, dimensioning and scale drawing
- Floor plans including windows, doors and fixtures (WC, bath, sink, shower, etc.)
Unit 4 Sections and Sectional Views of Right Angular Solids 3 topics
- Sections and sectional views of prism, cylinder, pyramid, cone – auxiliary views
- Development of surfaces of right regular solids – prism, pyramid, cylinder, cone
- Sectional orthographic views of geometrical solids and industry/dwelling objects (foundation to slab only)
Unit 5 Isometric Projections 2 topics
- Principles of isometric projection – isometric scale, isometric views, conventions
- Isometric views of lines, planes, simple and compound solids
Unit 6 Overview of Computer Graphics 3 topics
- Computer technologies impacting graphical communication
- Theory of CAD software – menu system, toolbars, drawing area, dialogs, shortcut menus, command line, status bar, zoom methods, select/erase objects
- Isometric views of lines, planes, simple and compound solids
Unit 7 Customisation & CAD Drawing 5 topics
- Setup of drawing page and printer – scale settings, units, drawing limits
- ISO and ANSI standards for coordinate dimensioning and tolerancing
- Orthographic constraints, snap to objects manually and automatically
- Producing drawings using various coordinate input methods to draw straight lines
- Applying various ways of drawing circles
Unit 8 Annotations, layering & other functions 11 topics
- Applying dimensions and annotations to objects
- Setting up and using layers – creation, editing, customized layers
- Modifying existing lines (extend/lengthen)
- Printing documents using the print command
- Orthographic projection techniques
- Drawing sectional views of composite right regular geometric solids and projecting true shape of sectioned surface
- CAD modeling of parts and assemblies – parametric and non‑parametric solid, surface and wireframe models
- Part editing and two‑dimensional documentation of models
- Planar projection theory – perspective, isometric, multiview, auxiliary, section views
- Spatial visualization exercises
- Dimensioning guidelines, tolerancing techniques, multi‑view scaling of dwellings
Unit 9 Team Design Project 9 topics
- Geometry and topology of engineered components – creation of engineering models
- Presentation in standard 2D blueprint and 3D wire‑frame/shaded solids
- Meshed topologies for engineering analysis and tool‑path generation
- Geometric dimensioning and tolerancing
- Use of solid‑modeling software for associative component and assembly models
- Floor plans – windows, doors, fixtures (WC, bath, sink, shower, etc.)
- Colour coding according to building drawing practice
- Drawing sectional elevations from foundation to ceiling
- Introduction to Building Information Modelling (BIM)
Exam insights
Counted from 7 past BT-105 papers.
Marks asked per paper, by unit
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Unit 1 Introduction to Engineering Drawing 25 marks
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Unit 2 Orthographic Projections 23 marks
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Unit 3 Projections of Regular Solids 12 marks
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Unit 4 Sections and Sectional Views of Right Angular Solids 13 marks
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Unit 5 Isometric Projections 12 marks
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Unit 6 Overview of Computer Graphics 10 marks
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Unit 7 Customisation & CAD Drawing 2 marks
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Unit 8 Annotations, layering & other functions 12 marks
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Unit 9 Demonstration of a simple team design project 3 marks
Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.
Asked again and again
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Construct a (forward reading) vernier scale for the given RF to measure up to the required length with the required least count and mark the given distances on it.
Asked 3 times: 2025, 2024, 2022
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Draw a diagonal scale for the given RF / map distance to measure the required units and mark the given distances on it.
Asked 3 times: 2024, 2023, 2022
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Draw projections of a hexagonal lamina with an edge/side related to VP/HP and its surface inclined to VP.
Asked 2 times: 2025, 2023