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 Module 1: Introduction to Engineering Drawing 6 topics
- Principles of Engineering Graphics and their significance
- Usage of drawing instruments
- Lettering
- Conic sections including rectangular hyperbola
- Cycloid, epicycloid, hypocycloid and involute
- Scales – plain, diagonal and vernier scales
Unit 2 Module 2: Orthographic Projections 3 topics
- Principles of orthographic projections and conventions
- Projection of points and lines inclined to both planes
- Projection of inclined planes and auxiliary planes
Unit 3 Module 3: Projections of Regular Solids and Floor Plans 3 topics
- Projections of regular solids and inclined solids with auxiliary views
- Simple annotation, dimensioning and scale
- Floor plan drawing including windows, doors, and fixtures (WC, bath, sink, shower, etc.)
Unit 4 Module 4: Sections and Sectional Views of Right Angular Solids 3 topics
- Sections and sectional views of right angular solids (prism, cylinder, pyramid, cone) with auxiliary views
- Development of surfaces of right regular solids
- Drawing sectional orthographic views of geometric solids and industry/dwelling objects (foundation to slab only)
Unit 5 Module 5: Isometric Projections 4 topics
- Principles of isometric projection and isometric scale
- Isometric views and conventions
- Isometric views of lines, planes, simple and compound solids
- Conversion of isometric views to orthographic views and vice‑versa
Unit 6 Module 6: Overview of Computer Graphics and CAD Theory 3 topics
- Computer graphics 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 (CAD implementation)
Unit 7 Module 7: Customisation & CAD Drawing 5 topics
- Setup of drawing page and printer including scale settings
- Setting up units and drawing limits
- ISO and ANSI standards for coordinate dimensioning and tolerancing
- Orthographic constraints and snapping to objects (manual and automatic)
- Producing drawings using coordinate input methods for straight lines and circles
Unit 8 Module 8: Annotations, Layering & Other Functions 12 topics
- Applying dimensions and annotations to objects
- Layer setup and usage – creating, editing and customizing layers
- Modifying line lengths (extend/lengthen)
- Printing drawings to paper
- Orthographic projection techniques
- Drawing sectional views of composite right regular geometric solids and projecting true shapes
- CAD modelling 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 and section views
- Spatial visualization exercises
- Dimensioning guidelines and tolerancing techniques
- Multi‑view dimensioning and scaling for dwelling drawings
Unit 9 Module 9: Design Project and BIM Introduction 9 topics
- Team design project illustrating geometry and topology of engineered components
- Creation of engineering models and presentation in standard 2D blueprint form and as 3D wire‑frame and shaded solids
- Meshed topologies for engineering analysis and tool‑path generation for component manufacture
- Geometric dimensioning and tolerancing (GD&T)
- Use of solid‑modeling software for creating associative models at component and assembly levels
- Floor plans including windows, doors and fixtures (WC, bath, sink, shower, etc.)
- Applying colour coding according to building drawing practice
- Drawing sectional elevation showing foundation to ceiling
- Introduction to Building Information Modelling (BIM)
Unit 10 == END OF UNITS==
The syllabus lists no separate topics for this unit.
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