Are these Engineering Drawing handwritten notes free?

Yes. Fill in the short form on this page and the PDF downloads right away. There is no charge.

Are these official university notes?

No. These are original Uncodemy revision notes for Engineering Drawing. They are not issued by AKTU or any other university and are not a copy of university material.

Which syllabus do the Engineering Drawing notes follow?

They follow the common topics of Indian B.Tech Mechanical syllabi for Engineering Drawing. Unit names and order differ by university, so check your own syllabus and skip or add topics as needed.

Is Engineering Drawing the same as Engineering Graphics?

In most universities the content is the same: scales, curves, projections, sections, development and isometric views. Some add a CAD lab. Check your own syllabus for the exact units.

Which method of projection do the notes use?

The notes use first-angle projection, which is the BIS standard used in India, and explain third-angle projection for comparison.

How should I practise projection of solids?

Draw the solid in its simple position first, then tilt it in the second stage. Redraw the worked examples in the notes and then try the practice list.

Engineering Drawing Handwritten Notes PDF

Key takeaways

Original Uncodemy revision notes in 8 units, following the common first-year B.Tech syllabus.
Worked constructions for a diagonal scale, an ellipse, a line inclined to HP and the development of a cone.
Projection of lines and solids carries the most marks in most papers. Practise it daily.
Not official university notes. Check your own syllabus; some universities call this subject Engineering Graphics.
Free download after a short form.

About these Engineering Drawing notes

These are original Uncodemy revision notes for Engineering Drawing, written by the Uncodemy trainer team in a clean handwritten style. They follow the topics found in the common Indian B.Tech Mechanical syllabus. They are not official university notes, not a textbook and not a copy of any university's material. Unit names, order and depth differ between universities (AKTU, state technical universities and autonomous colleges all use their own scheme), so check your own syllabus and tick the units you need before you start.

Engineering Drawing is a first-year subject in most B.Tech schemes, often taught with a CAD lab. The notes explain each construction in numbered steps, so you can follow them with a drawing board, mini-drafter, compass and set squares.

Each unit has short definitions, key formulas in highlighted boxes, comparison tables, "remember" points and worked examples with the steps shown. A list of commonly asked practice questions closes the notes. These are practice questions based on common syllabus topics, not verified past papers.

What's inside the Engineering Drawing notes

The PDF has 8 units plus a practice question list. Here is what each unit covers, so you can match it with your syllabus.

Unit 1: Basics of Engineering Drawing

Drawing sheets: ISO A-series sheet sizes and how a title block is laid out.
Types of lines: BIS line types (thick, thin, hidden, centre, cutting plane) and where each is used.
Lettering and dimensioning: single-stroke lettering, aligned and unidirectional dimensioning rules.

Unit 2: Scales

Representative fraction: what RF means and how to choose a scale for a drawing.
Plain, diagonal and vernier scales: when each is used and how many units each can read.
Diagonal scale construction: a fully worked RF 1/50 scale reading metres, decimetres and centimetres.

Unit 3: Engineering Curves

Conic sections: ellipse, parabola and hyperbola as sections of a cone, with eccentricity.
Ellipse construction: concentric circle method worked for a 120 mm by 80 mm ellipse.
Cycloidal curves and involute: cycloid, epicycloid, hypocycloid and involute with tangent and normal.

Unit 4: Orthographic Projection

Planes of projection: HP, VP and profile plane, and the four quadrants.
First and third angle: the difference between the two methods and their symbols.
Projection of points: positions of a point in each quadrant and how to draw them.

Unit 5: Projection of Lines and Planes

Lines: true length and true inclinations of lines parallel or inclined to HP and VP.
Worked line problem: an 80 mm line parallel to VP and inclined at 30 degrees to HP.
Projection of planes: regular plates (triangle, square, pentagon, hexagon, circle) inclined to one or both planes.

Unit 6: Projection of Solids

Types of solids: prisms, pyramids, cylinders and cones, and the terms axis, base and apex.
Axis inclined to one plane: the two-stage method for drawing tilted solids.

Unit 7: Sections and Development of Surfaces

Sections of solids: cutting planes, sectional views and the true shape of a section.
Development of surfaces: parallel line and radial line methods for prisms, cylinders, pyramids and cones.
Cone development: a worked lateral surface development for a 60 mm by 40 mm cone.

Unit 8: Isometric Projection and CAD

Isometric scale: isometric view versus isometric projection and the isometric scale.
Orthographic to isometric: building an isometric view from given front, top and side views.
CAD basics: common commands and why drawings are now made on CAD software.

How to revise Engineering Drawing

Engineering Drawing is a skill subject. Reading the notes is not enough; you have to draw.

Redraw every worked construction: do the diagonal scale, ellipse, line and cone examples once from the notes and once from memory.
Learn the method, not the picture: write the steps of each construction in your own words on the first page of your drawing book.
Fix your weak unit: most students struggle with lines inclined to both planes and solids inclined to HP. Give these two extra sessions each.
Use the practice list: attempt the 10 practice questions at the end of the PDF under timed conditions.
Check neatness: correct line types, labels, RF and the projection symbol earn marks on their own.

Exam focus: high-weightage Engineering Drawing topics

Papers usually mix one or two constructions with longer projection questions. These areas come up most often in common syllabi:

Projection of lines inclined to both HP and VP, with true length and true inclinations.
Projection of solids (prism, pyramid, cone) with the axis inclined to HP or VP.
Sections of solids with the true shape of the section, and development of the cut surface.
Isometric view from given orthographic views.
Diagonal or vernier scale for a given RF, and conic or cycloidal curves with tangent and normal.

Typical numericals worked in the notes

Diagonal scale of RF 1/50 to read up to 6 m and show a given length.
Ellipse with major axis 120 mm and minor axis 80 mm by the concentric circle method.
Line AB 80 mm long, parallel to VP, inclined at 30 degrees to HP.
Lateral surface development of a cone of 60 mm base diameter and 40 mm height.

For quick checks of sizes and units while practising, use the unit converter and the scientific calculator for angles and trigonometry.

A 7-day revision plan for Engineering Drawing

Use this plan in the week before your exam, after you have studied the subject once in class. Spend about two to three hours a day.

Day 1: Unit 1 (Basics of Engineering Drawing), Unit 2 (Scales). Read, close the PDF, then write the key formulas and definitions from memory.
Day 2: Unit 3 (Engineering Curves), Unit 4 (Orthographic Projection). Read, close the PDF, then write the key formulas and definitions from memory.
Day 3: Unit 5 (Projection of Lines and Planes), Unit 6 (Projection of Solids). Read, close the PDF, then write the key formulas and definitions from memory.
Day 4: Unit 7 (Sections and Development of Surfaces). Read, close the PDF, then write the key formulas and definitions from memory.
Day 5: Unit 8 (Isometric Projection and CAD). Read, close the PDF, then write the key formulas and definitions from memory.
Day 6: redo every worked example in the notes without looking at the solution, then check each step.
Day 7: attempt the practice question list at the end of the PDF in exam time, then go back to the units where you got stuck.

Who these notes are for

B.Tech semester exams: first-year students preparing for the Engineering Drawing or Engineering Graphics theory paper and practical sheets.
GATE ME basics: GATE ME does not test drawing directly, but projection and visualisation skills help in machine drawing, manufacturing and metrology questions. The notes cover basics and standard formulas; for GATE you still need a full question bank and previous papers from the official GATE site.
Interviews: core mechanical and design roles often ask you to read a drawing, explain first- versus third-angle projection or sketch an isometric view.
Diploma and lateral-entry students: the plain language and worked steps make the units easy to follow, but check which topics are in your own scheme.

How to use these notes with your textbook

These notes are short on purpose. They are meant for revision, not for learning Engineering Drawing for the first time. Study each unit once from your class notes, a standard textbook or the matching NPTEL course, and then use the PDF to revise quickly. If a topic in your syllabus is missing from the notes, mark it in your syllabus copy and study it from your textbook. If your teacher uses a different method or notation, follow your teacher in the exam. You can also request notes for another subject through the Uncodemy handwritten notes request page.

Download Engineering Drawing Handwritten Notes PDF