Revised Syllabus for Engineering Drawing-1^st year (Common for all Engineering trades under CTS but not applicable for Draughtsman trade Group)

1.Engineering Drawing – Introduction

• Introduction to Engineering Drawing and Drawing Instruments –
• Conventions
• Viewing of engineering drawing sheets.
• Method of Folding of printed Drawing sheet as per BIS SP: 46-2003

2.Drawing Instrument

• Drawing board, T-square, Drafter (Drafting M/c), Set squares, Protector, Drawing Instrument Box (Compass, Dividers, Scale, Diagonal Scales etc.), pencils of different grades, Drawing pins/Clips.

3.Free hand drawing of –

• Lines, polygons, ellipse etc.
• Geometrical figures and blocks with dimension
• Transferring measurement from the given object to the free hand sketches.
• Solid objects – Cube, Cuboids, Cone, Prism, Pyramid, Frustum of Cone with dimensions.
• Free hand drawing of hand tools and measuring tools, simple fasteners (nuts, bolts, rivets etc.) trade related sketches

4.Lines

• Definition, types and applications in drawing as per BIS: 46-2003
• Classification of lines (Hidden, centre, construction, extension, Dimension, Section)
• Drawing lines of given length (Straight, curved)
• Drawing of parallel lines, perpendicular line
• Methods of Division of line segment

5.Drawing of Geometrical figures:

• Definition, nomenclature and practice of –
• Angle: Measurement and its types, method of bisecting.
• Triangle: different types
• Rectangle, Square, Rhombus, Parallelogram.
• Circle and its elements
• Different polygon and their values of included angles. Inscribed and circumscribed polygons

6.Lettering & Numbering –

• Single Stroke, Double Stroke, Inclined.

7.Dimensioning and its Practice

• Definition, types and methods of dimensioning (functional, non- functional and auxiliary)
• Position of dimensioning (Unidirectional, Aligned)
• Types of arrowhead
• Leader line with text
• Symbols preceding the value of dimension and dimensional tolerance.

8.Sizes and layout of drawing sheets

• Selection of sizes
• Title Block, its position and content
• Item Reference on Drawing Sheet (Item list)

9.Method of presentation of Engg. Drawing

• Pictorial View
• Orthographic View
• Isometric View

10.Symbolic representation – different symbols used in the trades

• Fastener (Rivets, Bolts and Nuts)
• Bars and profile sections
• Weld, Brazed and soldered joints
• Electrical and electronics element
• Piping joints and fitting

11.Projections

• Concept of axes plane and quadrant
• Orthographic projections
• Method of first angle and third angle projections (definition and difference)
• Symbol of 1st angle and 3rd angle projection in 3rd angle.

12.Orthographic projection from isometric projection

13.Reading of fabrication drawing