# CBSE Engineering Graphics Class 11 Syllabus 2023 – Chapters, Topics, Weightage

CBSE Engineering Graphics Class 11 Syllabus 2023: Check out the Information about CBSE Class 11 Engineering Graphics Syllabus 2023, Chapter, Topics – Download PDF in this article. Students who are searching for the Central Board of Secondary Education (CBSE) Engineering Graphics Syllabus for Class 11, 2020-21 are on the right track. Class XI Students may not have to worry about their Exam Syllabus. As we have provided the Details about Class 11 CBSE Engineering Graphics Syllabus 2023 (सीबीएसई इंजीनियरिंग ग्राफिक्स कक्षा 11 का सिलेबस) in this article.

## CBSE Engineering Graphics Class 11 Syllabus 2023

The table which was mentioned below shows the units and the marks, and also periods of the Engineering Graphics subject.

 S.No. Unit Marks Periods PLANE GEOMETRY 1. Lines, angles, and rectilinear figures 2. Circles, inscribing, and circumscribing of circles 10 15 SOLID GEOMETRY 3. Orthographic projection of points and lines 4. Orthographic projection of regular plane figures 5. Orthographic projection of right regular solids 6. Section of solids 30 70 MACHINE DRAWING 7. Orthographic projections of simple machine blocks 8. Isometric projection of laminae (plane figures) 30 50 Practicals 30 30 Total Marks 100 165

This was the PDF to download the CBSE Engineering Graphics Class 11 Syllabus 2023.

## CBSE Engineering Graphics Class 11 Syllabus 2023-20

 S.No. Units – CBSE Engineering Graphics Class 11 Syllabus Marks Unit – I Plane Geometry 16 Marks 1 Lines, angles and rectilinear figures 2 Circles and tangents 3 Special curves: ellipse, parabola, involute, cycloid. helix and sine-curve Unit – II Solid Geometry 27 Marks 4 Orthographic-projections of points and line 5 Orthographic projection of regular plane figures 6 Orthographic projections of right regular solids 7 Section of solid-figures Unit – III Machine Drawing 27 Marks 8 Orthographic projections of simple machine-blocks 9 Isometric-projection of laminae (plane) figures 10 Development of surfaces IV. Practical 30 Marks Total Marks 100 Marks

### Engineering Graphics Syllabus for Class XI

1. PLANE GEOMETRY

Printing English alphabets (capital and small) numerals in standard proportions. Unidirectional/aligned system of dimensioning as per

Unit – 1: Construction of lines, angles and their divisions. Simple questions based on triangles, square, rhombus, trapeziums, regular polygons-pentagon, hexagon, and octagon. Unit – 2: Construction of circles, external and internal tangents of circles, inscribing, circumscribing circles in an equilateral triangle, square, rhombus, regular polygons-pentagon, hexagon, and octagon.

Unit – 3: Construction of Engineering curves:

• Ellipse by concentric circles, intersecting arcs, and intersecting lines.
• Parabola by intersecting lines and intersecting arcs.
• Involute of a circle, cycloid, helix and sine curve.

2. SOLID GEOMETRY

Unit – 4: Methods of orthographic projections and dimensioning strictly as per SP: 46- 2003 revised conventions. Projection of points, lines.

Unit – 5 : Orthographic projections of Regular Plane figures – triangle, square, pentagon, hexagon, circle and semi-circle.

Unit – 6: Orthographic projections of right regular solids such as cubes, prisms, and pyramid, (square, triangular, pentagonal and hexagonal), cones, cylinders, spheres, hemispheres and frustum of pyramids and cone when they are kept with their axis

(a) Perpendicular, to HP/VP

(b) Parallel to one plane and inclined to the other

(c) Parallel to HP and VP both.

Unit – 7: Section of solids under the same conditions mentioned above made by the horizontal, vertical and inclined planes.

III. MACHINE DRAWING

Unit – 6: Orthographic projections of simple machine blocks.

Unit – 7: Construction of isometric scale showing main divisions of 10 mm and smaller divisions of 1 mm each. Isometric projection (drawn to isometric scale) of figures such as triangles, squares, pentagons, hexagons, circles and semi-circles with their surface parallel to HP or VP and its one side or diagonal or diameter should be either parallel or perpendicular to HP/VP.
Unit – 8: Development of the surfaces of the following solids :

• Cube, cuboid, prisms-triangular, square, pentagonal and hexagonal.
• Pyramids (triangular, square, pentagonal and hexagonal).
• Right circular cylinder and cone.

## CBSE Engineering Graphics Practical Syllabus 2023-20

 (A) Practicals (2) 15 Marks (B) Drawing/ Sketch 05 Marks (C) Viva-voce 05 Marks (D) Sessional Work 05 Marks Total Marks 30 Marks

### Practicals

• Developing “Prisms” and “Pyramids” with the help of cardboard (thick paper).
• Making different types of graphic designs/ murals for interior/ exterior decorations in color using the knowledge of geometrical figures with the use of any Computer Software such as Collab-CAD and /or any equivalent pertinent software.
• Developing different types of packaging boxes (cartons).
• Preparing top-view (plan) of a classroom, Home: Drawing room / Bedroom / Study room / Kitchen, Engineering Graphics room drawing different objects therein.
• Drawing ellipse by Trammel and Thread method on the ground/drawing sheet /plywood/cardboard, etc
• Drawing through activities: Involutes, cycloid, helix and sine curves listing their uses in daily life.
• Preparing the following sections of solids (prisms, pyramids, spheres, etc.) with clay, soap, thermocol, plasticine, wax or any other material easily and economically available. When the cutting plane is: parallel to the base, perpendicular to the base and inclined to the base. Also creating different objects with a combination of above solids.

Note :

• 20 activities (minimum two each from a fore mentioned seven points) are to be assessed.
• In all the practicals, drawing/sketching of the views should be incorporated and evaluated accordingly.