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# CBSE Syllabus for Class 11 Engineering Graphics 2019-20

Table of Contents

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CBSE Syllabus for Class 11 Engineering Graphics 2019-20 contains all the topics of this session. myCBSEguide provides you latest Syllabus for Class 11. Engineering graphics is the art of manipulation of designs of a variety of components, especially those related to engineering Student can Download Latest CBSE Syllabus for class 11 in PDF format is now available in myCBSEguide mobile app.

CBSE Syllabus for class 11 Engineering Graphics 2019-20

## CBSE Syllabus Class 11 Engineering Graphics

Course Structure

One Paper (Theory) : 3 Hours (70 Marks)
One Paper (Practical) : 3 Hours (30 Marks)

Unit I

1. PLANE GEOMETRY (16 Marks) (38 Periods)
1. Lines, angles and rectilinear figures
2. Circles and tangents
3. Special Curves: ellipse, parabola, involute, cycloid, helix and sine curve

Unit II

1. SOLID-GEOMETRY (27 Marks) (86 Periods)
1.  Orthographic-projections of points and line
2. Orthographic projection of regular plane figures.
3. Orthographic projections of right regular solids.
4. Section of solid-figures

Unit III

1. MACHINE DRAWING (27 Marks) (50 Periods)
1. Orthographic projections of simple machine-blocks
2. Isometric-projection of laminae (plane figures)
3. Development of surfaces
• Practical (30 Marks) (66 Periods)
• Total Marks : (100 Marks) (240 Periods)

THEORY

I. PLANE GEOMETRY (38 Periods)
Printing English alphabets (capital and small) and numerals in standard proportions. Unidirectional/aligned system of dimensioning as per SP: 46-2003 (Revised)

Unit 1: Construction of lines, angles and their divisions. Simple questions based on triangles, square, rhombus, trapeziums, regular polygons-pentagon, hexagon, and octagon. (08 Periods)

Unit 2: Construction of circles, external and internal tangents of circles, inscribing and circumscribing of circles in equilateral triangle, square, rhombus, regular polygons-pentagon, hexagon, and octagon. (10 Periods)

Unit 3: Construction of Engineering curves: (20 Periods)

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

II. SOLID GEOMETRY (86 Periods)

Unit 4: Methods of orthographic projections and dimensioning strictly as per SP: 46- 2003 revised conventions. Projection of points and lines. (20 Periods)

Unit 5: Orthographic projections of Regular Plane figures – triangle, square, pentagon, hexagon, circle and semi-circle. (12 periods)

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. (14 Periods)

Unit 7 : Section of right regular solids such as cubes, prisms and pyramids (square, triangular, pentagonal, and hexagonal), cones, cylinders and spheres, kept with their axis perpendicular to HP/VP, made by the (a) Horizontal cutting plane (b) Vertical cutting plane (c) Inclined cutting plane. (40 Periods)

III. MACHINE DRAWING (50 Periods)

Unit 8:  Orthographic projections of simple machine blocks. (20 Periods)

Unit 9: 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 semicircles with their surface parallel to HP or VP and it’s one side or diagonal or diameter should be either parallel or perpendicular to HP/VP. (20 Periods)

Unit 10: Development of the surfaces of following solids: (10 Periods)

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

PRACTICALS (66 Periods)

1. Developing “Prisms” and “Pyramids” with the help of cardboard (thick paper).
2. Developing different types of packaging boxes (cartons).
3. Making different types of graphic designs/ murals for interior/ exterior decorations in colour using the knowledge of geometrical figures with the use of any Computer Software such as Collab-CAD and/or any equivalent pertinent software.
4. Drawing ellipse by Trammel and Thread method on the ground/drawing sheet/plywood/ cardboard, etc.
5. Preparing top-view (plan) of a classroom, Home: Drawing room / Bedroom / Study room / Kitchen, Engineering Graphics room drawing different objects therein.
6. Drawing through activities: Involutes, cycloid, helix and sine curves listing their uses in daily life.
7. 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 combination of above solids.

ACTIVITY
Industrial Visits (Two) to any industry/ manufacturing plant to acquaint the students with the present – day methods & technology for better conceptual understating.

Note :

1. 20 activities (minimum two each from aforementioned seven points) are to be assessed.
2. In all the practicals, drawing/sketching of the views should be incorporated and evaluated accordingly.
3. The scheme of evaluation is as follows:
1. Practicals (2) (15 Marks)
2. Drawing/Sketch (05 Marks)
3. Viva-voce (05 Marks)
4. Sessional Work (05 Marks)
Total: 30 Marks

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