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# CBSE Class 11 Engineering Graphics Syllabus 2022-23

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CBSE Class 11 Engineering Graphics Syllabus 2022-23 includes Lines, angles and rectilinear figures, Circles, inscribing and circumscribing of circles, Orthographic projection of points and lines, Orthographic projection of right regular solids etc for the session 2022 – 2023. Here is the detailed syllabus. To download class 11 Engineering Graphics CBSE latest sample question papers for the 2023 exams, please install the myCBSEguide App which is the best mobile app for CBSE students. The myCBSEguide app not only provides you the CBSE class 11 Engineering Graphics model question papers but it also provides class 11 Engineering Graphics chapter-wise test papers, class 11 Engineering Graphics best revision notes and other study material for class 11 Engineering Graphics students.

CBSE Class – 11
Engineering Graphics (Code No. 046)
Syllabus (2022-23)

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

S.No.UnitMarksPeriods
IPLANE GEOMETRY1015
1. Lines, angles and rectilinear figures
2. Circles, inscribing and circumscribing of circles
IISOLID GEOMETRY3070
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
IIIMACHINE DRAWING3050
7. Orthographic projections of simple machine blocks
8. Isometric projection of laminae (plane figures)
Practicals3030
Total Marks100165

## I. PLANE GEOMETRY [15 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, regular polygons-pentagon, and hexagon. [8 Periods] Unit 2: Construction of circles, inscribing and circumscribing of circles in equilateral triangle, square, rhombus, regular polygons-pentagon and hexagon. [7 Periods]

## II. SOLID GEOMETRY [70 Periods]

Unit 4: Orthographic projection: dimensioning and conventions strictly as per SP 46:2003 (Revised). Orthographic projection of points and lines. [20 Periods] Unit 5: Orthographic projection of regular plane figures – triangle, square, pentagon, hexagon, circle and semi-circle. [14 Periods] Unit 6: Orthographic projection of right regular solids such as cubes; prisms and pyramids (square, triangular, pentagonal and hexagonal); cones; cylinders; spheres; hemi-spheres; frustum of pyramids and cone, when they are kept with their axis (a) perpendicular to HP/VP (b) parallel to HP and VP both. [20 Periods] Unit 7: Section of right regular solids such as cubes; prisms and pyramids (square, triangular, pentagonal, and hexagonal); cones; cylinders; spheres, kept with their axis perpendicular to HP/VP, made by a vertical cutting plane. [16 Periods]

## III. MACHINE DRAWING [50 Periods]

Unit 8: Orthographic projection of simple machine blocks. [25 Periods] Unit 9: Isometric Projection – Construction of isometric scale showing main divisions of 10 mm and smaller divisions of 1 mm each. Isometric projection (drawn to isometric scale) of regular plane figures – triangle, square, pentagon, hexagon, circle and semi-circle with their surface parallel to HP or VP (keeping one side either parallel or perpendicular to HP/VP). [25 Periods]

## PRACTICALS [30 Periods]

1. 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.
2. Drawing the following engineering curve through activities – ellipse (by trammel & thread method) on the ground/ drawing sheet/ plywood/ cardboard etc.
3. Developing the following solids with the help of cardboard/ thick paper.
1. cube, cuboid
2. prisms & pyramids (triangular, square, pentagonal and hexagonal)
3. right circular cylinder and cone
4. Preparing the section of solids (prisms, pyramids, sphere, 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 or inclined to the base.

Note:

1. 10 practicals (minimum two each from aforementioned four 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:
 (a) Practicals (2) 15 Marks (b) Drawing/ Sketch 05 Marks (c) Viva-voce 05 Marks (d) Sessional Work 05 Marks Total 30 Marks

## ACTIVITY

Industrial Visits (Two) to any industry/ manufacturing plant to acquaint the students with the present – day methods & technology for better conceptual understanding can be done by virtual tour of the factory/plant. The following links are given as an example for same: