CBSE 11th Class Engineering Graphics Syllabus


Course Structure

Units Topics Marks
Unit I Plane Geometry 16
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
4 Orthographic-projections of points, lines laminae, (plane) and solids
5 Section of solid-figures
Unit III Machine Drawing 27
6 Orthographic projections of simple machineblocks
7 Isometric-projection of laminae (plane) figures
8 Development of surfaces
Unit IV Practical 10
Total 70

Course Syllabus

Unit I: Plane Geometry

  • Printing English alphabets (capital and small) numerals in standard proportions

  • Unidirectional/aligned system of dimensioning as per SP: 46-2003 (Revised)

Chapter 1: Lines, angles and rectilinear figures

  • Construction of lines
  • Angles and their divisions
  • Simple questions based on −
    • Triangles
    • Square
    • Rhombus
    • Trapeziums
    • Regular polygons-pentagon
    • Hexagon
    • Octagon

Chapter 2: Circles and tangents

  • Construction of circles
  • External and internal tangents of circles
  • Inscribing
  • Circumscribing circles in equilateral triangle
  • Square
  • Rhombus
  • Regular polygons-pentagon
  • Hexagon and octagon

Chapter 3: Construction of Engineering curves

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

Unit II: Solid Geometry

Chapter 4: Orthographic-projections

  • Methods of orthographic projections and dimensioning strictly as per SP: 46- 2003 revised conventions

  • Projection of −

    • Points

    • Lines

    • Regular plane figure

  • Projection of right regular solids such as −

    • Cubes

    • Prisms

    • 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 one plane and inclined to the other

      c. Parallel to HP and VP both

Chapter 5: Section of solid-figures

  • Section of solids under the same conditions mentioned above made by the −

    • Horizontal

    • Vertical

    • Inclined planes (also showing true-shape of section)

Unit III. Machine Drawing

Chapter 6: Orthographic projections of simple machine blocks

Chapter 7: Isometric-projection of laminae (plane) figures

  • 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

    • 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)

Chapter 8: Development of surfaces

  • Cube
    • Cuboid
    • Prisms-triangular
    • Square
    • Pentagonal
    • Hexagonal
  • Pyramids
    • Triangular
    • Square
    • Pentagonal
    • Hexagonal
  • Right circular cylinder and cone

Unit IV: Practical

  • Developing "Prisms" and "Pyramids" with the help of card board (thick paper)

  • Developing different types of packing boxes (cartons)

  • 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


    • PHOTOSHOP, etc.

  • Drawing ellipse by Trammel and Thread method on the ground / drawing sheet / plywood / cardboard, etc.

  • Preparing top-view (plan) of a class room, Home −

    • Drawing room / Bedroom / Study room / Kitchen

    • Engineering Graphics room

    • Drawing different objects kept in rooms

  • Drawing through activities −

    • Involutes

    • Cycloid

    • Helix

    • 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 combination of above solids.

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