CBSE Class 11 Engineering Graphics 2026-27 Syllabus

The syllabus is divided into three units: (i) Plane Geometry (ii) Solid Geometry (iii) Machine Drawing. Theory paper is of 70 marks.

Exam Structure

	Unit	Marks
Unit - I	Plane Geometry	10
1	Introduction
2	Lines, angles and rectilinear figures
3	Circles, inscribing and circumscribing of circles
Unit - II	Solid Geometry	30
4	Orthographic projection of points and lines
5	Orthographic projection of regular plane figures
6	Orthographic projection of right regular solids
7	Section of solid
Unit - III	Machine Drawing	30
8	Orthographic projections of simple machine blocks
9	Isometric projection of laminae (plane figures)
	Total Marks	70

I. Plane Geometry

Unit 1

Introduction: English alphabets (capital and small) and numerals in standard proportions; Unidirectional/aligned system of dimensioning and conventions as per SP 46:2003 (Revised); Engineering drawing instruments. 

Unit 2

Construction of lines, angles, and their divisions. Simple questions based on triangles, square, rhombus, regular polygons-pentagon, and hexagon.

Unit 3

Construction of circles, inscribing and circumscribing of circles in equilateral triangle, square, rhombus, regular polygons-pentagon, and hexagon.

II. Solid Geometry

Unit 4

Orthographic projection: dimensioning and conventions strictly as per SP 46:2003 (Revised). Orthographic projection of points and lines.

Unit 5

Orthographic projection of regular plane figures - triangle, square, pentagon, hexagon, circle, and semi-circle.

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.

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.

III. Machine Drawing

Unit 8

Orthographic projection of simple machine blocks.

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).