CBSE Class 12 Engineering Graphics Syllabus 2023 – Chapters, Topics, Weightage

Exam Updates
CBSE, Syllabus
March 9, 2021

Are you looking for CBSE Class 12 Engineering Graphics Syllabus 2023 Chapters, Topics, Weightage is available in this article. All the information is similar to the Central Board Of Secondary Education. CBSE changing the Syllabus (सीबीएसई कक्षा 12 इंजीनियरिंग ग्राफिक्स पाठ्यक्रम) Year to year. So we will provide the latest syllabus updates also. In this article provide a CBSE Class 12 Engineering Graphics Syllabus structure in the academic year of 2020. You can download the CBSE Class 12 Engineering Graphics Syllabus PDF here.

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CBSE Class 12 Engineering Graphics Syllabus 2023

Content in this Article

Units Names, Marks, and the Periods were mentioned below in a table format for the candidates to understand. And, the PDF was also mentioned below.

S.No	Unit Name	Marks	Periods
I	Isometric Projections of Solids	25	40
II	Machine Drawing A. Drawing of Machine parts B. Assembly Drawing and Dis-assembly drawings 1. Bearings 2. Rod joints 3. Tie-rod and Pipe joint	45	75
Practical		30	45
	Total Marks	100	160

Download CBSE Class 12 Engineering Graphics Syllabus 2023

Download CBSE Class 12 Engineering Graphics Syllabus 2023

Download CBSE Class 12 Engineering Graphics Syllabus 2023

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Isometric Projection of Solids
Machine Drawing
Practical

CBSE Class12 Engineering Graphics Syllabus Mark Weightage

S. No.	Unit	Marks
1	Isometric Projection of Solids	25
2	Machine Drawing 1. Drawing of Machine parts 2. Assembly Drawing and Dis-assembly drawings a)Bearings b)Rod’s joints c)Tie-rod and pipe joints d)Couplings	45
	Practical	30
	Total Marks	100

The time of an examination is 3 hours and marks are 100

Units in CBSE Class 12 Engineering Graphics & No. of Periods

Isometric Projection of Solids-(50 Periods)

Machine Drawing-(118 Periods)

Drawing of Machine parts
Assembly Drawing and Dis-assembly drawings
a) Bearings
b) Rod joints
c) Tie-rod and pipe joints
d) Couplings

Practical-(78 Periods)

Engineering Graphics Chapters & Topics in CBSE Class 12

Unit 1: Isometric Projection of Solids (50 Periods)

Construction of isometric scale showing main divisions of 10mm and smaller divisions of 1mm, also showing the leading angles. Drawing helping view/s such as triangles, pentagon, hexagon, etc., using an isometric scale.
- Isometric projections (drawn to isometric scale) of solids such as a cube, regular prism and pyramids (triangular, square, pentagonal, and hexagonal), cone, cylinder, sphere, hemisphere, frustum of right regular pyramids (triangular, square, pentagonal, hexagonal) and cone, when they are cut by a plane parallel to the base. The axis and the base side of the solid should be either perpendicular to HP / VP or parallel to HP and VP. (Indicate the direction of viewing)
Combination of two solids (except “frustum” of Pyramids and Cone) Keeping the base side parallel or perpendicular to HP/VP and placed centrally together, the axis of both the solids should not be given parallel to HP.

Unit 2: Machine Drawing

Drawing of machine parts

Drawing to a full-size scale with instruments.
(Internal choice will be given between any two of the following).
Introduction of threads: Standard profiles of screw threads square, knuckle, B.S.W.,
Metric (external and internal). Bolts (Square, Hexagonal, Tee and Hook);
Nuts: (Square and Hexagonal), Plain washer, a combination of nut and bolt with or without washer for assembling two parts together, Single riveted lap joint with standard dimensions.
Free-hand sketches
(Internal choice will be given between any two of the following).
Conventional representation of external and internal threads; studs (plain, square-neck, and collar), screws (round-head, cheese-head, 900 flat counter sunk-head, hexagonal socket head and grub-screw). Types of rivets:- snap head, pan head-without tapered neck, flathead, and 600 countersunk flat head. Types of sunk-keys (rectangular taper, woodruff and double-head feather key with gib head on both ends).

Assembly drawings and Dis-Assembly drawings (Internal choice will be given between an Assembly drawing and a Dis-Assembly drawing).
Bearings

Open-Bearing
Bushed-Bearing

Rod-Joints

Cotter-joints for circular-rods (socket and spigot joint)
Cotter-joints for round-rods (sleeve and cotter joint)
Cotter-joints for square rods (Gib and cotter-joint)

Tie-rod and Pipe-joint

Turnbuckle
Flange pipe joint

Couplings

Unprotected Flange Coupling (having socket and spigot arrangement)
Protected Flange Coupling

Pulleys

Solid cast iron pulley – (up to 200 mm diameters) having a solid web

PRACTICALS

One paper (Practical): 3 Hours
To perform the following tasks from the given views of the prescribed Machine
Block (One).
Value-Points

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Download the Engineering Graphics CBSE Class 12 Syllabus 2023-19

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Those who are looking for CBSE Class 12 Engineering Graphics Syllabus 2023 are provided in this article. All the above information is related to the Central Board Of Education. Check once in this article and start your preparation for the Board Of Examination. We are provided the Engineering Graphics Subject for CBSE Class 12 PDF also, and we can download the complete Syllabus for CBSE Class 12 in the academic year of 2020-21. Don’t forget this article to share with your friends.