CBSE Class 12 Engineering Graphics Syllabus 2023-24 (Latest Syllabus PDF)

CBSE class 12 engineering graphics new syllabus 2023-24 is updated below. Check class 12 engineering graphic syllabus for 2023-2024. Engineering graphics is unquestionably one of  indispensable tools for  Engineers, Architects, Technocrats, Surveyors, Draftsmen, Designers and many other professionals.

CBSE Class 12 Engineering Graphics New Syllabus 2023-24

Explore below CBSE class 12 syllabus for engineering graphics.

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

THEORY

Unit I: Isometric Projection of Solids                                                               

• 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 isometric
• Isometric projection (drawn to isometric scale) of solids such as cube; regular prisms and pyramids (triangular, square, pentagonal and hexagonal); cone; cylinder; sphere; hemisphere. 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 any two above mentioned solids keeping the base side parallel or perpendicular to HP/VP and placed centrally together (Axis of both the solids should not be given parallel to HP).

Note: Hidden lines are not required in isometric projection.

Unit II: Machine Drawing

A. Drawing of machine parts

• • Drawing to full size scale with 25 Periods (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 head, Hexagonal head; Nuts – Square head, Hexagonal head; Plain washer; combination of nut and bolt with or without washer for assembling two parts together.

• Free-hand sketches: (Internal choice will be given between any two of the following). Conventional representation of external and internal threads; Types  of studs – Plain stud, Square-neck stud, Collar stud; Types of rivets – Snap head, Pan head (without tapered neck), Flat head, 60⁰ countersunk flat head.

B. Assembly drawings and Dis-Assembly drawings

Note:

1. In all Assembly drawings, half sectional front view will be asked. Side/End view or Top View/Plan will be drawn without
2. In all Dis-assembly drawings, only two orthographic views (one of the two views may be half in section or full in section) will be asked of any two parts
3. (a) In all sectional views, hidden lines/ edges are not to be

(b) In all full views, hidden/edges are to be shown.

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.

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