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:
- In all Assembly drawings, half sectional front view will be asked. Side/End view or Top View/Plan will be drawn without
- 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
- (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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