# CBSE Class 12 Engineering Graphics Syllabus 2023 2024

CBSE Class 12 Syllabus 2023 – 24 For Class 12 Engineering Graphics Syllabus Download Online CBSE Syllabus Class 12 Engineering Graphics Syllabus As per Guidelines.

### CBSE पाठ्यक्रम 12th Class Engineering Graphics Syllabus As Per NCERT

सीबीएसई बोर्ड 12वीं सिलेबस 2023 | CBSE Syllabus 2023 2024 | CBSE Engineering Graphics Syllabus for Class XII | CBSE Class 12 Engineering Graphics Syllabus www.cbse.gov.in

CBSE Latest Syllabus for Class 12 Engineering Graphics Syllabus  is important for students to prepare their study time to time. Here we are provided New Edition CBSE Syllabus 2023. Stay tuned with Us for Get All Subjects Solution Biology MCQ, Physics MCQ, Difference between in Physics, Difference between in Biology

### Exam Pattern for Year 2023 – 24

• Competency Focused Questions in the form of MCQs/ Case Based Questions, Source-based Integrated Questions or any other type = 40%
• Select response type questions(MCQ) = 20%
• Constructed response questions (Short Answer Questions/ Long Answer type Questions, as per existing pattern) = 40%

In case you have missed:- NCERT Solutions for Class 12

### CBSE Class 12 Engineering Graphics Syllabus 2023 2024

COURSE STRUCTURE

 S.No. Unit Name Marks Periods i) Isometric Projections of Solids 25 60 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 45 114 Practical 30 66 Total Marks 100 240

THEORY

Unit I: Isometric Projection of Solids

(i) 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 scale.

ii)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).

iii)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:

1.) Hidden lines are not required in isometric projection.

2.) Indicate the direction of viewing.

Unit II: Machine Drawing (as per SP46: 2003)

• Drawing of machine parts

(i) Drawing to full size scale with instruments.

(Internal choice will be given between any two of the following).

combination of nut and bolt with or without washer for assembling two parts together.

(ii) 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.

• Assembly drawings and Dis-Assembly drawings

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

1) Bearings

(i) Open-Bearing

(ii) Bush- Bearing

2) Rod-Joints

(i) Cotter-joints for round-rods (Sleeve and cotter joint)

(ii) Cotter-joints for square rods (Gib and cotter-joint)

3) Tie-rod and Pipe-joint

(i) Turnbuckle

(ii) Flange pipe joint

Note:

1) In all Assembly drawings, half sectional front view will be asked. Side/End view or Top View/Plan will be drawn without section.

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 only.

3) (a) In all sectional views, hidden lines/ edges are not to be shown.

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

Updated: April 7, 2023 — 12:43 pm