ISC Class 12 Syllabus 2028 Geometrical and Mechanical Drawing

ISC
INDIAN SCHOOL CERTIFICATE
EXAMINATION

YEAR 2028

GEOMETRICAL AND
MECHANICAL DRAWING
(869)

Developed by:
Research, Development and Curriculum Division (RDCD)
CISCE

January 2026
____________________________________________________________________________________________

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Council for the Indian School Certificate Examinations (CISCE)

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endeavours, empowering them to contribute towards
a humane, just and pluralistic society, promoting
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aspirations.

CLASS XII

There will be two papers in the subject:
Paper I - Theory: 3 hours…… 80 Marks
Paper II - Project Work ……. 20 Marks

PAPER I (THEORY) : 80 Marks
Drawing (Engineering)
Candidates will be required to answer all questions.
The preparation of working drawings and assemblies from dimensioned sketches based on the following:
(a) fastening (nuts, bolts, studs, keys, cotters, pins, locking devices);
(b) rigid and flexible joints;
(c) screw threads; their projection and the proportions of standard types, profiles and proportions of spur gear
teeth; conventional methods of drawing gear wheels;
(d) transmission of motion and power, bearings, supports, shafts, coupling and clutches;
(e) pressure transmission in pipes using water, oil, steam and gas, joints, unions, tees and bends, expansion joints,
pressure packing;
(f) constructional details of prime moves and simple machine tools;
(g) the use of reference points and planes in dimensioning, machining and surface texture symbols;
(h) toleranced dimensions involving the use of IS:919 or B.S. 4500 Limits and Fits for Engineering.
Candidates will be expected to follow the recommendations given in IS:696 - 1972 Indian Standard, Code of
Practice for General Engineering Drawing. They should be familiar with both First and Third Angle projections.

PAPER II (PROJECT WORK) : 20 Marks
In addition to the syllabus prescribed above, candidates are also required to be assessed in Project Work.
All candidates will be required to have completed three project sheets, selecting at least one from Section A
(Orthographic Projections) and one from Section B (Assembly Drawings). Each Project sheet will carry 5 Marks.
The Project work will be assessed by the subject teacher and the Visiting Examiner appointed locally and approved
by CISCE.
Mark allocation for each Project sheet (5 marks)*:
Criteria Marks
1. Project size / completeness 1
2. Line Quality 1
3. Neatness 1
4. Accuracy 1
5. Title Block 1
TOTAL 5

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Marks out of 20 will be distributed as given below:
1. 3 Project sheets × 5 Marks 15 Marks
2. Viva-Voce (Visiting Examiner) 5 Marks
TOTAL 20 Marks

Instructions for Project Work:
Candidates must use A2 size (Half Imperial) drawing sheets to complete all projects. A sample project sheet
layout with specifications, is given below:

• Candidates must use the given layout and specifications to complete each project sheet.
• Accuracy, neat and clean work is expected from candidates while completing the project sheets.
• Candidates need not draw / paste the questions.

For assembly drawing, candidates need to draw:
(i) Full sectional F.V.
(ii) T.V. by using 1st OR 3rd angle method of projection (omitting all the hidden lines)

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PROJECT SHEETS
Candidates are required to have completed three project sheets, selecting at least one from Section A
(Orthographic Projections) and one from Section B (Assembly Drawings).

SECTION A - ORTHOGRAPHIC PROJECTIONS
Project Sheet 1

Draw by using 1st OR 3rd angle method of projection i) F.V, ii) T.V. & iii) L.H.S.V

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Project Sheet 2

Draw by using 1st OR 3rd angle method of projection i) F.V, ii) T.V. & iii) R.H.S.V

10

Project Sheet 3

Draw by using 1st OR 3rd angle method of projection i) F.V, ii) T.V. & iii) L.H.S.V

X

11

Project Sheet 4

Draw by using 1st OR 3rd angle method of projection i) F.V, ii) T.V. & iii) L.H.S.V

X

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SECTION B - ASSEMBLY DRAWINGS

Project Sheet 1

Draw full sectional F.V & T.V of the following details of machine Parts. (omitting all hidden details)

13

Project Sheet 2
Draw full sectional F.V. & T.V. of the following details of machine Parts. (omitting all hidden details)

14

Project Sheet 3

Draw full sectional F.V & T.V of the following details of machine Parts. (omitting all hidden details)

15

Project Sheet 4
Draw full sectional F.V & T.V of the following details of machine Parts. (omitting all hidden details)

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SAMPLE TABLE FOR PROJECT WORK
S. No. Unique Identification PROJECT SHEETS TOTAL MARKS
Number (Unique ID) of (Total 3 sheets of 5 marks each)
the candidate A B C D
Teacher Visiting Examiner Average Marks Viva-Voce by (C + D)
(A + B ÷ 2) Visiting
Examiner on
all three
project sheets
15 Marks 15 Marks 15 Marks 5 Marks 20 Marks
1

2

3

4

5

6

7

8

9

10

*For breakup of the 5 Marks (for each project sheet) to be awarded separately by the Teacher and the Visiting Examiner, please refer to the table
giving the criteria for mark allocation for each project.

NOTE: VIVA-VOCE of 5 Marks on the Project Sheets is to be conducted only by the Visiting Examiner and should be based on the Project
Sheets only.

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