ISC Class 12 Syllabus 2027 Engineering Science

ISC YEAR 2027

INDIAN SCHOOL CERTIFICATE
EXAMINATION

ENGINEERING SCIENCE
(867)

February 2025
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Council for the Indian School Certificate Examinations (CISCE)

MISSION STATEMENT

The Council for the Indian School Certificate
Examinations is committed to serving the nation's
children, through high quality educational
endeavours, empowering them to contribute towards
a humane, just and pluralistic society, promoting
introspective living, by creating exciting learning
opportunities, with a commitment to excellence.

ETHOS OF CISCE

Trust and fair play.
Minimum monitoring.
Allowing schools to evolve their own niche.
Catering to the needs of the children.
Giving freedom to experiment with new ideas
and practices.
Diversity and plurality - the basic strength for
evolution of ideas.
Schools to motivate pupils towards the
cultivation of:
Excellence - The Indian and Global
experience.
Values - Spiritual and cultural - to be the bedrock
of the educational experience.
Schools to have an 'Indian Ethos', strong roots in
the national psyche and be sensitive to national
aspirations.

CLASS XII
There will be two papers in the subject: 8. Magnetism. Magnetic properties of iron and steel.
The magnetic circuit; qualitative treatment only,
Paper I - Theory: 3 hours…… 80 Marks with examples from transformers and machines.
Paper II - Project Work ……. 20 Marks The compass needle. Magnetic effect of current in
straight wire, single turn coil and solenoid, treated
PAPER I (THEORY): 80 Marks qualitatively. Electromagnets and their simple
applications. Relation of direction of current in
Note: All questions will be set in the S.I. System. The conductor and lines of magnetic force applied.
unit abbreviations to be used in all question papers in Examples of the application of electromagnets to
this subject will be those contained in the Guide to the include electric trembler bell and relay.
use of International System (SI) units SP; 5-1969
(Published by the Indian Standards Institution). 9. The simple circuit. Conductors and insulators.
Electromotive force, potential difference, current,
1. Strength of materials. Simple problems. Hooke's quantity and resistance; the volt, ampere, coulomb
law, stress and strain. Young's modulus. Tension ampere-hour and ohm. Ohm's law. Measurement
and compression. Elastic limit. Ultimate strength. of resistance, including Wheatstone bridge,
Factors of safety. Resistivity. Resistors in series and in parallel.

2. Friction. Conditions affecting friction. Lubrication. 10. Heating effect of current. Energy and power.
Conditions should include types of materials, their Conversion of electrical to mechanical energy and
surface finish and wetness or dryness. vice versa. The joule, watt, and kilowatt-hour.
Simple applications of heating effect. Effect of
3. Limiting friction. Coefficients of friction. temperature on resistance. Temperature
4. Work. Work done by constant and by varying coefficient. Examples to include various domestic
force; graphical representation of and calculations heating appliances and filament lamps.
thereon. Energy, potential and kinetic. 11. Chemical effect of current field. Electrolytes.
Conservation of energy and conversion into work, Electrolysis. Electrochemical equivalent.
work done in rotation. Torque. Production of current by chemical action. Simple
5. Machines. Simple single-string pulley systems. voltaic cell. Primary and secondary cells.
Simple and differential wheel and axle. Weston Polarisation: prevention and removal. Cells in
pulley block. Screw jack. Worm (single start series and in parallel. Chemical equations are not
thread and wheel). Gear and belt drives. Velocity required.
ratio, mechanical advantage and efficiency. 12. Current-carrying conductor in magnetic field. The
6. Power. Simple treatment of steam and internal D.C. motor including series and shunt windings.
combustion engines. Indicators diagrams. Galvanometers, voltmeters and ammeters. Shunts
Indicated mean effective pressure. Indicated and and multipliers. A qualitative treatment of
brake horsepower. Methods of measurement of multiple D.C. motors is included.
power. Rope brake and Prony brake. Hydraulic 13. Electromagnetic induction: the laws of induction.
power (as given by the product of constant Back e.m.f. of motor. Starting resistance for D.C.
pressure and rate of volume change). Mechanical motor. Simple a.c. and D.C. generators. Relation
efficiency. Relationship between rev/min and of direction of lines of force, motion of conductor
working strokes per minute in double-acting steam and current in coil. Eddy currents. Transformers.
engines and in two and four-stroke internal The induction coil; the coil ignition system. A
combustion engines. The oscillating cylinder qualitative treatment of multipole D.C. generators
steam engine is not required. is included.
7. Momentum. Conservation of momentum,
including rate of change of momentum and
relationship with mass and acceleration.
Knowledge of coefficient of restitution is not
required.

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PAPER II (PROJECT WORK): 20 Marks type of material, surface finish,
dryness/wetness). Discuss giving reasons.
In addition to the syllabus prescribed above, candidates • Frictional force opposes relative motion
are also required to be assessed in Project Work. (impending or actual) between two surfaces in
PROJECT WORK FOR CLASS XII contact. Discuss. Also, show graphically the
relation between force applied F and force of
The Project work will be assessed by the subject static friction f s , / force of kinetic friction f k for
teacher and the Visiting Examiner appointed locally any pair of surfaces in contact.
and approved by CISCE. • A block of wood is given a push which slides
All candidates will be required to have completed two along a horizontal, flat table surface, coming
projects from any topic/s covered in theory. to a stop. Discuss what happens to the
momentum of the block?
Mark allocation for each project (10 marks) *: • A ball rolls without slipping on a perfectly flat
Criteria Marks plane of infinite extent. Will it roll forever?
1. Title of the Project and 1 Discuss.
• Discuss advantages and disadvantages of
Introduction friction in daily life.
2. Content 3 6. Observe ten articles at home (five simple machines
3. Presentation and originality 2 and five articles in which a combination of
4. Conclusion/Comments/Summary 1 machines is being used) such as plier, scissors,
5. Viva-Voce (Visiting Examiner) 3 knife, cycle/motorcycle, ramp, steering wheel,
roller of the cord for blinds, juicer/mixer/blender,
TOTAL 10 etc. For each of the articles selected:
List of suggested assignments for Project Work: • Identify the type of machine/s used.
• Draw simple diagrams for each item selected
1. Show mathematically that the energy of a simple and mark the load, effort and fulcrum. Write
pendulum is conserved. Also draw and interpret expressions for mechanical advantage,
the following for the same: velocity ratio and efficiency.
• displacement-time graph • Discuss briefly the utility of each type of
• kinetic energy-displacement graph machine used.
• potential energy-displacement graph 7. Study electricity bills of your home issued by the
• total (mechanical) energy and displacement electricity department from January to December.
graph. Prepare a month wise analysis of units of
electricity consumed and bill paid in a tabular
2. Study and represent graphically the work done on form. Represent the same graphically. Suggest
a body of mass m under the action of a constant some ways in which you can economise electricity
force and by a varying force. Show calculations consumption at home.
and discuss. 8. Observe a transformer installed in your locality
3. Study the fundamental forces in nature governing and draw its labelled diagram. Discuss the
the diverse phenomena of the macroscopic and principle on which it works and the reasons for
microscopic world. Discuss the progress related to energy losses. Find out the transmission and
the unification of these forces. distribution mode of electrical energy from a
power plant to a consumer. Discuss its pros and
4. You have studied about the strength of cons.
materials. In this context, discuss the following: 9. Assemble a household circuit comprising three
• Stress and strain, their types, Hooke’s law, bulbs, three on/off switches, a fuse, and a power
Young’s modulus, elastic limit, permanent set source from the given materials (Three bulbs
and ultimate strength. (6V,1W) each, main switch of a power supply
• Take a stress-strain curve for a metal and mark (battery eliminator), three switches, fuse (0.6A),
the relevant points on the graph. connecting wires with red and black plastic
• Is it correct that a material that stretches more coating, fuse wire, a plier and a cutter).
Draw a circuit diagram of the actual layout and
is more elastic? Discuss with examples. write the theory and procedure involved.
5. Observe any five surfaces at home: NOTE: No question paper for Project work will
• Which surface produces more friction and be set by CISCE.
which produces less friction (on the basis of

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SAMPLE TABLE FOR PROJECT WORK

S. Unique PROJECT 1 PROJECT 2 TOTAL
No. Identification MARKS
Number A B C D E F G H I J
(Unique ID)
of the Teacher Visiting Average Viva-Voce Total Teacher Visiting Average Viva-Voce Total Marks (E + J)
candidate Examiner Marks by Marks Examiner Marks by (H + I)
(A + B ÷ Visiting (C + (F + G ÷ Visiting
2) Examiner D) 2) Examiner
7 Marks 7 Marks 7 Marks 3 Marks 10 7 Marks 7 Marks 7 Marks 3 Marks 10 Marks 20 Marks
Marks
1

2

3

4

5

6

7

8

9

10

*For breakup of the 7 Marks 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 (3 Marks) for each Project is to be conducted only by the Visiting Examiner and should be based on the Project only.

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