Workshop Calculation & Science - Year 2 (ITI Electrical Group)

Trigonometry, statistics, friction, levers, work, power and energy, heat transfer, AC circuit calculations and estimation problems for electrical and electronics trades.

12 MonthsDuration 6Chapters26Topics

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Syllabus · पाठ्यक्रम

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01Unit 1: Trigonometry 5 topics

Measurement of angles
Trigonometric ratios - sin, cos, tan
Values for standard angles
Heights and distances
Use of trigonometric tables / calculator

02Unit 2: Statistics 4 topics

Collection and tabulation of data
Mean, median and mode
Bar charts and pie charts
Simple frequency distribution

03Unit 3: Friction, Levers and Simple Machines 4 topics

Friction and coefficient of friction
Levers - classes and principle of moments
Mechanical advantage, velocity ratio and efficiency
Work, power and energy problems

04Unit 4: Heat and Heat Transfer 4 topics

Specific heat and heat calculations
Conduction, convection and radiation
Thermal conductivity
Heat produced by electric current

05Unit 5: AC Circuit Calculations 5 topics

Resistance, inductive and capacitive reactance
Impedance of series RL, RC and RLC circuits
Power factor and its improvement
Star and delta relations
Three-phase power calculations

06Unit 6: Estimation and Costing 4 topics

Estimating wiring material
Rate analysis
Cost of energy and electricity bill
Estimate for a small domestic installation

About

You will be able to

Use trigonometric ratios to find heights, distances and angles in trade problems
Calculate mean, median and mode of trade data
Solve problems on friction, levers, simple machines, work, power and efficiency
Calculate heat required and explain modes of heat transfer
Solve AC circuit problems - impedance, power factor and three-phase power
Prepare simple material estimates and costing for electrical work

Who it is for

ITI Electrician and Electronics Mechanic trainees of Year 2 (NCVT / DGT CTS)
Electrical group trainees revising Workshop Calculation & Science for the CBT exam

What you need

Workshop Calculation & Science Year 1 completed

Questions

Which syllabus is followed?

The NCVT / DGT CTS Workshop Calculation & Science Year 2 syllabus for electrical group trades. Where your ITI (SCVT) syllabus differs, the centre follows your own syllabus.

Is trigonometry difficult?

It is taught with simple trade examples such as ladders, poles and cable lengths, and plenty of practice.

Are AC circuit numericals included?

Yes. Impedance, power factor and three-phase power problems are practised for the CBT exam.