 ## ITI electrician workshop calculation and science semester 4 syllabus

##### AITT OVERVIEW
 SUBJECT PAPER NUMBER PART NO. of QUESTIONS TOTAL MARKS TRADE THEORY PAPER -1 A 50 150 WORK SHOP CAL & SCIENCE PAPER – 2 A 25 75 ENGINEERING DRAWING PAPER – 3 NA NA 75
##### ELECTRICIAN SEMESTER 4 WORKSHOP AND CALCULATION AND SCIENCE SYLLABUS
• Friction: – Laws of friction, co- efficient of friction, angle of friction, simple problems related to friction.
• Lubrication
• Concept on terms like pressure, atoms-pheric pressure, gauge pressure.
• Heat treatment necessity difference methods.
• Forces: – Resolution and composition of forces.
• Representation of force by vectors, simple problems on lifting tackles like jib wall, crane-Solution of problems with the aid of vectors.
• General condition of equilibriums for series of forces on a body. Law of parallelogram, Triangle Law, Lami’s theorem.
• Centre of gravity:- Centre of gravity concept and C.G. of different lamina. Equilibrium different kinds stable, unstable and neutral. Law of parallelogram force. Triangle law, Lami’s theorem  stable, unstable and neutral equilibrium.
• Number system:- decimal and binary, Octal Hexa decimal. BCD code, conversion from decimal to binary and vice-versa, all other conversions. Practice on conversions.
• Estimation & costing:-Simple estimation of the requirement of materials etc. as applicable to the trade. Problems on estimation and costing.
• Further Mensuration:-
• Volumes of frustums including conical frustums.
• Graph- Basics, abscissa, co-ordinate etc.
• Y = mx and Y= mx + c graph
• Simple Problems on Profit & Loss.
• Simple and compound interest.

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