DETAILED SYLLABUS - JUNIOR INSTRUCTOR (ARITHMETIC-CUM-DRAWING)

DETAILED SYLLABUS – JUNIOR INSTRUCTOR (ARITHMETIC-CUM-DRAWING)

Category No: 006/2022

Department: Industrial Training

Module 1

Unit, Fractions

• Classification of Unit System
• Fundamental and Derived Units F.P.S, C.G.S, M.K.S and SI Units
• Measurement Units and Conversion
• Factors, HCF, LCM and Problems
• Fractions – Addition, Subtraction, Multiplication and Division
• Decimal Fractions – – Addition, Subtraction, Multiplication and Division
• Solving Problems by using calculator

Square Root: Ratio and Proportions, Percentage

• Square and Square Root
• Simple problems using calculator
• Application of Pythagoras Theorem and related problems
• Ratio and Proportions
• Direct and Indirect proportion
• Percentage
• Changing percentage to decimal

Material Science

• Types of metals
• Physical and Mechanical Properties of metals
• Types of ferrous and non-ferrous metals
• Introduction of iron and cast iron
• Difference between iron and steel, alloy steel and carbon steel
• Properties and uses of rubber, timber and insulating materials

Mass, Weight, Volume, and Density

• Mass, volume, density, weight & specific gravity
• Related problems for mass, volume, density, weight & specific gravity

Module II

Speed and Velocity, Work Power and Energy

• Rest, motion, speed, velocity, difference between speed and velocity, acceleration and retardation
• Related problems on speed and velocity
• Potential energy, Kinetic Energy and related problems
• Work, power, energy, HP, IHP, BHP and efficiency

Heat & Temperature and Pressure

• Concept of heat and temperature, effects of heat, difference between heat and temperature
• Scales of temperature, Celsius, Fahrenheit, Kelvin and Conversion between scales of temperature
• Temperature measuring instruments, types of thermometer, pyrometer and transmission of heat – Conduction, convection and radiation
• Co-efficient of linear expansion and related problems with assignments
• Problem of Heat loss and heat gain with assignments
• Thermal conductivity and insulators
• Boiling point and melting point of different metals and Nonmetals
• Concept of pressure and its units in different system

Basic Electricity

• Introduction and uses of electricity, molecule, atom, how electricity is produced, electric current AC, DC and their comparison, voltage, resistance and their units
• Conductor, Insulator, types of connections- Series and Parallel
• Ohm’s Law, relation between VIR & related problems
• Electrical power, energy and their units, calculation with assignments
• Magnetic induction, self and mutual inductance and EMF generation
• Electrical Power, HP, Energy and units of electrical energy

 

Module III

Mensuration

• Area and perimeter of square, rectangle and parallelogram
• Area and Perimeter of Triangle
• Area and Perimeter of Circle, Semi-circle , circular ring, sector of circle, hexagon and ellipse
• Surface area and Volume of solids- cube, cuboids, cylinder, sphere and hollow cylinder
• Finding lateral surface area , total surface area and capacity in liter

Levers and Simple Machines

• Simple machines, Effort and load, mechanical advantage, velocity ratio, efficiency of machine, relation between efficiency, velocity ratio and mechanical advantage
• Lever and its types

Trigonometry

• Measurement of Angle, Trigonometrical Ratios, Trigonometric Table
• Trigonometry-Application in calculating height and distance (Simple Applications)

Module IV

Friction

• Advantages and disadvantages, Laws of friction, coefficient of friction, angle of friction, simple problems related to friction
• Friction – Lubrication
• Co – efficient of friction, application and effects of friction in workshop practice

Centre of Gravity

• Centre of gravity and its practical application

Area of cut – out regular surfaces and area of irregular surfaces

• Area of cut – out regular surfaces – circle, segment and sector of circle
• Related problems of area of cut – out regular surfaces – circle, segment and sector of circle
• Area of irregular surfaces and application related to shop problems

Algebra

• Addition, Subtraction, Multiplication & Divisions
• Algebra – Theory of indices, Algebraic formula, related problems

Module V

Elasticity

• Elastic, plastic materials, stress, strains and their units and young modulus
• Ultimate stress and working stress

Heat Treatment

• Heat treatment and advantages
• Different heat treatment process – Hardening, Tempering, Annealing, Normalising, Case Hardening

Profit and Loss

• Simple problems on profit & loss
• Simple and compound interest

Estimation and Costing

• Simple estimation of the requirement of material etc., as applicable to the trade
• Problems on estimation and costing

Module VI

Engineering Drawing – Introduction

• Introduction to Engineering Drawing and Drawing Instruments

1. Conventions
2. Viewing of engineering drawing sheets
3. Method of Folding of printed Drawing sheet as per BIS SP: 46-2003

Drawing Instrument

• Drawing board, T-square, Drafter (Drafting M/c), Set squares, Protector, Drawing Instrument Box (Compass, Dividers, Scale, Diagonal Scales etc, pencils of different grades, Drawing pins/ Clips 

Free hand drawing of

• Lines, polygons, ellipse etc
• Geometrical figures and blocks with dimension
• Transferring measurement from the given object to the free hand sketches.
• Solid objects – Cube, Cuboids, Cone, Prism, Pyramid, Frustum of Cone with dimensions
• Free hand drawing of hand tools and measuring tools, simple fasteners (nuts, bolts, rivets etc.) trade related sketches

Lines

• Definition, types and applications in drawing as per BIS: 46-2003
• Classification of lines (Hidden, centre, construction, extension, Dimension, Section)
• Drawing lines of given length (Straight, curved)
• Drawing of parallel lines, perpendicular line
• Methods of Division of line segment 

Module VII

Drawing of Geometrical figures

Definition, nomenclature and practice of –

• Angle: Measurement and its types, method of bisecting.
• Triangle: different types
• Rectangle, Square, Rhombus, Parallelogram.
• Circle and its elements
• Different polygon and their values of included angles. Inscribed and circumscribed polygons

Lettering & Numbering

• Single Stroke, Double Stroke, Inclined

Dimensioning and its Practice

• Definition, types and methods of dimensioning (functional, non- functional and auxiliary)
• Position of dimensioning (Unidirectional, Aligned)
• Types of arrowhead
• Leader line with text
• Symbols preceding the value of dimension and dimensional tolerance.

Sizes and layout of drawing sheets

• Selection of sizes
• Title Block, its position and content
• Item Reference on Drawing Sheet (Item list)

Module VIII

Method of presentation of Engg. Drawing

• Pictorial View
• Orthographic View
• Isometric View

Symbolic representation – different symbols used in the trades

• Fastener (Rivets, Bolts and Nuts)
• Bars and profile sections
• Weld, Brazed and soldered joints
• Electrical and electronics element
• Piping joints and fitting

Projections

• Concept of axes plane and quadrant
• Orthographic projections
• Method of first angle and third angle projections (definition and difference)
• Symbol of 1st angle and 3rd angle projection in 3rd angle.
• Orthographic projection from isometric projection

Module IX

• Construction of scales and diagonal scales, Conic sections (Ellipse and Parabola)
• Sketches of nuts, bolt, screw thread, different types of locking devices Sketches of foundation, Double nut, Castle nut, Pin, etc.
• Rivets and rivetted joints, welded joints
• Sketches of pipes and pipe joints
• Assembly view of Vee blocks, Bush & Bearing, Different types of Coupling viz., Muff coupling, Half Lap Coupling, Flange coupling, etc. Simple work holding device Drawing details of two mating blocks and assembled view
• Sketch of shaft and pulley, belt, gear, gear drives

Module X

• Sign and Symbols of Electrical, Electronics and related trades
• Sketch of Electrical and Electronics/ trade related component
• Electrical and Electronics wiring diagram/ trade related Layout diagram
• Electrical earthing diagram – Drawing the schematic diagram of plate and pipe earthing.
• Electrical, Electronics/ trade related circuit diagram
• Block diagram of Instruments/ equipment of related trades

For detailed syllabus,

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Course Features :
⭐ Overseer സിലബസ് പ്രകാരമുള്ള പ്രീ റെക്കോർഡഡ് ക്ലാസ്സുകൾ
⭐️ ഓരോ വീഡിയോ ലെസണിനോടൊപ്പവുമുള്ള Assessment test
⭐️ Model Tests
⭐️ Live Interactive Quiz
⭐️ Overseer Test series
⭐️ Faculty support

Course duration – 1 year

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