Units

System of Units

S.I. Units

Conversion of Units

S.I. Prefixes and Multiplication Factors

Quantities and Units

Fractions

Fractions

Least Common Multiple (L.C.M.)

Highest Common Factor (H.C.F.)

Conversion of Fraction to Decimal and Vice versa

Scientific Calculation

Square Roots

Square Root

Rationalisation

Simple Calculator

Ratio and Proportion

Ratio

Proportion

Time, Work and Labour Related Problem

Average

Percentage

Convert fractional Number into Percentage

Convert Percentage into Decimal

Convert Decimal into Percentage

Simple Calculation

Metals

Properties of Metals

Iron

Types of Metals

Differences between Ferrous and Non-ferrous Metals

Non-ferrous Alloys

Mass, Weight and Density

Mass

Weight

Differences between Mass and Weight

Density

Relative Density

Laws of Floatation

Velocity and Speed

Rest and Motion

Speed

Velocity

Differences between Velocity and Speed

Acceleration

Retardation

Newton's Laws of Motion

Equations of Motion

Work, Power and Energy

Work

Power

Horse Power of Engines

Mechanical Efficiency

Energy

Algebra

Rules of Positive and Negative Signs

Laws of Indices

Addition and Subtraction of Algebraic Number

Multiplication and Division of Algebraic Numbers

Algebraic Formulas

Factors of Trinomial

Equations

Quadratic Equations

Mensuration

Circle

Perimeter and Area of Plane Figures

Volume

Area and Volume of Spherical Figures

Area of Solids of Revolution

Trigonometry

Relation between Sides of Triangle

Trigonometric Formulae

Relation between Trigonometric Ratios

Systems of Measuring Angles

Trigonometric Values of Some Angles

Heat and Temperature

Heat

Temperature

Boiling Point

Melting Point

Differences between Temperature and Heat

Sources of Heat

Effects of Heat

Specific Heat

Quantity of Heat

Thermal Capacity

Water Equivalent of Heat

Interchange of Heat

Calorimeter

Transmission of Heat

Thermometer

Pyrometer

Expansion of Solids

Electricity

Production of Electricity

Uses of Electricity

Types of Electrical Materials According to the Electricity Law

Electric Current

Types of Electric Current

Comparison between A.C. and D.C.

Ampere

Electromotive Force

Electric Voltage

Potential Difference (P.D.)

One Volt

Resistance

Specific Resistance

Temperature Coefficient

Electric Circuit

Series and Parallel Connections of Resistance

Electrical Power

Electrical energy

Simple Machines and Levers

Effort

Load

Mechanical Advantage

Velocity Ratio

Efficiency of Machine

Types of Simple Machines

Lever

Basic Geometrical Concepts

Geometrical Concepts

Pyhthagoras Theorem and its Applications

Force

Representation of Force

Parallel Forces

Resultant Force

Representation of Forces

Parallelogram Law of Forces

Triangle Law of Forces

Lami's Theorem

Resolution of Forces

Linear Motion

Circular Motion

Centrifugal Force

Centripetal Force

Angular Displacement

Angular Velocity

Angular Acceleration

Simple Stress and Strain

Strain

Stress

Hooke's Law

Ultimate Stress

Working Stress

Factor of Safety

Stress-Strain Curve

Modulus of Rigidity

Poisson's Ratio

Bulk Modulus

Relationship between the Three Moduli for a Given Material

Some Important Concepts

Tapers

Estimation of Material and Cost

Thermal Conductivity

Graph

Main Points to Draw a Graph

Solution by Graph

Equation with Two Variables

Equation with Two Constants

Pie and Bar Graph

Statistics

Collecting and Sorting Raw Data

Making Data Sensible

Descriptive Statistics - Pictographs

Statistical Inference

Representation of Frequency Distribution

Mean, Median and Mode

Sampling

Friction

Types of Friction

Normal Reaction

Limiting Friction

Laws of Friction

Coefficient of Friction

Angle of Friction

Inclined Plane

Force of Friction when the Applied Force is in Horizontal Direction

Force of Friction when the Force is Inclined at an Angle q with the Horizontal

Applications and Effects of Friction

Lubrication

Centre of Gravity

Gravitational Acceleration

Centre of Gravity

Centre of Gravity of Symmetric Body

Determination of Centre of Gravity for Non-symmetric Objects

Determination of Centre of Gravity through Calculation

Conditions of Equilibrium

Types of Equilibrium

Magnetism

Magnetism and Magnet

Types of Magnet

Classification of Magnetic Substances

Laws of Magnetism

Magnetic Field

Important Definitions Related to Magnetism

Determination of Direction of Magnetic Field of Current Carrying Conductor

Magnetic Effect of Current in Two Parallel Conductors

Solenoid

Electromagnet

Determination of Force in Current Carrying Conductor

Faraday’s Laws of Electromagnetic Induction

Methods of Magnetization

Applications of Electromagnet

Lifting Power of Magnet

Earthing

Important Definitions Related to Earthing

Different Methods of Earthing

Electrical Insulating Materials

Thermal Classification of Insulating Materials

Dielectric Strength of Insulators

Transmission of Mechanical Power

Power Transmission

Simple Belt Drive Power Transmission

Multi Belt Drive Power Transmission

Transmission through Gear Drive

Heat Treatment

Types of Steel Structures

Structure of Steel when Heated

Critical Temperature

Three Stages of Heat Treatment

Methods of Heat Treatment

Pressure

Units of Pressure

Atmospheric Pressure

Pressure on a Body Immersed in a Fluid

Types of Pressure

Device for Measuring Atmospheric Pressure

Boyle’s Law

Charles’s Law

Gas Equation

Pascal’s Law

Pneumatic Pressure

Pneumatic System

Hydraulic System

Mechanical Gauge