AFCAT & EKT 2021 Syllabus: The Air Force Common Admission Test is conducted twice in a year i.e. February & September. AFCAT 2021 is an Entrance Test conducted to the candidates who are wishing their career in Indian Air Force as a Commissioned Officers in Flying & Ground Duties (Technical & Non Technical Branches). AFCAT 2021 is a National Level Test. Aspirants who are meeting the Eligibility criteria can apply through online mode. AFCAT Syllabus 2021 is very useful to the candidates to get a good score in the Exam. Every Year large number of candidates have participated in AFCAT, Competition is very high for the AFCAT Exam candidates need to concentrate more on the Syllabus of AFCAT 2021.
Notification Details
 AFCAT Exam Pattern & Syllabus 2021
 Air Force Common Admission Test Syllabus 2021
 AFCAT 2021 Syllabus – Subject wise
 EKT Syllabus (for technical branches)
 Marking Scheme for EKT Exam 2021
 Computer Science Engineering
 Electrical & Electronics Engineering
 Mechanical Engineering
 Important Links
AFCAT Exam Pattern & Syllabus 2021
AFCAT 2021 Exam Pattern & Syllabus is available on its official website i.e. afcat.cdac.in. Indian Air Force invites applications from the aspirants through online mode. All the candidates after submission of their application are searching for the Syllabus of Air Force Common Admission Test 2021 to prepare themselves for the Exam. Here we provide a direct link to Download AFCAT Syllabus 2021 along with AFCAT Exam Pattern at the end of this page for the sake of candidates. No contender can get qualifying marks in the Exam without having Proper Knowledge of AFCAT Syllabus & Exam Pattern 2021.
Air Force Common Admission Test Syllabus 2021
Name of the Organisation  Indian Air Force 
Name of the Exam  Air Force Common Admission Test 
Category  Syllabus 
Exam Date  Available Soon 
Syllabus  Available Here 
Location  All Over India 
Official website  afcat.cdac.in 
AFCAT Exam Pattern 2021
 Each Correct Answer carries : 3 Marks
 Negative Marking: 1 Mark
 AFCAT Consists of 4 sections – Verbal Ability, Numerical Ability, General Awareness and Reasoning, and Military aptitude
 Mode of Exam – Online
Exam 
Questions  Marks 
Duration 
AFCAT 2021 
100  300 
120 minutes 
EKT (for Technical branch) 
50  150 
45 minutes 
AFCAT 2021 Syllabus – Subject wise
AFCAT Syllabus 2021 PDF – Verbal Ability
 Spelling Test.
 Sentence Arrangement.
 Error Correction (Underlined Part).
 Transformation
 Passage Completion.
 prepositions
 Sentence Improvement.
 Spotting Errors.
 Antonyms
 Homonyms,
 synonyms
 Word Formation
 Direct and Indirect speech
 Active and Passive Voice.
 Para Completion.
 Idioms and Phrases.
 substitution
 Joining Sentences.
 Theme Detection,
 Topic rearrangement of passage
 Error Correction (Phrase in Bold).
 Fill in the blanks.
 Data Interpretation.
 Spelling Test.
 Sentence Completion.
 Sentence Arrangement
AFCAT 2021 Syllabus PDF – Numerical Ability
 Time and Work
 Percentage
 Profit and Loss
 Discount
 Simple & Compound Interest
 Ratio and Proportion
 Time and Distance
 Partnership
 Average
 Mensuration
 Number System
 GCF & LCM
 Simplification
 Decimals & Fraction
 Square roots
 Use of Tables and Graphs
 Miscellaneous etc
 Data Sufficiency etc
Air Force CAT 2021 Syllabus – General Awareness
 Current affairs related to national and international issues of the last 6 months,
 Overview of Indian Financial System,
 History of the Indian banking system,
 Recent credit and monetary policies
 Indian History.
 Indian Culture.
 Sports.
 Zoology.
 Famous Days & Dates.
 Botany.
 Indian Politics.
 Physics.
 Indian Parliament.
 Basic GK.
 Chemistry.
 Geography.
 Environment.
 Indian Economy.
 Inventions in the World.
 Basic Computer.
 Famous Books & Authors.
AFCAT Exam Pattern 2021 PDF – Reasoning, and Military aptitude
 Puzzles.
 Data Sufficiency.
 NonVerbal Reasoning.
 Verbal Reasoning.
 Logical Reasoning.
 Data Interpretation.
 Analytical Reasoning.
 Number Series.
 Letter and Symbol Series.
 Verbal Classification.
 Essential Part.
 Analogies.
 Artificial Language.
 Matching Definitions.
 Making Judgments.
 Logical Problems.
 Statement and Conclusion
 Theme Detection.
 Cause and Effect.
 Statement and Argument.
 Logical Deduction.
Verbal Reasoning
 Analogy, Classification,
 Word formation,
 Statement and conclusions Syllogism,
 Statement and assumptions,
 Statement and arguments,
 CodingDecoding,
 Blood Relations,
 Passage and conclusions,
 Alphabet test,
 Series Test,
 Number,
 Ranking and time sequence,
 Direction Sense Test,
 Decisionmaking test,
 Figure series,
 Input/output,
 Assertion and reasoning,
 Sitting Arrangement
EKT Syllabus (for technical branches)
EKT( Engineering Knowledge Test) will be conducted in the following trades.
 Mechanical
 Electrical & Electronics
 Computer Science
Marking Scheme for EKT Exam 2021
The Online examination will consist of objectivetype questions and will be in English only for both AFCAT and EKT. The Marking Scheme for the EKT Exam is as follows:
 Three marks will be awarded for every correct answer.
 One mark will be deducted for every incorrect answer.
 No marks for unattempted questions.
Computer Science Engineering
Fundamental Engineering
1. Engineering Mathematics
 Matrix Algebra
 Eigenvalues and Eigenvectors
 Theorems of integral calculus
 Partial derivatives
 Maxima and minima
 Multiple integrals
 Stokes
 Gauss and Green’s theorems
 Firstorder differential equation (linear and nonlinear)
 Cauchy’s and Euler’s equations
 Complex variables
 Taylor’s and Laurent’ series
 Sampling theorems
 Mean, Median, Mode and Standard deviation
 Random variables
 Discrete and Continuous distributions
 Fourier transform, Laplace transform, Ztransform
2. Engineering Physics
 Units for measurement
 Description of Motion in One, Two and Three dimensions
 Laws of Motion
 Work, Energy and Power
 Rotational Motion
 Gravitation
 Heat and Thermodynamics
 Electrostatics
 Electric Current
 Magnetic Effect of Currents
 Magnetism
 Electromagnetic Induction and Alternating Currents and Electromagnetic Waves
 Ray Optics and Optical Instruments
3. Engineering Drawing
 Projection of straight line
 Planes and solids
 Intersection of surfaces
 Isometric Projection
 Sectional Views of solids
 Full section
 Introduction to ComputerAided Drafting

Specialisation Branch Topics
4. Analog & Digital Electronics
 Characteristics of diodes, BJT, FET, JFET and MOSFET
 Amplifiers – biasing, equivalent circuit and frequency response
 Oscillators and feedback amplifiers, Operational amplifiers – characteristics and applications
 Simple active filters
 VCOs and timers
 Combinational and sequential logic circuits
 Multiplexer
 Schmitt trigger
 Multivibrators
 Sample and hold circuits
 A/D and D/A converters
 8bit microprocessor basics
 Architecture, programming and interfacing
5. Electronic Device
 Energy bands in Silicon
 Intrinsic and extrinsic Silicon
 Carrier transport in silicon – diffusion current, drift current, mobility, and resistivity
 Generation and recombination of carriers
 PN junction diode, Zener diode, tunnel diode
 BJT, JFET, MOS capacitor
 MOSFET, LED, PIN and avalanche photodiode
 Basics of LASER
6. Computer Networks
 ISO/OSI stack,
 LAN technologies (Ethernet, Token ring)
 Flow and error control techniques
 Congestion control
 TCP/UDP and sockets
 IPv4
 Application layer protocols (icmp, dns, smtp, pop, ftp, HTTP)
 Basic concepts of hubs
 Switches, gateways, and routers
 Network security – basic concepts of public key and private key cryptography, digital signature, firewalls
 Basic concepts of clientserver computing
7. Network Theory Design
 Thevenin’s Norton’s, Reciprocity, Superposition, Compensation, Miller’s, Tellegen’s and Maximum power transfer theorems
 Impulse, step, ramp and sinusoidal response analysis of firstorder and secondorder circuits
 Twoport parameters and their interrelations
 Application of Laplace transform and Fourier series in the context of network analysis, Network synthesis
8. Switching Theory
 Traffic definitions
 Introduction to switching networks, classification of switching systems
 Grade of Service and blocking probability
 Basics of Circuit switching and packet switching
 Network traffic load and parameters
 Modelling of switching systems
 Incoming traffic and service time characterisation
 Blocking models and loss estimates
 Delay systems Markovian queuing model, M/M/1 model, Limited queue capacity, Multiple servers, Finite sources, Queue discipline
9. Information Technology
 Operating System – Processes, threads, interprocess communication, Concurrency, Synchronization, Deadlock, CPU scheduling, Memory management and virtual memory, File systems, I/O systems, Protection and security
 RDBMS – ERmodel, Relational model (relational algebra, tuple calculus), Database design (integrity constraints, normal forms), Query languages (SQL), File structures (sequential files, indexing, B and B+ trees), Transactions and concurrency control.
 Software engineering – Information gathering, requirement and feasibility analysis, data flow diagrams, process specifications, input/output design, process life cycle, planning and managing the project, design, coding, testing, implementation, maintenance. Programming in C, ObjectOriented Programming, basics of computer graphics
Allied Engineering
10. Electrical Engineering
 Singlephase transformer – equivalent circuit, phasor diagram, tests, regulation and efficiency,
 Autotransformer
 Energy conversion principles
 DC machines – types, windings, generator characteristics, armature reaction and commutation; Servo and stepper motors
 Synchronous machines,
 Generators –regulation and parallel operation
11. Control Engineering
 Application of openloop and closedloop systems
 Principles of feedback
 Determination of transfer function by block diagram reduction method
 Timedomain analysis of first and secondorder systems, transient and steadystate errors, damping and
oscillations
12. Telecommunication Systems
 Analog communication – amplitude and angle modulation and demodulation systems
 Superheterodyne receivers, signaltonoise ratio (SNR)
 Fundamentals of information theory and channel capacity theorem
 Digital communication systems – Pulse Code Modulation (PCM), Differential Pulse Code Modulation (DPCM)
 Digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), Basics of TDMA, FDMA and CDMA.
 Fundamentals of mobile communication. Fundamentals of optical fibre communication
13. Microwave Engineering
 Wave guides
 Klystrons
 Travelling Wave Tubes
 Magnetron
 Introduction to microstrip lines
 Microwave semiconductor devices
 Monolithic microwave integrated circuits
14. Antenna & Wave Propagation
 Antenna parameters
 Effective length and aperture, Gain, Beamwidth, Directivity, Radiation resistance, Efficiency, Polarization, Impedance and Directional characteristics of antenna, Reflection, refraction, interference and diffraction of radio waves.
 Fundamentals ground wave, space wave, sky wave and troposcatter propagation
15. Radar Theory
 Radar range equation
 Frequencies of operation
 Fundamentals of Moving Target Indicator (MTI), Pulse Doppler Radar, Tracking radar
16. Instrumentation
 Accuracy, precision and repeatability
 Electronic instruments for measuring basic parameters
 Theory of Oscilloscopes
 Signal generators, Signal analysers
 Characteristics and construction of transducers
Electrical & Electronics Engineering
Fundamental Engineering
1. Engineering Mathematics
 Matrix Algebra
 Eigenvalues and Eigenvectors
 Theorems of integral calculus
 Partial derivatives
 Maxima and minima
 Multiple integrals
 Stokes
 Gauss and Green’s theorems
 Firstorder differential equation (linear and nonlinear)
 Cauchy’s and Euler’s equations
 Complex variables
 Taylor’s and Laurent’ series
 Sampling theorems
 Mean, Median, Mode and Standard deviation
 Random variables
 Discrete and Continuous distributions
 Fourier transform, Laplace transform, Ztransform
2. Engineering Physics
 Units for measurement
 Description of Motion in One, Two and Three dimensions
 Laws of Motion
 Work, Energy and Power
 Rotational Motion
 Gravitation
 Heat and Thermodynamics
 Electrostatics
 Electric Current
 Magnetic Effect of Currents
 Magnetism
 Electromagnetic Induction and Alternating Currents and Electromagnetic Waves
 Ray Optics and Optical Instruments
3. Engineering Drawing
 Projection of straight line
 Planes and solids
 Intersection of surfaces
 Isometric Projection
 Sectional Views of solids
 Full section
 Introduction to ComputerAided Drafting

Specialisation Branch Topics
4. Analog & Digital Electronics
 Characteristics of diodes
 BJT, FET, JFET and MOSFET, Amplifiers – biasing, equivalent circuit and frequency response, Oscillators and feedback amplifiers
 Operational amplifiers – characteristics and applications
 Simple active filters, VCOs and timers
 Combinational and sequential logic circuits
 Multiplexer
 Schmitt trigger
 Multivibrators, Sample and hold circuits, A/D and D/A converters
 8bit microprocessor basics, architecture, programming and interfacing
5. Electrical Engineering
 Singlephase transformer – equivalent circuit, phasor diagram, tests, regulation and efficiency
 Three phase transformers – connections, parallel operation
 Autotransformer
 Energy conversion principles
 DC machines – types, windings, generator characteristics, armature reaction and commutation, starting and speed control of motors,
 Single phase and Threephase induction motors – principles, types, performance characteristics, starting
and speed control  Starting motors, Servo and stepper motors
 Synchronous machines Generators– performance, regulation and parallel operation
6. Electronics Devices
 Energy bands in Silicon, Intrinsic and extrinsic Silicon
 Carrier transport in Silicon – diffusion current, drift current, mobility, and resistivity
 Generation and recombination of carriers, pn junction diode, Zener diode, tunnel diode, BJT, JFET, MOS capacitor, MOSFET, LED, PIN and avalanche photodiode
 Basics of LASER. Device technology – integrated circuits fabrication process, oxidation, diffusion, ion implantation, photolithography, ntub, ptub and twintub CMOS process
7. Control Engineering
 Application of openloop and closedloop systems
 Principles of feedback
 Determination of transfer function by block diagram reduction method
 Timedomain analysis of first and secondorder systems, transient and steadystate errors, damping and
oscillations  Routh and Nyquist techniques
 Bode plots, Root loci, Lag, lead and leadlag compensation,
 Statespace model, State transition matrix, Controllability and observability
8. Telecommunication Systems
 Random signals and noise – probability, random variables, probability density function, autocorrelation, power spectral density
 Analog communication – amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers, elements of hardware, realisations of analogue communication systems, signaltonoise ratio (SNR) calculations for AM and FM
 Fundamentals of information theory and channel capacity theorem. Digital communication systems – Pulse Code Modulation (PCM)
 Differential Pulse Code Modulation (DPCM)
 Digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, Bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA
 Fundamentals of mobile communication. Fundamentals of optical fibre communication.
9. Microwave Engineering
 Waveguides
 Waveguide component
 Klystrons
 Travelling Wave Tubes
 Magnetron
 Microwave measurements
 Introduction to microstrip lines
 Microwave network analysis
 Microwave semiconductor devices
 Monolithic microwave integrated circuits
10. Antenna & Wave Propagation
 Antenna parameters
 Radiation from a current element in free space
 Reciprocity theorem
 Resonant and nonresonant antenna
 Effective length and aperture, gain, beamwidth, directivity, radiation resistance, efficiency, polarization, impedance and directional characteristics of the antenna, antenna temperature
 Phased array antenna, Mechanism of radio wave propagation, Reflection, refraction, interference and diffraction of radio waves
 Theory of ground wave, space wave, sky wave and troposcatter propagation
Allied Engineering Topics
11. Instrumentation
 Accuracy, precision and repeatability
 Electronic instruments for measuring basic parameters
 Theory of Oscilloscopes
 Signal generators, Signal analysers
 Characteristics and construction of transducers
12. Computer Networks
 ISO/OSI stack
 LAN technologies (Ethernet, Token ring)
 Flow and error control techniques
 Congestion control
 TCP/UDP and sockets
 IPv4
 Application layer protocols (icmp, dns, smtp, pop, ftp, HTTP)
 Basic concepts of hubs, switches, gateways, and routers
13. Network Theory Designs
 Thevenin’s, Norton’s, Reciprocity, Superposition, Compensation, Miller’s, Tellegen’s and Maximum power transfer theorems.
 Impulse, step, ramp and sinusoidal response analysis of firstorder and secondorder circuits.
 Twoport parameters and their interrelations
 Application of Laplace transform and Fourier series in the context of network analysis
 Network synthesis
14. Switching Theories
 Traffic definitions
 Introduction to switching networks
 Classification of switching systems
 Grade of Service
 Basics of Circuit switching and packet switching
15. Information Technology
 Fundamentals of the operating system
 RDBMS terminologies
 ObjectOriented Programming
 Basics of computer graphics
16. Radar Theory
 Radar range equation
 Frequencies of operation
 Fundamentals of Moving Target Indicator (MTI)
 PulseDoppler Radar
 Tracking radar
Mechanical Engineering
Fundamental Engineering
1. Engineering Mathematics
 Matrix Algebra
 Eigenvalues and Eigenvectors
 Theorems of integral calculus
 Partial derivatives
 Maxima and minima
 Multiple integrals
 Stokes
 Gauss and Green’s theorems
 Firstorder differential equation (linear and nonlinear)
 Cauchy’s and Euler’s equations
 Complex variables
 Taylor’s and Laurent’ series
 Sampling theorems
 Mean, Median, Mode and Standard deviation
 Random variables
 Discrete and Continuous distributions
 Fourier transform, Laplace transform, Ztransform
2. Engineering Physics
 Units for measurement
 Description of Motion in One, Two and Three dimensions
 Laws of Motion
 Work, Energy and Power
 Rotational Motion
 Gravitation
 Heat and Thermodynamics
 Electrostatics
 Electric Current
 Magnetic Effect of Currents
 Magnetism
 Electromagnetic Induction and Alternating Currents and Electromagnetic Waves
 Ray Optics and Optical Instruments
3. Engineering Drawing
 Principles of orthographic projections
 Projections of points, lines, planes and solids
 Section of solids
 Isometric views
 AutoCAD

Specialisation Branch Topics
4. Engineering Mechanics
 Equations of equilibrium in space and its application; first and second moments of area; simple problems on friction
 Kinematics of particles for plane motion; elementary particle dynamics
 Generalized Hooke’s law and its application
 Design problems on axial stress, shear stress and bearing stress
 Material properties for dynamic loading; bending shear and stresses in beams
 Determination of principle stresses and strains – analytical and graphical
 Material behaviour and design factors for dynamic load
 Design of circular shafts for bending and torsional load only
 Deflection of beam for statically determinate problems; theories of failure
5. Thermodynamics
 Basic concept of First –law and second law of Thermodynamics
 Concept of entropy and reversibility
 Availability and unavailability and irreversibility
 Classification and properties of fluids
 Incompressible and compressible fluids flow
 Effect of Mach number and compressibility; continuity momentum and energy equations
 Normal and oblique shocks
 One dimensional isentropic flow, flow or fluids in duct with frictions that transfer.
 Flowthrough fans, blowers and compressors; axial and centrifugal flow configuration; design of fans and compressors
6. Theories of Machines
 Kinematic and dynamic analysis of plane mechanisms
 Cams, Gears and epicyclic gear trains, flywheels, governors, balancing of rigid rotors, balancing of single and multicylinder engines, linear vibration analysis of mechanical systems (single degree of freedom)
 Critical speeds and whirling of shafts.
 Flywheels, balancing of rotors and reciprocating machinery, balancing machines, governors, free and forced vibration of damped and undamped single degree of freedom systems, isolation, whirling of shafts, gyroscope
7. Fluid Mechanics/Hydraulic Machines
 Fluid flow concepts
 Transport theorem
 Fluid kinematics
 Potential flow
 Governing equations of Fluid flow
 Dimensional Analysis
 Viscous flow
 BoundaryLayer flows
 Turbulence
 Closed conduit flows
 Hydrodynamic lubrication
 Free surface flow
 Compressible flows,
 Hydraulic Turbines Impulse and Reaction Turbines
 Centrifugal and Axial flow pumps
8. Manufacturing Science
 Foundry Technology
 Melting furnaces
 Special casting processes
 Gating and riser design
 Casting defects
 Arc welding, TIG, MIG, submerged arc, Resistance welding, Gas welding, Flash butt welding, Solidstate welding
 Welding metallurgy
 Forming Technology
 Powder metallurgy
9. Material Science
 Basic concepts on structure of solids
 Common ferrous and nonferrous materials and their applications
 Heattreatment of steels
 Nonmetals plastics, ceramics, composite materials and nanomaterials
10. Machine Drawing
 Development and Intersection of surfaces
 Conventional representation of machine elements, materials, surface finish and tolerances
 Sectional views and additional views
 Drawing of Screw threads, locking devices, Fasteners, Keys and Cotters, Knuckle joints, Riveted Joints, Shaft Couplings and Bearings
 Pipe Joints, Assembly and production drawings
Allied Engineering
11. Automotive Engineering
 Introduction
 Power plant, fuel system, electrical system and other electrical fittings
 Lubricating system and cooling systems
 Chassis and transmission, axles, clutches, propeller shafts and differential
 Condition for correct steering, steering gear mechanisms, automotive air conditioning
 Tyres, the effect of working parameters on knocking, reduction of knocking
 Forms of the combustion chamber for SI and CI engines; rating of fuels, additives; emission.
12. Power Plant Engineering
 Steam power plant
 Steam boilers
 Steam condensers
 Cooling towers, cogeneration and combined cycles
 Nuclear power plants, hydroelectric power plants, power plant economics
13. Industrial Engineering
 System design
 Factory location simple OR models
 Plant layout methods based
 Applications of engineering economic analysis and breakeven analysis for product selection, process selection and capacity planning; predetermined time standard
 System planning
 Forecasting methods based on regression and decomposition, design and balancing of multimodel and stochastic assembly lines
 Inventory management – probabilistic inventory models for order time and order quantity determination
 JIT systems; strategic sourcing; managing inter plant logistics.
14. Flight Mechanics
 Atmosphere: Properties, standard atmosphere
 Classification of aircraft
 Airplane (fixedwing aircraft) configuration and various parts.
 Airplane performance: Pressure altitude; equivalent, calibrated, indicated airspeeds
 Primary flight instruments: Altimeter, ASI, VSI, Turnbank indicator
 Drag polar; takeoff and landing; steady climb & descent,absolute and service ceiling; cruise, cruise climb, endurance or loiter; load factor, turning flight, Vn diagram
 Winds: head, tail & crosswinds
 Static stability: Angle of attack, sideslip; roll, pitch & yaw controls;
 Longitudinal stick fixed & free stability, horizontal tail position and size; directional stability
15. Aircraft Structures
 Stress and Strain: Equations of equilibrium, constitutive law, strain displacement relationship, compatibility equations, plane stress and strain, Airy’s stress function.
 Flight Vehicle Structures: Characteristics of aircraft structures and materials, torsion, bending and flexural shear
 Flexural shear flow in thinwalled sections
 Buckling
 Failure theories
 Loads on aircraft
 Structural Dynamics: Free and forced vibration of discrete systems
 Damping and resonance
 Dynamics of continuous systems
16. Aerodynamics
 Basic Fluid Mechanics: Incompressible irrotational flow, Helmholtz and Kelvin theorem, singularities and superposition, viscous flows, boundary layer on a flat plate
 Airfoils and wings: Classification of airfoils, aerodynamic characteristics, high lift devices, Kutta Joukowski theorem; lift generation; thin airfoil theory; wing theory; induced drag; qualitative treatment of low aspect ratio wings.
 Viscous Flows Flow separation, introduction to turbulence, transition, the structure of a turbulent boundary layer
 Compressible Flows: Dynamics and Thermodynamics of ID flow, isentropic flow, normal shock, oblique shock.
Important Links
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Download AFCAT Syllabus & Exam Pattern 2021 PDF  Click here 
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