HOW TO PREPARE & CRACK AFCAT 2015 EXAM:TIPS TRICKS STRATEGIES PREPARATION STUDY PLAN STUDY MATERIAL BOOKS PAPER PATTERN SYLLABUS QUESTION PAPERS COACHING FOR AFCAT 2015 EXAM

Selection Process

Candidates applied for AFCAT will have to go through the selection procedure as follows:
For Technical Branch: Candidates will be called for Air Force Common Admission Test (AFCAT) and Engineering Knowledge Test (EKT). The AFCAT will be of two hours duration and will contain multiple choice questions on verbal ability, numerical ability, reasoning, general awareness and military aptitude. Selected candidates will have to under go further testing of two stages.
Stage-I: consists of Intelligence Test along with other tests, document check.
Stage-II: consists of Psychological test, Group Tests and Interview.
For Flying Branch: Candidates have to go through Air Force Common Admission Test (AFCAT) and Engineering Knowledge Test (EKT). The AFCAT will be of two hours duration and will contain multiple choice questions on verbal ability, numerical ability, reasoning, general awareness and military aptitude. Intelligence Test, Psychological test along with other tests, document check, Group Tests interview & CPSS (Computerised Pilot Selection System) and or PABT would be administered to eligible candidates.
For Ground Duty Branch: Candidates have to go through Air Force Common Admission Test (AFCAT) and Engineering Knowledge Test (EKT). The AFCAT will be of two hours duration and will contain multiple choice questions on verbal ability, numerical ability, reasoning, general awareness and military aptitude. Intelligence Test, Psychological test along with other tests, document check, Group Tests, interview.

 PAPER PATTERN
The AFCAT will be of two hours duration and will contain multiple choice questions on verbal ability, numerical ability, reasoning general awareness and military aptitude
EKT would be for 45 minutes and conducted immediately after AFCAT

AFCAT written exam consists of General Knowledge, Math, English and Reasoning. Maximum marks will be 300. Total 100 questions will be asked and time allowed for the exam is 2 hours. Every question carry 3 marks and there is 1/3 negative marking. For every wrong answer given by the aspirant, 1 mark will be deducted as panelty. No marks will be deducted if the question is left unanswered.
Those candidates who apply for technnical branch, will have to attend EKT exam which is conducted just after AFCAT.
It is mandatory for candidates applying for technical branch. It consist of 50 questions with one mark for every correct answer.

AFCAT 2015 paper has of four sections:
  1. General Awareness
  2. Verbal Ability
  3. Numerical Ability
  4. Reasoning & Military Aptitude Test
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Following is the syllabus for AFCAT 2015 Syllabus:- 

General Awareness:
  • History
  • Sports
  • Geography
  • Environment
  • Civics
  • Basic Science
  • Defence
  • Art
  • Culture
  • Current Affairs
  • Politics 
Verbal Ability in English:
  • Comprehension
  • Error Detection
  • Sentence Completion
  • Synonyms
  • Antonyms 
  • Testing of Vocabulary
Numerical Ability:
  • Decimal Fraction, 
  • Simplification
  • Average
  • Profit & loss
  • Percentage
  • Ratio & Proportion
  • Simple interest
Reasoning and Military Aptitude Test:
  • Verbal Skills
  • Spatial Ability
- See more at: http://www.eduvidya.com/Entrance-Exam/AFCAT#sthash.yJNLH0cD.dpuf
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :

Buy AFCAT EXAM GUIDE

Buy AFCAT Air Force Common Admission Test Practice Work Book

Buy AFCAT  PRACTICE

Buy The New AFCAT Guide : 6 Past Papers








AFCAT Syllabus 2015


  1. General Awareness: History, Sports, Geography, Environment, Culture, Current Affairs, Politics , Civics, Basic Sciences, Defence, Art etc.
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :

Buy Encyclopaedia Of General Knowledge

Buy Lucent GK

Buy General Knowledge 2015 

  1. Verbal Ability in English: Comprehension, Error Detection, Synonyms, Antonyms, and Testing of Vocabulary, Sentence Completion etc.
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :

Buy Objective English

Buy Objective English for Competitive Examinations


Buy OBJECTIVE GENERAL ENGLISH


  1. Numerical Ability: Decimal Fraction, Simplification, Average, Percentage, Ratio & Proportion, and Simple Interest, Profit & Loss
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :









  1. Reasoning and Military Aptitude Test section: Verbal Skills and Spatial Ability.

Engineering Knowledge Test (EKT)

Engineering Knowledge Test (EKT) is a test for the engineering graduates those who apply for the Technical Branches in the Indian Air Force (IAF). Engineering Knowledge Test is a test carried out by Indian Air Force, along with the AFCAT exam to test the basic knowledge of engineering graduates applying for Technical Entries through AFCAT.
EKT Paper Pattern
EKT exam paper is divided into two Parts with objective type Multiple Choice Questions (MCQs).
  • Part A: General Engineering
  • Part B: Specialist Paper for each engineering field
EKT Syllabus
EKT exam comprises of following fields or subjects
General Engineering
  • Modern Physics
  • Chemistry
  • Mathematics
  • Computers
  • Electrical
  • Electronics
  • Mechanical Engineering
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS 

Computer and Electronics
  • Digital Electronic Circuits
  • Analog Electronic Circuits
  • Computer Organization and Architecture
  • Operating System
  • Programming and Data Structures
  • Databases
  • Computer Networks
  • Information Systems and Software Engineering
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :
  • Strength of Materials
  • Theory of Machines
  • Vibrations
  • Fluid Mechanics
  • Heat Transfer
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :

Buy Engineering Mechanics Statics and Dynamics

Buy Strength Of Materials

Buy Theory of Machines

Buy Mechanical Vibrations

Buy Hydraulics and Fluid Mechanics Including Hydraulics Machines

Buy Heat and Mass Transfer


Electronics and Communication Engineering
  • Networks
  • Electronic Devices
  • Analog Circuits
  • Digital circuits
  • Signals and Systems
  • Control Systems
  • Communications
  • Electromagnetics
THE NAME OF SOME IMPORTANT BOOKS ARE AS FOLLOWS :

Buy NETWORK ANALYSIS

Buy Electronic Devices And Circuits Theory

Buy Analog Circuits


Buy Fundamentals of Digital Circuits

Buy SIGNALS

Buy Control Systems Engineering

Buy Engineering Electromagnetics

Pattern of Questions:

For Verbal Section:
1. Read the passage carefully and answer the questions given below it.
2. In each of the following questions, find out which part of the sentence has an error. If there is no mistake, the answer is (d) “No error”.
i) He charged me (a) / one hundred rupees for five dozens (b)/ oranges of average quality (c)/ No Error (d).
ii)Raju and his friend (a) / were going to see a picture (b)/ when they met his common friend (c)/ No error (d).

For General Awareness:
1. Name the first person who went in the space.
a) Yuri Gagarin                              b) Neil Armstrong
c) Rakesh Sharma                              d)John Glann
2. The first Indian woman who won a medal in Olympic.
a) PT Usha                                           b) Shiny Abraham
c) Dala Banerjee                                  d)Karram Malleswari


For Numerical Ability:
1. When simplified (2.43 *2.43+2.43*7.57*2+7.57*7.57) is equal to –
a) 10                        b) 100                    c) 101.89                d) 200.59
2. Three years ago the average age of A & B was 18 years. With C Joining them now, the average age becomes 22 years. How old is she?
a) 24 years               b) 27 years                      c) 28 years              d) 30 years


For Reasoning Ability:
Analogy
In the following questions there is a pair of capitalized words followed by four choices marked A, B, C, D. Chose the pair of words whose relationship is most similar to that expressed by the capitalized pair, and mark your choice on the answer sheet.
1. COLD: HOT
a) handsome: young                         b) beautiful: ugly
c) summer: spring                             e) complete: total


TECHNICAL BRANCH

Part A: General Engineering

1. The probability of hitting a target from one gun 9/10, from another gun is 7/10. If both gun are fired at the same time, the probability of hitting the target is
(A) 2/20 (B) 63/100
(C) 16/20 (D) 63/20
2. If the three vectors a, b and c are coplanar , then the missed product a x b. c is
(A) Zero (B) Non-Zero
(C) Unity (D) Non of these
6. When a body hits an obstacle, the force with which it hits the obstacle depends upon its
(A) average velocity
(B) velocity at the instant of collision
(C) initial velocity
(D) all of these
7. The wavelength of visible light is of the order of
(A) 1μm (B) 100 μm
(C) 1mm (D) 1 Å
8. Whenever a source of sound moves towards an observer
(A) the frequency heard by the observer is less than that of the source
(B) the frequency heard by the observer is greater than that of the source
(C) the frequency heard by the observer is unchanged
(D) the wavelength of sound heard is greater than that of the sound emitted
9. Moving electric charges will interact with
(A) electric field only
(B) magnetic field only
(C) both of these
(D) none of these
10. Gamma radiation is most similar to
(A) sound waves (B) X-ray
(C) Alpha particles (D) neutrons
11. The fundamental particle responsible for keeping the nucleus together is
(A) meson (B) anti proton
(C) positron (D) muon
12. Air contains 21% oxygen by volume and the rest nitrogen. If the barometer pressure is 740 mm of Hg the partial pressure of oxygen is close to
(A) 155 mm of Hg
(B) 310 mm of Hg
(C) 465 mm of Hg
(D) 162 mm of Hg
13. In the electrolytic cell
(A) electrical energy is converted into chemical energy
(B) chemical energy is converted into electrical energy
(C) mechanical energy is converted into potential energy
(D) potential energy is converted into kinetic energy
14. The force required to maintain a body at constant speed in free space is equal to
(A) the mass of the body
(B) zero
(C) the weight of the body
(D) the force required to stop it
15. If the length of a spring is halved, the spring constant becomes
(A) half (B) 1/4th
(C) double (D) four times
16. The coefficient of static friction depends on
(A) the material of the bodies in contact
(B) the quality of surface finish of the bodies
(C) the presence of foreign matter between the surface
(D) all of these
17. The units of angular impulse in SI system are
(A) Nms (B) Ns
(C) Nm/s (D) Ns/m
19. Stainless steel contains iron and
(A) Chromium and nickel
(B) Chromium and carbon
(C) Nickel and carbon
(D) Chromium and manganese
20. The property of material by which it offers resistance to scratching or indentation is called
(A) Brittleness
(B) Hardness
(C) Toughness
(D) Resilience
21. The failure of a material due to repeated stressing is known as
(A) Creep
(B) Fracture
(C) Fatigue
(D) Brittle Fracture
22. The electric device which blocks DC but allows AC is called
(A) Capacitor
(B) Inductor
(C) Amplifier
(D) Transducer
23. When a charge is moved from one point to another in an electric field, the work done is
(A) independent of the path
(B) zero along the direction of the field
(C) measured in Joules per metre
(D) measure in Volt per metre
24. A capacitor with lowest leakage is
(A) Paper (B) Ceramic
(C) Polyester (D) Mica
25. A zener diode operates
(A) In an extremely high forward bias
(B) In an extremely low reverse bias
(C) In an extremely low forward bias
(D) In a reverse bias higher than laid down voltage
26. The specific gravity of a lead acid cell is often used as a measure of its
(A) Rate of discharge
(B) Operating temperature
(C) State of charge
(D) Life expectancy
27. An uniformly distributed load is one which
(A) Acts at a point on a beam
(B) Spreads uniformly over the whole length of a beam
(C) Varies uniformly over the whole length of a beam
(D) loads the beam from one end only
28. A steam engine device which keeps the speed of the engine, all loads, constant is known as
(A) Flywheel
(B) Eccentric
(C) Connecting rod
(D) Governor
29. The refrigerant hiving the lowest freezing point is
(A) Ammonia
(B) Carbon dioxide
(C) Freon – 11
(D) Freon – 22
30. Heat and work are
(A) Path functions
(B) Properties of a substance
(C) Point functions
(D) Absolute units

PART B-1 AE (M): MECHANICAL ENGINEERING

1. An impulse turbine
(A) Makes use of a draft tube
(B) Always operates submerged
(C) Converts the pressure head into velocity head through the vanes
(D) Is most suited for low head installations
2. Power required to drive a centrifugal pump is directly proportional to
(A) Diameter of its impeller
(B) Square of diameter of its impeller
(C) Cube of diameter of its impeller
(D) Fourth power of diameter of its impeller
3. The locus of the common point on the two meshing spur gears is known as
(A) Addendum circle
(B) Duodenum circle
(C) Pitch circle
(D) Base circle
4. When there is a reduction in amplitude over every cycle of vibration then the body is said to have
(A) Free vibration
(B) Forced vibration
(C) Damped vibration
(D) Natural vibration
5. For machining at high speed the tool material should have
(A) Wear resistance
(B) Red hardness
(C) Toughness
(D) All of these
6. MIG welding is
(A) A gas welding process
(B) An electric resistance welding process
(C) A electric resistance welding process
(D) A forge welding process involving high temperatures and low pressures
7. The ability of sand to permit the metal to shrink when it solidifies is known is
(A) Plasticity (B) Permeability
(C) Collapsibility (D) Cohesiveness
8. Rivets are generally specified by
(A) Overall length
(B) Shank diameter
(C) Thickness of plates to be jointed
(D) Diameter of head
9. Which of the following is steady flow compressor
(A) Reciprocating compressor
(B) Centrifugal compressor
(C) Voot blower
(D) Vane blower
10. A closed cycle gas turbine works on
(A) Carnot cycle (B) Rankine cycle
(C) Brayton cycle (D) Joule cycle
11. Thermal conductivity of solid metals
(A) Decreases with rise in temperature
(B) Does not vary with temperature
(C) Increases with rise in temperature
(D) Remains constant with rise in temperature
12. During adiabatic saturation process, air property which remains constant, is known as
(A) Wet bulb temperature
(B) Dry bulb temperature
(C) Relative humidity
(D) Specific humidity
13. Bell-Coleman cycle as applied to refrigeration operates
(A) On open air system
(B) On vapour compression system
(C) On vapour absorption system
(D) On none of these
14. The gears in which axes of the shaft connected by them, intersect, are known as
(A) Spur gears (B) Bevel gears
(C) Spiral gears (D) Gear train
15. Shot peening
(A) Is done at re-crystallization temperature
(B) Changes the crystalline structure at materials
(C) Improves the fatigue life of small parts
(D) Refines the grain structure
16. In a bomb calorimeter the heat released by the fuel is absorbed by
(A) Atmospheric air
(B) Water
(C) Metal container
(D) Bomb, water and metal container
17. Nitriding is done
(A) On low carbon steels only
(B) To impart blue colour to steels
(C) To improve machinability
(D) To increase surface hardness
18. The extent of cold work that a metal can withstand depends on
(A) Purity of metal
(B) Carbon percentage
(C) Ductility
(D) Room temperature
19. Which engine has the highest air fuel ratio
(A) Petrol engine (B) Gas engine
(C) Diesel engine (D) Gas turbine
20. Annealing of steels is done to
(A) Remove internal stresses
(B) Produce soft core under hard surface
(C) Produce hard core under soft surface
(D) Introduce capacity to withstand shocks

PART B-2 AE (M): AERONAUTICAL ENGINEERING

1. What mass of lead (sp gr = 11) will weigh as much as 8 gram of iron (Sp gr = 8) when both are immersed in water
(A) 7.7 gram (B) 8.8 gram
(C) 10.0 gram (D) 1.1 gram
2. Which of the two forces are important in floating bodies
(A) inertial, pressure
(B) buoyancy, gravity
(C) gravity, inertial
(D) pressure, viscous
3. A dimensionless number which is a ratio of kinematics viscosity to thermal diffusivity is known as
(A) Prandtl Number
(B) Nusselt Number
(C) Reynold’s Number
(D) Stanton Number
4. Ozone is an
(A) isomer of oxygen
(B) allotrope of oxygen
(C) isobar of oxygen
(D) isotope of oxygen
5. Within a carburetor the velocity of air is maximum at
(A) inlet
(B) outlet
(C) venture
(D) does not change within a carburetor
6. A 50 Kg mass is accelerated from rest to 50 m/s. The force on it is
(A) 500 N
(B) 2,500 N
(C) 512 N
(D) Can not be determined from the given data
7. In vacuum the velocity of light depends on
(A) none of the following
(B) frequency
(C) temperature
(D) pressure
8. The source of solar energy is
(A) nuclear fission / fusion
(B) electromagnetic radiation
(C) chemical energy
(D) burning of hydrogen
9. The pressure of a real gas is less than the pressure of an ideal gas because of
(A) increase in the number of intermolecular collisions
(B) higher energy possessed by the molecules than the theoretical estimates
(C) inter-molecular forces
(D) finite size of molecules
10. Which of the following is dimensionless
(A) young’s modulus of elasticity
(B) stress (C) strain
(D) shear stress
11. Which of the following relations is incorrect One atmospheric pressure is nearly equal to
(A) 1013 bar
(B) 1013250 dynes/cm2
(C) 1.033kgf/cm2
(D) 735 mm of Hg
12. Which of the following is a scalar quantity
(A) velocity of a gear
(B) acceleration of a car
(C) force in friction
(D) area of a triangle
13. The Mach number at inlet of a gas turbine diffuser is 0.3. The shape of the diffuser would be
(A) converging (B) diverging
(C) diverging – converging
(D) converging – diverging
14. For adiabatic expansion with friction through a nozzle, the following remains constant
(A) entropy (B) static enthalpy
(C) stagnation enthalpy
(D) stagnation pressure
15. Separation of flow is caused by
(A) reduction of pressure in the direction flow
(B) decrease in the boundary layer thickness
(C) increase of pressure in the direction of flow
(D) adverse pressure gradient
16. A pilot tube senses
(A) stagnation pressure
(B) average pressure
(C) maximum pressure
(D) velocity head pressure
17. Which of the following materials has the higher value of Poisson’ ratio
(A) rubber (B) copper
(C) steel (D) concrete
18. During forced vertex flow
(A) velocity increases with radius
(B) velocity decreases with radius
(C) fluid rotates as a composite solid
(D) inertial forces are significant
19. Hooke’s law is valid within the limits of proportionality. The limit of proportionality depends on
(A) type of loading
(B) area of cross section
(C) type of material
(D) hardness of material
20. Euler’s equation of fluid motion can be integrated when it is assumed that
(A) the fluid is incompressible
(B) Bernoulli’s equation is satisfied
(C) flow is rotational
(D) velocity potential exits and the density is constant

PART B-3 AE (L): ELECTRICAL, ELECTRONICS AND INSTRUMENTATION

1. In order for a 30 volt, 90 watt lamp to work properly in a 120 volt supply the required series resister in ohm is
(A) 10 (B) 20
(C) 30 (D) 40
2. According to Theremin’s theorem, any linear active network can be replaced by a single voltage source
(A) in series with a single impedance
(B) in parallel with a single impedance
(C) in series with two impedances
(D) in parallel with two impedances
3. The internal resistance of ammeter is
(A) very small (B) very high
(C) infinite (D) zero
4. Hay bridge is used mainly for the measurement of
(A) resistance (B) inductance
(C) conductance (D) capacitance
5. Which of the following is true about series resonance
(A) The reactance becomes zero and impedance becomes equal to resistance
(B) The current in the circuit becomes maximum
(C) The voltage drop across inductance and capacitance cancels each other
(D) All of the above statements are correct
6. A 3-Ф, 4 wire, 400/230 v feeder supplies 3-phase motor and an unbalanced lighting load. In this system
(A) all four wires will carry equal current
(B) neutral wire will carry no current
(C) neutral wire will carry both motor current and lighting load current
(D) neutral wire will carry current only when lighting load is switched on
7. Equalizing connections are required when paralleling two
(A) alternators
(B) compound generators
(C) series generators
(D) both (B) and (C)
8. An ideal transformer is one which
(A) has a common core for its primary and secondary windings
(B) has no losses and magnetic leakage
(C) has core of stainless steel and windings of pure copper metal
(D) has interleaved primary and secondary windings
9. The principle of operation of a 3-phase induction motor is most similar to that of a
(A) synchronous motor
(B) repulsion-start induction motor
(C) transformer with a shorted secondary
(D) capacitor-start, induction-run motor
10. In the forward region of its characteristic, a diode appears as
(A) an OFF switch
(B) a high resistance
(C) a capacitor
(D) an ON switch
11. The common-emitter forward amplification factor βdc is given by
(A) IC/IE (B) IC/Ib
(C) IE/IC (D) IB/IF
12. A common emitter amplifier is characterized by
(A) low voltage gain
(B) moderate power gain
(C) signal phase reversal
(D) very high output impedance
13. After VDS reaches pinch-off value VP in a JFET, drain current IO becomes
(A) zero (B) low
(C) saturated (D) reversed
14. An electronic oscillator
(A) needs an external input
(B) provides its own input
(C) is nothing but an amplifier
(D) is just a dc/ac converter
15. In an SCR, the function of the gate is to
(A) switch it off
(B) control its firing
(C) make it unidirectional
(D) reduce forward breakdown voltage
16. NAND and NOR gates are called ‘universal’ gates primarily because they
(A) are available everywhere
(B) are widely used in IC packages
(C) can be combined to produce AND, OR and NOT gates
(D) are the easiest to manufacture
17. Registers and counters are similar in the sense that they both
(A) count pulses
(B) store binary information
(C) are made from an array of flip-flops and gates integrated on a single chip
(D) are in fact shift register
18. A flip-flop
(A) is a sequential logic device
(B) is a combinational logic device
(C) remembers what was previously stored in it
(D) both (A) and (C)
19. An operational amplifier
(A) can be used to sum two or more signals
(B) can be used to subtract two or more signals
(C) uses to principle of feed back
(D) all of the above
20. TTL logic is preferred to DRL logic because
(A) greater fan-out is possible
(B) greater logic levels are possible
(C) greater fan-in is possible
(D) less power consumption is possible

PART B-4 AE (L): ELECTRONICS AND COMMUNICATIONS

1. In a communication system, noise is most likely to get into the system
(A) at the transmitter
(B) in the channel
(C) in the information source
(D) at the destination
2. When modulation frequency is doubled, the modulation index is halved, and the modulating voltage remains constant, the modulation system is
(A) amplitude modulation
(B) phase modulation
(C) frequency modulation
(D) angle modulation
3. Impedance inversion may be obtained with
(A) a short – circuited stub
(B) an open – circuited stub
(C) a quarter – wave line
(D) a half – wave line
4. HIGH frequency waves are
(A) observed by the F2 layer
(B) reflected by D layer
(C) capable of use for long-distance communication on the moon
(D) affected by the solar cycle
5. Which one of the following terms does not apply to the Yagi-uda array
(A) Good band width
(B) Parasitic elements
(C) Folded diploe
(D) High gain
6. A duplexer is used
(A) to couple two different antennae to a transmitter without mutual interference
(B) to allow one antenna to be used for reception or transmission without mutual interference
(C) to prevent interference between two antennae when they are connected to receiver
(D) to increase the speed of the pulses in pulsed radar
7. Indicate which of the following system is digital
(A) Pulse – Position modulation
(B) Pulse – Code modulation
(C) Pulse – Width modulation
(D) Pulse – Frequency modulation
8. A forward error correcting code corrects errors only
(A) requiring partial retransmission of the signal
(B) requiring retransmission of entire signal
(C) using parity to correct to errors in all cases
(D) requiring no part of the signal to be transmitted
9. A typical signal strength received from a geosynchronous communication satellite is of the order of
(A) a few milli watts
(B) kilo watts
(C) watts
(D) few pico watts
10. Telephone traffic is measured
(A) with echo cancellers
(B) by the relative congestion
(C) in terms of the grade of service
(D) in erlangs
11. Positive logic in a logic circuit is one in which
(A) logic 0 and 1 are represented by 0 and positive voltage respectively
(B) logic 0 and 1 are represented by negative and positive voltages respectively
(C) logic 0 voltage level in higher than logic 1 voltage level
(D) logic 0 voltage level is lower than logic 1 voltage level
12. A half-adder can be made from
(A) two NAND gates
(B) a NOT gate and an OR gate
(C) an AND gate and an OR gate
(D) an AND gate and an X-OR gate
13. Which of the following devices has its characteristics very close to that of an ideal current source.
(A) Field effect transistor
(B) Transistor in common bas mode
(C) Zener diode
(D) MOSFET
14. The main use of a common base transistor amplifier is
(A) as voltage amplifier
(B) current amplifier
(C) for matching a high source impedance to a low load impedance
(D) for rectification of a.c. signal
15. A class-B amplifier is biased
(A) Just at cut-off
(B) nearly twice cut-off
(C) at mid point of load line
(D) so that IB equals jut IC
16. If the peak transmitted power in a radar system is increased by a factor of 16, the maximum range will be increased by a factor of
(A) 2 (B) 4 (C) 8 (D) 16
17. A high PRF will (indicate the false statement)
(A) make the returned echoes easier to distinguish from noise
(B) make target tracking easier with conical scanning
(C) increase the maximum range
(D) have no effect of the range resolution
18. A solution to the “blind speed” problem in a radar system is to
(A) change the Doppler frequency
(B) vary the PRF
(C) use mono pulse
(D) use MTI
19. The number of active picture elements in a television image depends on
(A) fly back time
(B) CRT screen size
(C) received band width
(D) FB ratio of receiver antenna
20. In a colour TV, the three primary colours are
(A) red, orange and blue
(B) red, blue and green
(C) red, green and yellow
(D) red, orange and green

PART B-5 AE (L): COMPUTER ENGINEERING

1. A logic gate is an electronic circuit which
(A) makes logic decision
(B) allows electron flow only in one direction
(C) works on binary algebra
(D) alternates between 0 and 1 values
2. NAND and NOR gates are called ‘universal’ gates primarily because they
(A) are available everywhere
(B) are widely used in IC packages
(C) can be combined to produce AND, OR and NOT gates
(D) are the easiest to manufacture
3. The ascending order of a data hierarchy is:
(A) bit-byte-record-field-file-data base
(B) byte-bit-field-record-file
(C) byte-bit-record-field-file-data base
(D) bit-byte-field-record -file-data base
4. A dumb terminal can do nothing more than communicate data to and from a CPU of a computer. How does a ‘smart’ terminal differ from dumb terminal
(A) it has a primary memory
(B) it has a cache memory
(C) it has a micro processor
(D) it has an input device
5. The main distinguishing features of fifth generation digital computer will be
(A) liberal use of micro processors
(B) artificial intelligence
(C) extremely low cost
(D) versatility
6. Which of the following terms is not used to refer to the recording density of a disk
(A) mega-density (B) single-density
(C) double-density (D) quad-density
7. The two kinds of main memory are
(A) primary and secondary
(B) random and sequential
(C) ROM and RAM
(D) central and peripheral
8. Which one of the following is not an octal number
(A) 29 (B) 75 (C) 16 (D) 102
9. Main problem with LCDs is that they are very difficult to read
(A) directly
(B) in bright light
(C) in dull light
(D) both (B) and (C)
10. Both computer instructions and memory addresses are represented by
(A) character codes
(B) binary codes
(C) binary word
(D) parity bit
11. A computer program that converts an entire program into machine language at one time is called a/an
(A) interpreter (B) simulator
(C) compiler (D) commander
12. All the keys on the IBM PC key board repeat as long as we hold them down. Such type of keys are known as
(A) typematic keys
(B) functional keys
(C) automatic keys
(D) alphabetic keys
13. What does the acronym ISDN stands for
(A) Indian Standard Digital Network
(B) Integrated Services Digital Network
(C) Intelligent Service Digital Network
(D) Integrated Services Data Network
14. Two basic types of operating system are
(A) sequential and direct
(B) batch and time sharing
(C) direct and interactive
(D) batch and interactive
15. Which of the following entity does not belong to word processing
(A) characters (B) words
(C) cells (D) paragraphs
16. A schema describes
(A) data elements
(B) records and filer
(C) record relationship
(D) all of the above
17. Which of the following is not a tool used to manage and control schedule performance
(A) CAD (B) PERT
(C) CPM (D) Gantt Chart
18. An expert system differs from a data base program in that only an expert system
(A) contains declarative knowledge
(B) contains procedural knowledge
(C) features the retrieval of stored information
(D) experts users to draw own conclusion
19. The virtual memory addressing capability of 80386 is
(A) 4 GB (B) 16 GB
(C) 64 GB (D) 64 TB
20. The 80486 microprocessor from Intel consists of
(A) a fast 32 bit CPU but no coprocessor
(B) a 32 bit CPU and an 80387 coprocessor only
(C) a 32 bit CPU, a 80387 coprocessor and memory management unit (MMU) only
(D) a 32 bit CPU, a 80387 coprocessor, memory management unit and a cache me

TIPS TO CLEAR AFCAT EXAM 2015
  1.  Always start will the easiest section, if you think you can do better in mathematics section, always start with mathematics, this will not only increase the efficieny but will also fetch you more marks in other sections beacause after solving your favourite section, you will feel more confident and perform better.
  2.  Avoid attempting questions which you are not sure about, AFCAT has negative marking scheme so you will lose 3 marks if you attempt three question wrong. 3 marks here are equal to one correct question. So in short three wrong answers will make you lose one correct answer.
  3.  Utilize the rough paper provided by IAF to solve your maths or spatial abitlity part. Even if you are sure about the answer, double check your answer by solving it on a rough paper.
  4.  Spatial ability is also one of the easy sections in AFCAT exam, 80-90% candidates can get more marks in spaitial abilty and military appititude sections of afcat exam. Only thing you need is to know what kind of questions you will face in spatial ability and mental ability sections of afcat exam.
  5.  Last year many candidates did wrong marking on their OMR sheet due to which their OMR sheet was marked as invalid and wasn’t considered for AFCAT exams. So make sure you are thinking twice before filling any data or marking anything on OMR sheet. Nevertheless you will find the officials over there and you can clarify anything which is confusing.
  6.  Start your afcat exam preparation which different sources like AFCAT exam books, AFCAT classroom coaching . At least 1 month prior preparation is required to crack the afcat exam. But candidates who are confident about their potential can prepare for afcat exam in just a week and clear it with very good marks.
  7.  Be on time, reach your afcat centre well before the time mentioned on your afcat exam admit card, there are many candidates who have missed their afcat exam just because they were late to the examination centre. Indian air force is very strict regarding this issue so make sure you know your afcat exam location well before the exam and reach there on time.
  8.  As per the trend and afcat exam cut off, it is good to attempt atleast 50 questions correctly without any negative marking. 50 correct questions will fetch you 150 marks which is more than enough to crack afcat exam.
  9.   Candidates who are applying for technical exams have to face EKT exam along with the afcat exam. If you fail in EKT exam though you have cleared the afcat exam, you won’t be eligible for technical branch in AFSB interview. Candidates who are only eligible for technical branch have to clear EKT exam along with afcat exam else they wont be able to clear for AFSB interview.
  10.   To prepare best for EKT exam, refer to previous EKT question papers and books which has basic questions answers related to your respective branch. If suppose your want to prepare for Electrical and Electronics, you could refer to a good engineering book which covers the basic concepts of electrical and electronics.



AFCAT PREVIOUS YEAR PAPERS ARE AVAILABLE AT THIS LINK

FOR COMPLETE PREPARATION VISIT MY FACEBOOK GROUP HERE


FOR  STUDY MATERIAL (ONLINE/OFFLINE) OR CRASH COURSE COACHING IN KOLKATA CALL DAS SIR AT 08961556195/09874581055

Following is the syllabus for AFCAT 2015 Syllabus:- 

General Awareness:
  • History
  • Sports
  • Geography
  • Environment
  • Civics
  • Basic Science
  • Defence
  • Art
  • Culture
  • Current Affairs
  • Politics 
Verbal Ability in English:
  • Comprehension
  • Error Detection
  • Sentence Completion
  • Synonyms
  • Antonyms 
  • Testing of Vocabulary
Numerical Ability:
  • Decimal Fraction, 
  • Simplification
  • Average
  • Profit & loss
  • Percentage
  • Ratio & Proportion
  • Simple interest
Reasoning and Military Aptitude Test:
  • Verbal Skills
  • Spatial Ability
- See more at: http://www.eduvidya.com/Entrance-Exam/AFCAT#sthash.yJNLH0cD.dpuf
Following is the syllabus for AFCAT 2015 Syllabus:- 

General Awareness:
  • History
  • Sports
  • Geography
  • Environment
  • Civics
  • Basic Science
  • Defence
  • Art
  • Culture
  • Current Affairs
  • Politics 
Verbal Ability in English:
  • Comprehension
  • Error Detection
  • Sentence Completion
  • Synonyms
  • Antonyms 
  • Testing of Vocabulary
Numerical Ability:
  • Decimal Fraction, 
  • Simplification
  • Average
  • Profit & loss
  • Percentage
  • Ratio & Proportion
  • Simple interest
Reasoning and Military Aptitude Test:
  • Verbal Skills
  • Spatial Ability
- See more at: http://www.eduvidya.com/Entrance-Exam/AFCAT#sthash.yJNLH0cD.dpuf
Following is the syllabus for AFCAT 2015 Syllabus:- 

General Awareness:
  • History
  • Sports
  • Geography
  • Environment
  • Civics
  • Basic Science
  • Defence
  • Art
  • Culture
  • Current Affairs
  • Politics 
Verbal Ability in English:
  • Comprehension
  • Error Detection
  • Sentence Completion
  • Synonyms
  • Antonyms 
  • Testing of Vocabulary
Numerical Ability:
  • Decimal Fraction, 
  • Simplification
  • Average
  • Profit & loss
  • Percentage
  • Ratio & Proportion
  • Simple interest
Reasoning and Military Aptitude Test:
  • Verbal Skills
  • Spatial Ability
- See more at: http://www.eduvidya.com/Entrance-Exam/AFCAT#sthash.yJNLH0cD.dpuf

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