Airports Authority of India -AAI Whole-Testpaper Contributed by chandrika l updated on Jun 2019

 

AAI Latest Placement paper in Hyderabad

Airports Authority of India question paper 2011 June (shad an college of engineering) Hyderabad
Hi I’m Chandrika  Im appeared AAI Written Test Here I’m sharing my experiences


AAI PATTERN OF QUESTION PAPER


Written Test Pattern


Aptitude Analytical and Verbal Aptitude-20 Questions
Topics to refer-Simple Problems on sum,Ratio,Profit and Loss,Time and Distance
Verbal Ability-Synonyms,Antonyms,Reading Comprehension,analogies


G.K  -7- 10 QUESTIONS


Electronics and communications(around 70-80 questions)


Almost all one word answers and a few problem solving type.


No.of subjects from each subject
20-23 Questions from Digital Electronics
15-20 Questions  from Analog Devices
10-15 Questions from  Digital Communication
10-12 Questions from Microprocessor(8085)
10-12 Questions  from Signals and Systems
4-6 Questions from Opamps
5-8 Questions from Controls
2-5 Questions from Microwave Engineering
2 Questions iso-osi model
3 Questions  rs 232 standard

TOPICS OF EACH SUBJECT FROM WHICH MOST OF QUESTIONS WERE ASKED


1) DIGITAL ELECTRONICS(GATE, MUX,F/F)


2) MICROPROCESSOR(8085,MICROCONTROLLER)( Q’S ON interrupt structure,rs 232 standard,ppi,8257,8259,8255,memory mapping schemes,icw,ocw)


3) ANALOG DEVICES (AMPLIFIERS(class a,b,c)OPAMPS(q’s on a/d,d/a converters,differentiator,integration,frequency formulas)


4) DIGITAL  COMMUNICATIO(Q’S ON FDM AND TAD THEORY BASED)


5) MICROWAVE (SPACE WAVE  PROPAGATION,ANTENNAS)


6) CONTROL SYSTEMS( SIMPLE PROBLEMS,QUESTIONS ON FEEDBACK,CONTROLLERS)


7) SIGNALS  AND SYSTEMS(Q’S ON FOURIER TRANSFORMS,SINC FUNCTIONS,Q’S ON CONVOLUTIONS)


8) CONTROL  SYSTEMS


9) Q’S  CONTROLLERS,ROUTH STABILITY,FINAL  VALUE THEORY,PHASE SHIFTINF OF 1/S^2,


10) Q’s on marginal stability of a system s^5+s^4+-----


11) Q’s on effect  of + ve & -ve feedback on stability


12) Digital Electronics


13) Q’s mostly on gates,muxes,f/f’s


14) 2 k-map questions,9’s compliment 0f 19,find out hexadecimal code of…


15) Q’s on encoder,decoder asking no. of active lines


16) Flashing memory is??,q’s on octal to hexadecimal


17) Microprocessor 


Questions on stack register,instruction pointer,rst 6.5,7,5
18) Microcontroller:
Questions what is interrupt,q’s on interrupt structute,memory mapping schemes,q’s on 8255,8257,8259,rs232 standards


19) Signals and systems:
Questions on fourier transform, sinc functions,q’s on convolution


20) Communications


21) Digital communication: q’s on tdm and fdm etc…


22) How pulse train generated using rectangular pulse


23) Questions on quantiser in pcm


24) why fm is less prone to noise,what is envelope detector,fn’s of limiter in detector of fm


25) cascading lpf and hpf results in…


26) a question : signal limited to 1000khz sampled at nyquist rate,quantized 128 ,calculate bit rate


27) q’s on optical fibre,total internal reflection


28) networks: 2 q,s aspaper more of theory based  q on resonant freq formula


29) instrumentation: only 22-3 q’s from instrumenta  : input impedance of cro, q’s on why fet in electronic voltmeter,q’ on pitot tube


30) analog,edc:


31) q’s on tunnel diode,zener diode,q’s on class a,b,c  amplifiers efficiency,duty cycle


32) q’s on opamps:


33) o/p voltage calculation of opamp,cascading lpf and hpf


34) q’s on a/d,d/a converter,


35) differentiator,integrator using opamp,their freq formuila

 

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