Topic Wise Analysis of AAI Electronics Question Papers

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


Few Sample Questions from the AAI Electronics Question Papers


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

1 comments:

richdad said...

how to prepare for electronics,gk,quan apt ,english reference books

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