AAI Jr Executive Airport Operations Model paper

Will you please provide here Airports Authority of India AAI Jr. Executive Airport Operations (ATC) question paper???

[Kiran Chandar]

You need Airports Authority of India AAI Jr. Executive Airport Operations (ATC) question paper, here I am giving:

1. Which of the following schemes have the best error performance with the same energy per bit?
1. 16QAM b. 16PSK c. QPSK

2. Same Antenna is used for Tx and Rx. Radar range related to Antenna gain as
1. Directly prop. To G
2. Direc. Prop. To sq. root of G
3. Inversely prop to G

3. Thermal Noise in conductor related to B
1. B
2. 1/B
3. B2
4. Square root of B

4. A control system with feed back gain 0.1 and forward gain 10. What is the sensitivity of the system w.r.t the feed back system.

5. The value of ‘k’ for the system to be stable is. ( 6th degree Characteristic Eqn given)

6. Which of the following system is stable.
1. As2 + Bs +C
2. As2 – Bs +C
3. As4 + B s3 +Cs+D
4. -As2 – Bs -C

7. Linux OS based on which architecture

8. Comparison betweeb Macro and Subroutine
1. Macro better that Sub Rtne with respect to storage time and execution time
2. Vice versa
3. Macro better that Sub Rtne with respect to execution time only
4. Vice versa

9. Which of the following is a privileged instruction?
1. MOV A B
2. INT 21
3. ADD A B
4. IN 08

10. Which of the following instruction is not converted to binary by an Assebly Language Program?
1. TRAP
2. Interrupt
3. Privilige instruction
4. Sorry don’t remember

11. In which type of machine can multiple tasks be done
1. Virtual Machine
2. Sorry don’t remember

12. Which of the following has the highest distortion?
1. A
2. B
3. AB
4. C

13. Which of the following distortions occur in Class B push pull amplifier?
1. Harmonic
2. Intermodulation
3. Phase
4. Sorry don’t remember

14. ?(s)/T(s) of a rotational system (J,B,k regular notaions)

15. Schmitt Trigger with 3V & 1V UTP and LTP respectively. A sinusoidal input with 10V peak is fed as the input. The output swings between

16. Op-amp circuit given. Identify the circuit (Ans: Peak detector)

17. 6 bit binary ladder with 101001 as input ( 0= 0V , 1 = 10V). Output voltage is ——

18. Doppler Radar of 1125 MHz. Frequency of received echo is 125 MHz. The conclusion is
1. Target also has a radar
2. Target moving away
3. Target approaching

19. Microprocessor cycles between
1. Fetch and Execution operations.
2. Fetch and Halt

20. Modulation index of an FM system with 2.5V, 500 Hz input and 5KHz deviation is

21. Routh’s Criterion gives
1. Number of roots on the LHS of S plane
2. Number of roots on the RHS of S plane

22. For the system to be stable, the roots of the characteristic Equation must lie
1. Left side of the S plane
2. Right side of s plane

23. Impulse response h(t) of a system is
1. Inverse Laplace transform of Transfer Function

24. The output of a LTI system with Guassian process input is
1. Gaussian
2. Poisson

25. Spectral Density and Auto-Correlation are
1. Laplace Transform pair
2. Fourier Transform Pair.

26. A flex Klystron is a
1. Microwave amp
2. Microwave Oscillator
3. Both amp and Oscillator
4. High cavity tube

27. S Matrix related question.

28. Block diagram given

Oscillator(1MHz) à Divider (/ 10^6) à Schmitt Trigger à Flip Flop à. Output is

1. Pulse Train of width 1 sec
2. Pulse Train of width 2 sec
3. Pulse Train of width 0.5 sec

I will write the AAI Jr Executive Airport Operations exam. Please forward me sample paper for the exam?

[Raman Vij]

Airport Authority of India (AAI) conducts the exam for the Junior Executive Airport Operations post.

The exam contains following sections

Section I: non-technical
Section II: technical
SECTION I1.general knowledge

As per your request, I am giving you sample paper for the AAI Junior Executive Airport Operations, so prepare accordingly.

1.Radar is used for?

2.COHO in MTI Radar uses which freq.?

3.CMRR of amplifier?

4.Binary to hexadecimal conversion?

5. Decimal to hexadecimal conversion?

6.Firewalls are used for?

7.Full form of FPGA?

8.Numerical based on Duty cycle and peak power?

9.IF transmitted power is increased by 16 than range is increased by a) 16, b)8, c)4, d) none of these?

10.AGC is used in which of the stage a) receiver b) oscillator c) both a and b d) none of these?

11.Delayed AGC is used for which purpose?

12.Question based on the value of mirroring?

13.Question based on RAID.

14.Bridge is used for which of the OSI layer?

15. 5-6 questions are based on various OSI layer and TCP/IP.

16.Which type of feedback is used in amplifier a) +ve b) -ve c) both a and b d) none of these?

17.question based on i/p impedance of transmission line of a given wavelength.

18.What is three things for workstations of DNS server?

19.Which of the followinf is free-running?a)monostable multivibrator ,b)astable multivibrator, c)both a and b, d) none of these?

20. 2-3 questions based on voltage and current source.

21. One question of VCO.

Sample paper 2

1) The radiation pattern of yagiuda antenna? a)omnidirectional b)broadside c)end side

2)Function of synchro? a)transducer b) modulator c)demodulator d)encoder & decoder

3)Voltage feedback gives?

4)bcd value of 001100100001?

5)questions on micro controller pins?

6)simple questions on logic gates?

7)simple problems on rlc networks?

8)function of RAM?

9)hall effect is used to measure?

10)in RC phaseshift oscillator a condition to get oscillations is hfe>= 4K+23+29/K…

11)directivity of half wave dipole is….1.64..

12)READY signal is used in MP becoz of slow devices connected…..

13)TRAP is non maskable interrupt…..

14)value of threshold voltage?

15)function of magnetron?

16) combinational ckt means a)with memory b)with out memory c)constucted with logic gates d) both b & c

17) 2 q’s on nmos transistor.

18) 1 q on wheatstone bridge, 1 q on kcl, kvl

19)what is rom ? a) temporary storage b)permanent storage c)…..d)…

20) 1 q on rat race junction.

21) 1 q on txn line short ckted condition.

22)1 q on sqrt(81max).

23) take a 4 digit binary noi.e A.and then what is A+Abar= a)1101 b)1011 c)1111 d)0000

24) 1 q on op amp prob , 1 q on slew rate

25) 1 q on which filter is used for extracting sine signalof 1mhz

26) if there are 8 rc filter sections what is the individual phase shift? a)180 b)45 c)22.5