Airport Authority Of India Exam Paper : Assistant traffic Controller Questions

भारतीय विमानपत्तन प्राधिकरण

Airport Authority Of India

Assistant Traffic Controller Model Questions

Airports Authority of India (AAI) was constituted by an Act of Parliament and came into being on 1st April 1995 by merging erstwhile National Airports Authority and International Airports Authority of India. The merger brought into existence a single Organization entrusted with the responsibility of creating, upgrading, maintaining and managing civil aviation infrastructure both on the ground and air space in the country.

AAI Assistant Traffic Controller (Jr. Executive ) Examination Consists 100 Question Here we Are Posting Some Questions Based On Memory......

1. Which of the following schemes have the best error performance with the same energy per bit?
2. Same Antenna is used for Tx and Rx. Radar range related to Antenna gain as
3. Thermal Noise in conductor related to 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.
7. Linux OS based on which architecture
8. Comparison between Macro and Subroutine
9. Which of the following is a privileged instruction?
10. Which of the following instruction is not converted to binary by an Assembly Language Program?
11. In which type of machine can multiple tasks be done
12. Which of the following has the highest distortion?
13. Which of the following distortions occur in Class B push pull amplifier?
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 approaching
19. Microprocessor cycles between
20. Modulation index of an FM system with 2.5V, 500 Hz input and 5KHz deviation is
21. Question Related to Routh’s Criterion .
22. For the system to be stable, the roots of the characteristic Equation must lie
23. Impulse response h(t) of a system is (
24. The output of a LTI system with Guassian process input is
25. Spectral Density and Auto-Correlation are
26. A flex Klystron is a
27. Question related to S Matrix.
28. Given a Block diagram (not Possible to draw here) and ask to find out the Output

Read More

aai electrical exam papers,aai electrical and electronics questions,aai electronics sample questions

Airport Authority Of  India (AAI)

Executive Trainee Exam

Electronics and Electrical Model Questions

Q.1.Shunt­ wound Generators (self­ excited) used for

• Boosters
• Charging Batteries
• a & b are correct
• None of the above.

Q.2.If a generator gives spark on commutator the reason is

• Overload
• Armature Short circuit
• a & b are correct
• None of the above.

Q.3.The equipment required for protection of transformers.

• Breather
• Conservator
• Emergency release
• Temperature Gauge

Q.4.Why flux is used for soldering?

• To remove oxides from the surface to be soldered
• it is used as a paste
• without flux cannot solder
• None of the above.

Q.5.Empire cloth is used for

• Overhead lines
• switches.
• Insulating the machines while winding
• None of the above

Q.6.Thermal efficiency is defined as the ratio of

• Output Energy / Input Energy.
• (Output Energy / Input Energy) x 100
• Useful heat / Total heat
• (Useful heat / Total heat) x 100

Q.7.Moving iron attraction type meter used for

• Measure current in A.C
• Measure current in D.C
• a & b are correct
• None of the above

Q.8.Moving coil instrument used in

• ac only
• dc only
• both ac & dc
• None of the above

Q.9.Fluorescent lamp circuit is a

• Series Circuit
• Parallel Circuit
• Combination of series & Parallel Circuit
• None of the above

Q.10.In Fluorescent lamp circuit why choke is used

• it gives low Voltage impulse for starting lamp
• It gives high Voltage impulse for starting lamp
• It prevent the lamp from over voltages
• it acts as a stabillizer

Q.11.Alternators are rated in

• KW .
• KVA
• KVAR
• None of the above

Q.12.The inverse of reluctance is called

• Permence
• Permittance
• Saturation
• None of the above

Q.13.Megger instrument is used for

• Testing the insulation resistance of the circuit
• Voltage measurement
• Current measurement
• None of the above

Q.14.Cinema Projector works in

• AC
• DC
• Both AC & DC 
• None of the above

Q.15.Horse power is the unit of

• Thermal Power
• Electrical Power
• Mechanical Power 
• None of the above

Q.16.Fusing factor ratio is

• Current rating of fusing element \ Minimum fusing current
• Minimum fusing current \ Current rating of fusing element
• fusing factor not have ratio
• None of the above

Q.17.The transformer neutral is earthed in the secondary reason is

• Prevent from over voltages
• Prevent from over current
• For testing the phase at any point
• None of the above

Q.18.Hot­ wire type instrument used in

• AC only
• DC only
• Both AC & DC
• None of the above

Q.19.Charging rate for lead acid battery

• Charging current = capacity \ hour
• Charging current = hour \ capacity
• Charging current = Capacity x Hour
• None of the above

Q.20.Conductance is a reciprocal of

• Voltage
• Current
• Resistance
• None of the above

Q.21.Form factor is defined as the ratio of

• Average value \ r.m.s value
• Maximum value \ r.m.s value
• r.m.s value \ average value
• None of the above

Q.22.Maxwell­ wien bridge is used for measuring

• Inductance
• Capacitance
• Voltage
• None of the above

Q.23.555 timer is compatible with

• TTL logic circuits
• CMOS logic circuits
• TTL & CMOS logic circuits
• None of the above

Q.24.AND gate performs

• Addition
• Subtraction
• Divison
• Multiplication

Q.25.Output for the following gate is

• Y = A . B
• Y = A + B
• Y = 0
• None of the above

Q.26.Choose the associative Law

• A + ( B + C ) = ( A + B ) + C
• A ( B + C ) = AB + AC
• (AB) C = A (BC)
• A & C are correct.

Q.27.High ­ voltage ink film resistor voltage range up to

• 500KV
• 250KV
• 725KV
• 1000KV.

Q.28.Damping Force produced by

• air frictions
• Eddy Current
• Fluid Friction
• All of the above

Q.29.Which one of the following is high pressure boiler?

• La­mount Boiler
• Benson boiler
• a & b are correct
• None of the above

Q.30.For charging battery the following method is used

• Variable Current System
• Constant Current System
• Constant Voltage System
• b & c are correct.

Q.31.Ohm's Law does not apply to

• Linear Devices
• non­linear devices.
• Series circuit
• None of the above

Q.32.Susceptibility is defined as the ratio of

• intensity of magnetisation \ magnetising force.
• magnetising force \ intensity of magnetisation
• material \ Vacuum
• None of the above

Q.33.Varistor is a

• Linear resistor
• Non­Linear resistor.
• Capacitor
• None of the above

Q.34.Battery ratings are in

• KW
• KVA
• AH
• None

Q.35.which one of the following is idempotent law

• A . A = A
• A + A = A
• a & b are correct
• None of the above

Q.36.SMD* is a

• Transistor
• Resistor
• Hard disk drives
• None of the above

Q.37.Which one of the following material is used for Violet LED?

• Indium Gallium Nitride
• Boron Nitride
• Aluminium Nitride
• Zinc Soloride

Q.38.Capacitor can be used as a

• Temporary Battery
• Primary Battery
• Secondary Battery
• None of the above

Q.39.Match the following List ­I with List ­ II List ­ I List ­ II
1. Chemical effect           a. Lead­acid
2. Trickle Charging         b. alkaline ­ manganese
3. Primary Battery          c. Keep it fully Charged
4. Secondary Battery     d. d.c. ampere­ hour meters

• 1­d, 2­c, 3­b, 4­a
• 1­c, 2­d, 3­b, 4­a
• 1­a, 2­b, 3­c, 4­d
• 1­b, 2­a, 3­d, 4­c

Q.40.Reciprocal of power factor is

• Apparent Power
• Active Power
• Q ­ Factor of a coil
• None of the above

Read More