AAI Jr Executive Electronics Exam Question Paper

Will you provide the question paper of AAI(Airport Authority Of India) Jr Executive (Electronics)?

[Quick Sam]

List of few questions of AAI Jr Executive Electronics Exam are given below:
1. In a communication system, noise is most likely to affect the signal
(a) at the destination
(b) In the channel
(c) in the information source
(d) at the transmitter

Ans :: b

2. Broadband long distance communications are originally made possible by
the advent of
(a) telegraph cables
(b) repeater amplifiers
(c) HF radio
(d) Geostationary satellites
Ans :: b

3. Which of the following characterizes an analog quantity?
(a) Discrete levels represent changes in a quantity.
(b)Its values follow a logarithmic response curve.
(c)It can be described with a finite number of steps.
(d)It has a continuous set of values over a given range.
Ans :: d

4. A differential amplifier has a differential gain of 20,000 . CMRR=80 dB. The common mode gain is given by
(a) 2 (b) 1 (c) 1/2 (d) 0

Ans :: a

5. Indicate the false statement. Fourier analysis shows that the saw tooth
wave consist of
(a) fundamental and subharmonic sine waves
(b) a fundamental sine wave and an infinite number of harmonics
(c) fundamental and harmonic sine waves whose amplitude decreases with
the harmonic number
(d) sinusoidal voltages, some of which are small enough to ignore in
practice
Ans :: a

6. The most commonly used amplifier in sample & hold circuits is
a) A unity gain non-inverting amplifier b) A unity gain inverting amplifier
c) An inverting amplifier with a gain of 10 d) An inverting amplifiers with a gain of 100

Ans :: b

7. What is the maximum data rate sustainable by a noisy channel with a bandwidth of 10KHz and a
signal to noise ratio of 2047?
(a) 110 Kbps (b) 1 Kbps (c) 20 Kbps (d) 1023 Kbps (e) 10 Kbps

8. UTP cables are twisted to
(a) reduce the cross talk. (b) decrease the length. (c) strengthen them.
(d) make them easier to use in networks. (e) reduce the cost of manufacturing.

9. Select the correct statement(s).
(a) The physical topology of an Ethernet LAN connected through a switch is a star.
(b) The physical topology of an Ethernet LAN connected through a Hub is a Star topology.
(c) The physical and logical topologies of networks are always different.
(d) The Internet can be considered as a network with a Bus topology.
(e) The physical topology of all types of Ethernet LANs is a Bus topology.

10. waveguide are generally made of
(a) Aluminium
(b) Bronze
(c) Both (a) and (b)
(d) none of these
Ans :: c

11. Which type of signal is represented by discrete values?
(a) noisy signal
(b) nonlinear
(c) analog
(d) digital

Ans :: d

12. What is the subnet mask of the network identified as 10.16.48.0/20 in dotted decimal notation?
(a) 255.255.255.0 (b) 255.255.240.0 (c) 10.16.48.255 (d) 10.255.255.255 (e) 255.255..254.0

13. Select the correct statements.
(a) HTTP uses TCP as the transport protocol.
(b) HTTP uses TCP as well as UDP as the transport protocol.
(c) SMTP uses UDP as the transport protocol.
(d) DNS uses UDP as the transport protocol.
(e) SMTP uses TCP as the transport protocol

14. Given BCD number 1001 0011, its decimal equivalent is
(a) 147
(b) 143
(c) 93
(d) 39
Ans :: c

15. In differential amplifiers, the common emitter current is made constant
(a) To make Ad (differential gain) very small
(b) To make Ac (common mode gain) very small
(c) To make the amplifier symmetrical
(d) To keep CMRR constant

Ans :: b

16. Converting data into signals by transforming and encoding the information to produce electromagnetic signals is the functionality of a
(a) source
(b) transmitter
(c) receiver
(d) destination

Ans :: b

18. Switching systems
(a) Improve the efficiency of data transfer
(b) are not used in data system
(c) require additional lines
(d) are limited to small data networks
Ans :: a

20.Microwave following the curvature of earth, is know as
(a) fading
(b) Ducting
(c) troposphere scatter
(d) ionosphere reflection
Ans :: b

25. Indicate the false statement. The square of the thermal noise voltage
generated by a resistor is proportional to
(a) its temperature
(b) Its resistance
(c) Boltzmann’s Constant
(d) the bandwidth over which it is measured

Ans :: a

28. If the plate supply voltage for a plate modulated class C amplifier is V, the
maximum plate-cathode voltage could be almost as high as
(a)4v
(b)3v
(c)2v
(d)1v
Ans :: a



Non-Technical Section

AAI Numerical Aptitude Questions

(1) The least perfect square number which is divisible by 3,4, 5, 6 and 8 is
(a) 900
(b) 1600
(c) 2500
(d) 3600
Ans: ( d ) 3600

2. A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes are equal. What is the total number of notes ?
(a) 60
(b) 90
(c) 75
(d) 45
Ans: ( b ) 90

3. In an organization, 40% of the employees are matriculates, 50% of the remaining are graduates and remaining 180 are post-graduates. How many employees are graduates ?
(a) 360
(b) 240
(c) 180
(d) 300
Ans: ( c ) 180

4. In class of 100 students 50 students passed in Mathematics and 70 passed in English, 5 students failed in both Mathematics and English. How many students passed in both the subjects?
(a) 25 (b) 30 (c) 50 (d) 45

Ans :: a

5. If 10 cats can kill 10 rats in 10 minutes how long will it take 100 cats to kill 100 rats
(a) 1 minutes (b) 10 minute (c) 100 minutes (d) 10000 minutes

Ans :: b

6. A clock shows the time as 6 a.m. If the minute hand gains 2 minutes every hour, how many minutes
will the clock gain by 9 p.m.?
(a) 30 minutes
(b) 25 minutes
(c) 28 minutes
(d) 34 minutes

Ans :: a

AAI General Awareness Questions

15. National Institute of Oceanography is located in :
a. Calcutta
b. Chennai
c. Mangalore
d. Panaji
Ans : d

16. The 2004 Olympics were held in :
a. Bangkok
b. Rome
c. Athens
d. Nagasaki
Ans : c

17. Who headed the committee appointed on Kargil War ?
a. Gen. V. P. Malik
b. Gen. S. K. Sinha
c. K. Subramanyam
d. K. C. Panth
Ans : c

18. The C. K. Nayudu Trophy is related to the sport of
a. cricket
b. Hockey
c. Football
d. Chess
Ans : a

19. New York is situated on the river
a. Hudson
b. Thames
c. Danube
d. Tigris
Ans : a

20. “The Woman of the Millennium” selected by the British Broadcasting Corporation (BBC) is
a. Margaret Thacher
b. Hillary Clinton
c. Chandrika Kumaratunga
d. Indira Gandhi
Ans : d

21. On 21 February 2012…………….Government and the Airport Authority of India AAI signed a memorandum of understanding (MOU) to establish airports in ……….. and ………….

Ans :: Jharkand Government,Jamshedpur and Bokaro

22. Territorial waters of India extends up to how many nautical miles ?

(a) 8 (b) 12 (c) 16 (d) 22

Ans :: b

23. The General Assembly of United Nations meets
a. Once a year
b. twice a year
c. thrice a year
d. Once in five years
Ans : a

24. The Finance Minister ofIndia recently made a mention that Infrastructure Development in India should be done on PPP model only. What is the full form of’PPP’?

a) Purchasing Power Parity
b) Public Private Partnership
c) Purchase Produce Provide
d) People’s Programme & Priority
e) None of these

Ans :: b

25. The Golden Peacock Award for the Best Film was given to which of the following films at the 42nd International Film Festival of India which came to an end at the Kala Academy in Panaji, Goa on 3 December 2011?

a) Russian film Elena
b) an Israeli film Restoration
c) Columbian Film Porfirio
d) Malayalam film Adaminte Makan Abu

Ans :: c

Will you please provide the question paper of AAI Jr Executive Electronics Exam ?

[Quick Sam]

Here is the list of few questions of AAI Jr Executive Electronics Exam Question Paper which you are looking for .

1. In a communication system, noise is most likely to affect the signal
(a) at the destination
(b) In the channel
(c) in the information source
(d) at the transmitter
2. Indicate the false statement. Fourier analysis shows that the saw tooth
wave consist of
(a) fundamental and subharmonic sine waves
(b) a fundamental sine wave and an infinite number of harmonics
(c) fundamental and harmonic sine waves whose amplitude decreases with
the harmonic number
(d) sinusoidal voltages, some of which are small enough to ignore in
practice
3. One of the following types of noise becomes a great importance at high
frequencies. Is the
(a) random noise
(b) shot noise
(c) impulse noise
(d) transit-time noise
4.Indicate the false statement. The square of the thermal noise voltage
generated by a resistor is proportional to
(a) its temperature
(b) Its resistance
(c) Boltzmann’s Constant
(d) the bandwidth over which it is measured
5.If the plate supply voltage for a plate modulated class C amplifier is V, the
maximum plate-cathode voltage could be almost as high as
(a)4v
(b)3v
(c)2v
(d)1v
6. Which one will be stable if characteristics equation is
(a) AS^2+BS+C
(b) AS^2-BS-C
(c) AS^4+BS^2+CS+D
(d) -AS^2+BS-C
7.When microwave follows curvature of the earth, this I know as
(a) fading
(b) Ducting
(c) troposphere scatter
(d) ionosphere reflection
8. Broadband long distance communications are originally made possible by
the advent of
(a) telegraph cables
(b) repeater amplifiers
(c) HF radio
(d) Geostationary satellites
9. Switching systems
(a) Improve the efficiency of data transfer
(b) are not used in data system
(c) require additional lines
(d) are limited to small data networks
10. Basic group B
(a) occupies the frequency range from 60 to 108 k hz
(b) consist of erect channels only
(c) is formed at the group translating equipment
(d) consist of five super group
11. In differential amplifiers, the common emitter current is made constant
(a) To make Ad (differential gain) very small
(b) To make Ac (common mode gain) very small
(c) To make the amplifier symmetrical
(d) To keep CMRR constant
12. Given BCD number 1001 0011, its decimal equivalent is
(a) 147
(b) 143
(c) 93
(d) 39
13. An amplifier has voltage gain of 50. this gain in db will be
(a) 17 db
(b) 31 db
(c) 34 db
(d) 68 db
14. In a E plane Tee, the output of the two rams are
(a) 180 degree out of phase
(b) In the same phase
(c) 90 degree out of phase
(d) none of these
15. waveguide are generally made of
(a) Aluminium
(b) Bronze
(c) Both (a) and (b)
(d) none of these

Answers
1.(b) 2.(a) 3.(d) 4.(a) 5.(a) 6.(a) 7.(b) 8.(b) 9.(a) 10.(a) 11.(b) 12.(c) 13.(c) 14.(a) 15.(c)

The AAI written Question paper dwells of two sections first: – Non Technical, second Technical,
The first section has 4 types of questions

1. GK (General Knowledge questions)
2. General EnglishThe general english test questions are fill in the blanks type and errors
3. Reasoning
4. Other (puzzles, etc.)

Section 2:
The subjects for the section 2 are Microwave & Radar, Communication, Linear – Digital Devices, Networking (CN)
Important sample technical questions for AAI Placement Test:
Electronics (engineering), Communication, Electrical, B.Tech
What is a radar used for?
Which frequency do we use in MTI radar (COHO)?
What do you mean by CMRR of an amplifier?
Conversion related questions (binary to hexadecimal, decimal to hex)
Numericals (peak power)
What do you mean by FPGA?
In which OSI layer do we use the bridge?
Various other questions based on OSI Layer (Computer networking questions), TCP/IP protocols (multiple choice type)
Why do we use a delayed AGC?
What is VCO?
Why do we use firewalls?
What is mirroring, RAID, etc.
Relation between transmitted power & range If we increase power by 16, range increases by?
Where do we use an AGC in a circuit?

I need to write the AAI Jr Executive Electronics Exam this year. Will you please forward me question paper for the AAI Jr Executive Electronics Exam?

[Kiran Chandar]

As per your need, I am forwarding you question paper for the Junior Excutive (Electronics) exam conducted by (Air Port Authority of India).

1) Micro controller pins
Study 8051 architecture and the Functions Of its Pins.

2). Function Of RAM?
Random Access Memory(RAM) is used to perform multi-tasking in our computers. Data from the programmes which are running is stored in RAM to make easy access for the computer’s processor thus reducing the loading time of the Programmes which you are running in your computer.

3) Simple Problems on Logic Gates and RLC networks?

4) Hall Effect is used to measure
a. Electric Field
b. Magnetic Field
c. Current Field
d. Electro Magnetism
Ans: Magnetic Field

5) BCD value of 001100100001?

0011 0010 0001 -

0001 à1
0010 à2
0100 à4
1000 à8
0011 à 1 + 2 = 3
0010 à2
0001 à 1

Answer is 321

6) The Radiation Pattern of Yagi - Uda antenna?

7) NMOS Transistor

8)What is a Combinational Circuit?

9) What is the value of Threshold voltage?

10)What is the function of Magnetron?

11) TRAP is an Example of non maskable interrupt?

a.Non maskable Interrup
b .Maskable Interrupt
c. Control Bus
d. Address Bus

Ans: Non –maskable Interrupt

12) Wheatstone bridge - 1 question?

13) ROM is a

a. Temporary Storage
b. Permanent Storage
c. Processor
d. Controller

Ans: Permanent Storage

14)Which Filter is used for Extracting sine signal of 1mhz?

Lock-in amplifier is a technique used to measure AC signals partially or completely by performing a modified fast-Fourier transform(FFT) on the input signal .