#1
24th July 2014, 03:54 PM
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Airport Authority of India Junior Executive Electronics last year question papers
Will you please share with me the Airport Authority of India Junior Executive Electronics last year question papers?
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#2
25th July 2014, 02:56 PM
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Re: Airport Authority of India Junior Executive Electronics last year question papers
As you want to get the Airport Authority of India Junior Executive Electronics last year question papers so here it is for you: 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 Broadband long distance communications are originally made possible by the advent of (a) telegraph cables (b) repeater amplifiers (c) HF radio (d) Geostationary satellites 9.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) Contact Details: Airport Authority of India Rajiv Gandhi Bhawan, Safdarjung Airport, Sri Aurobindo Marg, Safdarjung Airport Area, Satya Sadan, New Delhi, Delhi 110003 011 2463 2950 India Map Location: [MAP]https://www.google.co.in/maps?q=Airport+Authority+of+India,+Sri+Aurobindo+M arg,+Satya+Sadan,+New+Delhi,+Delhi&hl=en&ll=28.586 18,77.211056&spn=0.010589,0.015171&sll=28.540572,7 7.196229&sspn=0.010594,0.015171&oq=Airport+Authori ty+of+India+&t=m&z=16&iwloc=A[/MAP] |
#3
10th March 2015, 05:37 PM
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Re: Airport Authority of India Junior Executive Electronics last year question papers
COULD YOU PLEASE EMAIL ME THE PREVIOUS QUESTION PAPERS TO vinasnaik@gmail.com.. It will be help full.. thank you have a good day..
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