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26th July 2014, 03:02 PM
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Join Date: Apr 2013
Re: Electronics Question paper for AAI Jr Executive

Here i am giving Airports Authority of India Jr. Executive Electronics exam Question paper:

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

GK

1) RIGHT TO EXPRESS COMES UNDER WHICH ARTICLE?
2) QUESTION ON COUNTRY CURRENCy?
3) QUESTION ON MULTI PURPOSE DAMS?
4)what are boxing rules called?
5)2 q’s on spellings.
6)2 q’s on correction of sentences.

AAI Jr Executive Electronics Question paper


1) Radar is a contraction of word ________ .
2) Radar range is measure in ______ unit.
3) What do you mean by second time around echoes.
4) What do you mean by maximum unambiguous range.
5) What is pulse repetition frequency?
6) What is minimum detectable signal.
7) Which factor affects the maximum radar range.
8) Frequency bands for radar system is _____ .
9) What do you mean by false alarm.
10) What is radar cross section of target.

11) MTI stands for ____ .
12) What do you mean by coherent signal.
13) What do you mean by non coherent signal.
14) What is function of delay line canceller.
15) What is function of phase detector.
16) Why output of MTI stage is bipolar
17) What is function of Tracking radar.
18) Which are the different methods for generating error signal in Tracking radar.
19) Explain function of COHO & STALO in MTI radar.
20) Explain function of duplexer.

21) What is Klystron.
22) Which are the different types of klystron.
23) What is the use of klystron.
24) What do you mean by mode.
25) What is the condition for maximum amplification in klystron.
26) How much is the efficiency of reflex klystron.
27) How much is the efficiency of magnetron.
28) Why magnetron is called cross field device.
29) Which mode is used for oscillation in magnetron.
30) How R. F. field is generated in magnetron.

31) What do you mean by Directivity.
32) What is power gain.
33) What is Effective aperture area
34) What is effective length.
35) What is aperture efficiency.
36) What is radiation resistance.
37) What do you mean by efficiency.
38) What is radiation intensity.
39) Which are the different feeds for paraboloids.
40) Which are the different types of lens antennas.

41) What is the function of radar receiver.
42) What do you mean by noise figure.
43) First stage of radar receiver is _____ .
44) What is the function of mixer.
45) What is the function of duplexer.
46) Which are the different types of duplexers.
47) What is the function of display unit.
48) Which are the important parameters of mixer.
49) What is conversion loss.
50) What is low noise temperature loss.
51) what do you mean by clutter.
52) Which are the different types of clutters.
53) What do you mean by radar cross section .
54) What do you mean by surface clutter.
55) What is angel echoes.
56) What is sea clutter.
57) What is function of synthetic aperture radar
58) What is the function of HF over horizon radar.
59) What is use of synthetic aperture radar.
60) What is use of Hf over horizon radar.


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