AAI Placement Paper

AAI Placement Paper 2011:-
1. What is a radar used for?
2. Which frequency do we use in MTI radar (COHO)?
3. What do you mean by CMRR of an amplifier?
4. Conversion related questions (binary to hexadecimal, decimal to hex)
5. Numericals (peak power)
6. What do you mean by FPGA?
7. In which OSI layer do we use the bridge?
8. Various other questions based on OSI Layer (Computer networking questions), TCP/IP protocols (multiple choice type)
9. Why do we use a delayed AGC?
10 .Numericals based on voltage & current sources.
11. What is VCO?
12 .Why do we use firewalls?
13. What is mirroring, RAID, etc.
14. Relation between transmitted power & range. If we increase power by 16, range increases by ?
15. Where do we use an AGC in a circuit?
(reciever, oscillator, both, ?)
16. What kind of feedback is used in an amplifier? (A question similar to this) is free running. a)monostable multivibrator b)astable c)both d)none

17. Find input impedance of a transmission line.
18. What is the use of RADAR
19. COHO in MTI Radar uses which freq.?
20. CMRR of amplifier?