Kerala University 2009-2nd Sem B.Tech Combined First and , -university question paper

Combined 1st and 2nd Semester B.Tech. Degree Examination, May 2009
(2008 Scheme)
08-109 : BASIC COMMUNICATION AND info ENGINEERING
Time: three Hours Max. Marks: 100
PART – I
ans all ques. : (10×4=40 Marks)
1. Compare the characteristics of JFET with BJT.
2. Draw the CMOS inverter circuit.
3. Briefly discuss the ion implantation process.
4. provide the principle of FM demodulation.
5. Briefly discuss an application of radar.
6. elaborate the functions of a satellite transponder ?
7. What is the memory hierarchy in a computer system ?
8. elaborate the transmission guided media in a communication system ?
9. Briefly discuss the WLL technology.
10. elaborate the functions of a router in a network ?
PART – II
ans any 2 ques. from every Module. (6×10=60 Marks)
Module – I
11. discuss with diagram the input and output characteristics of a NPN transistor in
common collector configuration.
12. Draw the circuit diagram of a common emitter amplifier and discuss how it
amplifies the input signal.
13. discuss with diagram the working of a inverting and a non-inverting operational
amplifier circuit.
Module – II
14. discuss with block diagram the working of a CRO.
15. discuss with block diagram the working of PAL TV receiver.
16. discuss with necessary diagram how laser action is achieved in semiconductor
and hence discuss the working of a semiconductor laser.
Module – III
17. discuss with necessary diagram the working of ALU in a microcomputer.
18. discuss the basic principle of ASK, PSK and FSK digital modulation techniques.
19. discuss the concept of client-server computing technique.
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Earning:   Approval pending.