## Questions Search

This website covers previous years question papers of various universities and colleges in India. Moreover, the information on admission to various courses from various universities/institutes/colleges are also available. Research paper questions are also updated from time to time. Also the latest teaching faculty plus teachers jobs, Government jobs, Banking Jobs, and other jobs are regularly updated to help jobless candidates. Admit cards of various recruitment of Govt organisation are updated. Search your terms using the sejavascript:void(0)arch box provided.
 Are you student / faculty of Vikram University Ujjain? We are collecting old question papers. If you have latest question papers 2016 / 2015 / 2014 years, then contact us through email [email protected] / [email protected] . We will give you money for your question papers you send to us. TNPSC Group IV 2016 Model Questions Answers Anna Univ B.E Civil Engineering Previous Years Question Papers Anna Univ B.E EEE Previous Years Question Papers Anna Univ B.E Mechanical Engineering Previous Years Question Papers Anna Univ B.E CSE Previous Years Question Papers Anna Univ B.E ECE Previous Years Question Papers VTU Question Papers Dharmsinh Desai University Previous Years Question Papers NEW: Last 05+ Years Question Papers of CE6451 Fluid Mechanics and Machinery NEW: ME6502 Heat and Mass Transfer AU Chennai Last 10 Set of Question Papers NEW: CE2027 Housing Planning and Management 2014 Question Paper Himachal Pradesh University (HPU) Previous Years Question Papers ME2027 PPCE All Previous Years Question Papers [NEW] GNDU Previous Years Question Papers [NEW] Teachers TGT, PGT, PRT jobs in New Delhi Schools GATE 2016 JANUARY

## Thursday, December 17, 2015

### Annamalai University December 2014 Question Paper B.Sc.Electronic Science :Electronic Communication

Annamalai University december 2014 question paper
B.Sc. DEGREE EXAMINATION December 2014
(ELECTRONIC SCIENCE)
(THIRD YEAR)
(PART-III)
730. ELECTRONIC COMMUNICATION
Time: Three hours Maximum: 100 marks
SECTION – A
(5×4=20)
1. State the advantages of FM.
2. Explain the actions of Balanced Slope Detector.
3. With a block diagram, explain the working of super heterodyne receiver.
4. Write a note on resonant antenna.
5. Explain the operation of Yagi –Uda antenna.
6. Discuss the wave propagation through troposphere.
7. Write short notes on microwave links.
8. Explain four wire terminating set.
SECTION – B
(5×16=80)
9. Describe FM and modulation index. Derive the formula for the
instantaneous value of an FM voltage and frequency spectrum of the FM
wave.
10. Draw and explain the block diagram of SSB transmission. Prove that the
balanced modulator produces and output consisting of side band only,
with the carrier removed.
11. i) Describe the operation of dipole arrays.
ii) Explain the effects of antenna height.
12. Describe in detail sky wave propagation.
13. Explain in detail :Satellite communication.
14. Write short notes on:
i) Step by step switching
ii) Cross bar switching
iii) Electronic switching
15. Explain briefly i) Public telephone network
ii) Private telephone network
16. Describe in detail the action of FM receiver.
*******