64242-mt----reliability Of Electronic Communication Systems

NR

Code No: 64242/MT

M.Tech. – II Semester Regular Examinations, September, 2008 RELIABILITY OF ELECTRONIC COMMUNICATION SYSTEMS (Communication Systems) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.

Explain the following a) Reliability function b) Use of Reliability data.

2.a) b)

Explain the determination of failure rate. Discuss the Weibill distribution and its application.

3.a) b)

Explain the series parallel system. Discuss the cut sets of reliability evaluation.

4.a) b)

Explain the concepts of network topology. Explain the overall reliability evolution.

5.

What is maintainability? maintainability.

6.

Explain the following a) Mean Down time b) Mission availability c) Replacement processes.

7.

Explain a) Quality and Reliability b) Reliability and Safety.

8.

Write short notes on a) Structure of value engg b) Prediction of human reliability.

Discuss

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the

factors

affecting

the