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1997 Course Consumer Electronics

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Total No. of Questions : 10] P1454 [Total No. of Pages : 2 [3764]-1034 B.E. (E & TC) CONSUMER ELECTRONICS (1997 Course) (404189) Time : 3 Hours] [Max. Marks : 100 Instructions to candidates : 1) Answer 3 questions from each section. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 5) Assume suitable data, if necessary. SECTION - I Q1) a) What is magnetic tape recording? Explain basic principle of it. [6] b) Draw tape transport mechanism and explain its recording and playback mode in detail. [10] Q2) a) What are the various techniques of optical recording? Explain any one method with suitable diagram. [9] b) Enlist advantages and disadvantages of digital sound recording over analog sound recording. [7] Q3) a) What is stereophony? What are its limitations? How these can be overcome in quadraphony? [9] b) Explain requirement of PA system. Draw its block diagram. Explain each [7] block in detail. Q4) a) Explain following terms in relation to Television. i) Aspect ratio. ii) Persistance of vision. iii) Kell factor iv) Colour burst. [8] P.T.O. b) Draw composite video signal. What are the components of CVS signal? Explain in detail. [8] Q5) a) Enlist CCIR-625-B standards. b) Compare the PAL, NTSC and SECAM systems. [6] [12] SECTION - II Q6) a) With the help of neat block diagram, and waveform explain colour TV Receiver. [10] b) Explain the basic principle used in the vidicon camera tube with diagram. [6] Q7) a) Draw block diagram of capstan servo system. Explain each block in it. [6] b) Explain CCTV system in brief. [6] c) What is high defination television? Explain compatibility considerations of HDTV with conventional TV system. [6] Q8) a) Draw block diagram of mobile phone. Explain each block in brief. [8] b) Enlist the product design features in detail. Q9) a) What do you mean by JPEG? Explain its algorithm in detail. b) What is WWW? Explain in brief. Q10) Write short note on (Any Four) : [10] [6] [16] a) Betamax. b) Fax Machine. c) LCD Display. d) ENG. e) MPEG. f) Solar panel. rrrr [3764]-1034 [8] -2-

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