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2003 Course Audio-Video Eng. (Elective II)

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Total No. of Questions : 12] P1350 [Total No. of Pages : 3 [3764] - 236 B.E. (E & TC) AUDIO - VIDEO ENGINEERING (2003 Course) (Elective - II) (404225) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer three questions from section - I and three questions from section - II. 2) Answers to the two sections should be written in separate books. 3) 4) Neat diagrams must be drawn wherever necessary. Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. Assume suitable data, if necessary. 5) Q1) a) b) Q2) a) b) A c) Q3) a) b) Q4) a) b) Explain basic principle of a colour camera. What are different characteristics of camera. [8] With reference to Television system, in short explain the following terms. i) Contrast. ii) Saturation. iii) Colour temperature. iv) Aspect ratio. v) Luminance. [10] OR Explain working and construction of a delta gun picture tube. Why this type of tube has been superseded by PIL picture tube. [8] What are advantages of using AM for video signals, AMSC for colour signals and FM for audio signals in TV system. [5] Compare various display devices for Television monitor. [5] Explain block diagram of Low level modulation TV transmitter. [8] [8] Compare NTSC,PAL and SECAM system. OR Explain use of wobbuloscope and TV pattern generator in TV alignment and fault finding. [8] With neat block diagram explain PAL receiver. [8] P.T.O.

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