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Explain the advantages of stereophonic system.
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What are the differences between standard color TV and HD TV?
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What is the need and effects of different sync and blanking pulses?
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What are the different noise reduction techniques?
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What are the pros and cons of microwave oven?
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Why do we use stereophonic system while quadraphonic systems are available? Explain.
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What are the frequency ranges used in graphic equalizer and why?
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What makes a PA system Hi-Fi and what are the features of a synthesizer?
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What are the differences between Quadraphonic and stereophonic sound systems?
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Explain the detail working of PAL color TV receiver.
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Relate the head gap, tape speed and maximum recordable frequency in VCR.
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Explain the Working of VCR.
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What are the advantages and disadvantages of different memory devices?
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Differentiate among Cross-bar and Electronics Exchange.
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What is the need of telephone message recording and how is it achieved?
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Explain various features of remix controlled systems.
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What is the digital recording system, explain?
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Explain a circuit/block diagram for movement control in electronics toys.
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Write notes on electronics circuit used in refrigerators.
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Explain the working of Microwave Oven with detailed block diagram.
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Write notes on electronics circuit used in washing machines.
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Why sound signal is frequency modulated and picture signal is amplitude modulated in T.V.
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Define dynamic range and stereophonic effect. How dynamic range is improved.
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What are the essential requirements of a Hi-Fi systems?
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Explain how noise and distortion can be reduced in tape recorders.
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Explain the compatibility of color TV system with monochrome system.
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Explain in detail the working of a permanent magnet loudspeaker.
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If the gup width is 0.0254 mm and the tape speed is 25.4 cm/s. Find the maximum usable frequency.
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How many types of equalizers are there? Explain briefly.
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Explain the principle of magnetic secondary of reproduction. What is the relation between gap size, tape speed and frequency of the audio signal?
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Sketch composite video signal for at least two successive cycles and explain
(i) Extreme white level (1) Pedestal Height (iii) Blanking level
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Explain the working of Videocon camera tube with neat diagram.
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Sketch details of horizontal blanking and sync. pulses? Label on it (i) front porch (ii) back porch (iii) horizontal sync. pulses (iv) Active line periods. Explain
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Explain how the luminance and colour difference signals are developed from camera outputs. Why is it necessary to set Y-0.3R+0.59G+0.11B?
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Draw and explain block diagram of a PAL encoder. Explain how the composite colour signal is formed.
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Explain the construction and working principle of Trinitron and PIL colour picture tubes. Compare their features.
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Using neat block diagrams, explain the working principle of LCD TV
Also explain the performance comparison of LCD and Plasma T.V.
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Using neat block diagrams, explain the working principle of Plasma T.V.
Also explain the performance comparison of LCD and Plasma T.V.
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Explain the working principle of Cable TV.
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Explain the working principle of Cable TV.
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Explain the working principle of DTH system using neat.
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Explain digital cellular phone with functional block diagram.
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Why is FM signal is preferred than AM for sound signals transmission?
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What is vestigial sideband transmission and why it is used for transmission of TV picture signal.
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Define Hi-Fi. Mention the essential requirements for a system to be Hi-Fi and how it can be achieved in practice.
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What are the differences between standard colour TV and HD TV?
This question has 0 answers so far.
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What are the pros and cons of microwave oven?
This question has 0 answers so far.
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What are the differences between Quadraphonic and Stereophonic sound systems?
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What is the basic principle of Pre-amplifier
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What is the basic principle of Equalizer system.
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Explain the working principle of LCD TV and Plasma TV by using their block diagrams.
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Explain the working of Microwave over with detailed block diagram.
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What is the digital recording system, explain?
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Explain the following in respect of microphones. Sensitivity, Directivity, SNR,Frequency response, output impedance and Distortion.
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How digital sound is recorded on disc?
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Explain the construction and working of a Fux machine.
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Explain how composite video signal is detected.
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Explain the DTH.
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Explain the Fuzzy logic washing machine.
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Explain the RFID logic washing machine.
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Write short note on PAL TV receiver.
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Write short note on Trintron picture Tube.
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Explain directivity of microphone.
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Specify the utility of electrodynamic loudspeaker.
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Explain different pressure gradients in microphone.
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Differentiate between woofer and tweeter.
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Derive an expression for maximum usable frequency.
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What is the need of biasing in magnetic recording?
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Explain noise reduction system in magnetic tapes.
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What are advantages of keyed AGC?
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Why we use trap circuit in monochrome receivers?
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Calculate the peak value of resultant signal when saturated yellow coloris added to the luminance Y signal.
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Explain the principle, construction, working, advantages, disadvantages of crystal microphone.
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How is audio information stored on a CD retrieved in a CD player? Drawa simple diagram showing reflection of laser beam from a CD and conversion of information into binary data.
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Explain tone control in a Hi-Fi system and draw the circuit for bass and treble control.
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With the help of diagram, explain tape transport mechanism.
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With the help of a block diagram, explain the various controls in a T.V Receiver.
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With the help of a block diagram, explain the working of a monochromeT.V camera.
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Draw diagram of scanning and EHT circuits and explain there working.
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List major faults and their remedies in a T.V receiver.
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Explain construction and working of Trinitron picture tube.
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With the help of block diagram explain PAL TV receiver.
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Explain concept of convergence, purity and beam shifting.
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Explain color difference signal and its need in synchronous quadratic modulation.
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Discuss construction and working of HDTV.
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Discuss working of touch tone telephone set.
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Distinguish between LCD and Plasma TV.
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Discuss construction and working of FAX.
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What are the requirements of a good microphone?
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What is a compact disc? What are the advantages of an audio CD over a audio tape.
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Explain the terms: Scanning frequency, aspect ratio and blanking
pulses.
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What is a LEDTV? Discuss its advantages.
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Explain the concept of luminance, Hue and saturation.
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What is Composite Video signal? Explain.
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Discuss the working of following microphones (i) moving coil (ii)condenser (iii) carbon.
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Draw a neat diagram of tape transport mechanism of a tape recorder and explain its working.
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What is CCIR-B system? Give its features.
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Explain the trintron television tube with diagram
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What is cable transmission? Why is it needed?
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Discus the principle of operation, construction, feature and application of harm type speaker.
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Explain the features of a Hi-Fi system.
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Draw the diagram of vidicon camera tube. Explain the functions of various parts.
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Draw the block diagram of TV transmitter and explain its working.
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What is night vision camera? Explain.
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Draw the block diagram of color TV receiver and explain its working.
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Write short note on PAL system.
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Write short note on fuzzy logic washing machine.
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Explain the following : (a) HDTV
(b) RFID and bluetooth technology
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