07A70403 Television Engineering B.Tech Question Paper : scce.ac.in

Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Department : Electronics And Communication Engineering
Subject Code/Name : 07A70403/TELEVISION ENGINEERING
Year/Sem : IV/I
Website : scce.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4938-07A70403-TELEVISIONENGINEERING.pdf

Television Engineering Question Paper :

Code No: 07A70403
R07 Set No. 2
IV B.Tech I Semester Examinations,December 2011

Related : Sree Chaitanya College Of Engineering 07A70404 Cellular & Mobile Communications B.Tech Question Paper : www.pdfquestion.in/4937.html

Electronics And Communication Engineering
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions :
All Questions carry equal marks :
1. (a) Explain the block diagram of a video amplier in a Black and White TV receiver.
(b) What are the factors that influence the choice of IF in TV receivers. [10+6]
2. (a) Draw a block diagram of a TV tuner and explain the functions of each block.
(b) Write short notes on high pass filter and trap circuits in VHF tuner. [10+6]

3. (a) Explain the working of YAGI-UDA Antenna for TV receivers.
(b) Write short notes on video signal quantization. [10+6]
4. (a) How many lines are blanked out in each frame in case of 625 line system? Explain.
(b) Calculate vertical blanking signals for 625 line system. [8+8]

5. Write about the following:
(a) Ghost Image.
(b) Air plane flutter.
(c) Leading ghost. [5+5+6]

6. (a) With a neat sketch, explain the operation of RGB matrixing and drive amplifier circuit.
(b) Write short notes on Burst Pulse Blanking. [10+6]

7. Write about monochrome TV standards for a 525 lines system and compare it with a 625 line system. [16]
8. Discuss the processing of video signal of the picture to set composite video signal in detail. [16]

Code No: 07A70403
R07 Set No. 4
1. Draw the diagram of picture tube which employs electrostatic focusing and electromagnetic deflection and explain its working. [16]
2. Draw the block diagram of monochrome TV camera and explain each block. [16]

3. (a) List the advantages of AGC.
(b) Explain the slope detection of the FM signal. [6+10]

4. Explain how integrating and dierentiating circuits are employed to separate vertical and horizontal sync pulses. Draw the typical circuit and explain its operation. Indicate how a noise gate can be added to it. [16]

5. (a) Describe briefly the factors that influence the choice of picture IF= 38.9MHz and sound IF=33.4MHz in the 625-B (CCIR) television system.
(b) Write short notes on raster circuits. [8+8]

6. (a) With a neat sketch, explain the operation of Burst phase discriminator circuit in detail.
(b) Write short notes on colour saturation control. [10+6]
7. Explain the necessity of the vertical sync of monochrome signal with relevant gures. [16]

8. Draw the block diagram of a 10 Kw VHF Transmeter using high level modulation and explain the function of each block and also compare the performance of it with low level modulation Transmitter. [16]

IV B.Tech I Semester Examinations,December 2011 :
Television Engineering :
1. Write the principle of interlaced scanning and explain how icker can be eliminated in interlaced scanning? [16]

2. Write about the following with reference to picture tube.
(a) Beam velocity.
(b) High voltage focusing.
(c) Low voltage focusing. [5+5+6]

3. With the suitable circuit diagrams describe how the delay line technique is employed to average U and V signals that enables separation of the two for feeding on to corresponding demodulators. [16]

4. (a) Draw the block diagram of the vertical deflection system in monochrome TV receiver and explain the functions of each block.
(b) Write short notes on Automatic Fine Tuning in PAL-D colour receiver. [8+8]

5. (a) Discuss briefly about the design requirements of the IF amplier section of monochrome and colour TV receivers.
(b) With a neat sketch explain briefly about the operation of Foster-Seely dis- criminator circuit.

6. (a) Discuss about complementary symmetry relaxation oscillator.
(b) Write short notes on Data Compression. [10+6]

7. Write about the followings :
(a) Aperture correction.
(b) Gamma correction.
(c) Shading correction. [5+5+6]
8. (a) Draw the block diagram of CIN diplexer and explain the function of each block.
(b) Explain how trunstile antenna is used for TV transmission.