IV B.Tech II Semester Regular/Supplementary Examinations,May 2010 TELEMETRY AND TELECONTROL Common to Electronics And Control Engineering, Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
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1. What is meant by remote regulation.Explain about remote regulation with examples. [16] 2. Compare the Teleconrol System with other control system.
[16]
3. Define and explain the meaning of responsivity and quantum efficiency of photo diode and derive expressions for the same. [16]
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4. What are channel,circuit and half circuit in the context of satellite telemetry system? Discuss with suitable diagrams. [16]
5. How is companding technique useful in minimizing quantizing error for low level signals? What is the chord method of PCM coding? Explain with diagrams. [16]
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6. (a) Explain about voltage controlled oscillator with a Scheme Circuit. (b) Discuss about temperature to frequency converter with its characteristics? [8+8] 7. (a) What is the characteristic impedance of transmission of a transmission line? (b) Draw the circuit scheme of a coupling a carrier equipment with transmission line. Explain? [6+10]
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8. Explain about the difference between ‘cross-talk’ and intersymbol interference?[16]
1
Code No: R05421006
R05
Set No. 4
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IV B.Tech II Semester Regular/Supplementary Examinations,May 2010 TELEMETRY AND TELECONTROL Common to Electronics And Control Engineering, Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Write short notes on:
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(a) Pulse duration system (b) Pulse rate system (c) Pulse code system.
[5+5+6]
2. Explain the following:
(b) Quadrature FM detector
or
(a) Pulse averaging of descriminator
3. Explain about the banwidth distribution in a space craft transponder.
[8+8] [16]
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4. (a) What is the importance of power line carrier communication? (b) Explain briefly about voice transmission through PLCC?
[8+8]
5. What is meant by remote regulation.Explain about remote regulation with examples. [16] 6. (a) Explain synchronus an asynchronus time division multiplexing of PCM signals?
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(b) “Pulse modulation systems are not digital, where as, pulse-code modulation is” Justify? [8+8]
7. Compare the optical Telemetry with other telemetry systems.
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Give Merits and Demerits of Telecontrol methods 8. Merits and demerits of Telecontrol method ?????
2
[16] [16]
Code No: R05421006
Set No. 1
R05
1. Explain about delta modulation and demodulation?
and discuss the merits and demerits. 3. Explain the following:
[16]
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2. Write short note on:
in
IV B.Tech II Semester Regular/Supplementary Examinations,May 2010 TELEMETRY AND TELECONTROL Common to Electronics And Control Engineering, Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
4. (a) What are the differences between different transponder transmission techniques. (b) What are basic considerations where selecting the the MA(Multiple Access) for transmission of signal in satellite communications,explain them. [8+8] 5. (a) Describe the working of synchro transmitter and receiver telemetry system.
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(b) Draw a neat sketch and explain the operation of force balance current sytem. [8+8]
6. Draw the circuit diagram of pulse averaging detector. Sketch Explain the input FM-wave and different stages of waveforms in the pulse averaging detector. [16]
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7. (a) List out the signal apparatus used for Telecontrol installation. (b) Explain about the recorders used for recording binary data and explain how individual messages are distinguished from one another by Acoustic means/signal o/p. [16]
8. Explain about the structural scheme of a DFB LD? Draw the light output-current plot for DFBLD? [16] ?????
3
Code No: R05421006
R05
Set No. 3
2. (a) Give the detailed in formulation about PLL. (b) How PLL working as demodulator?
[16]
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1. Explain about TDM technique used in satellite communications.
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IV B.Tech II Semester Regular/Supplementary Examinations,May 2010 TELEMETRY AND TELECONTROL Common to Electronics And Control Engineering, Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
3. Describe the conditions for total internal reflection within a fibre.
[6+10]
[16]
or
4. Explain with suitable sketches the operation of a pulse duration system as used in telemetring system? How are time function pulses generated? [16] 5. (a) Explain how electrical telemetry system is classified and explain one system? (b) Explain hydraulic telemetry system? Mention merits and demerits?
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6. Briefly explain PCM de-commutation, processing and display?
[8+8] [16]
7. Explain briefly the following: (a) Telecontrol apparaters
(b) Telecontrol using information Theory. 8. Explain briefly the Telecontrol methods
[16] · 4. What are channel,circuit and half circuit in the context of satellite telemetry sys- .... 3. Describe the conditions for total internal reflection within a fibre. [16].
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R05. Set No. 2. III B.Tech I Semester Examinations,May 2011 · WEB TECHNOLOGIES · Information Technology ... that describes your college. The paragraph ...
(b) What is the necessity of heat treatment after carburizing? Explain. On what ... (b) What is the difference in heat treatment between 18% Ni and the 25% Nickel.
is subjected to a load of 200 kN, find the stresses developed in the two materials. ... Compare the values of max. and minimum hoop stresses for a cast steel ...
The cores of two identical transformers A and B carry alternating fluxes whose instantaneous values are (0.01 sin 314t)W and 0.012 (1.1 sin 628t+0.1 sin 1884t).
(a) Explain live node, E-node and dead node with an example. (b) Explain the method of reduction to solve TSP problem using Branch and · Bound. [8+8] · 3. (a) Prove that Prim's algorithm finds a minimum spanning tree. (b) Explain the single source sh
at 0.8 p.f. lagging and 15A at 0.6 p.f. lagging respectively, both expressed ... (b) A single-phase motor takes a current of 10 amps at a p.f. of 0.707 lagging.
If the tensile stress is not to exceed 17MPa, find the safe. u.d.l. which the beam can carry. Also find maximum compressive stress. Draw the sketch showing the ...
