Download JNTUA B.Tech 4-2 R13 2018 July Supple 13A02801 Instrumentation Question Paper

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Code: 13A02801

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B.Tech IV Year II Semester (R13) Advanced Supplementary Examinations July 2018

INSTRUMENTATION

(Electrical and Electronics Engineering)

Time: 3 hours

Max. Marks: 70

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PART - A

(Compulsory Question)

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1. Answer the following: (10 X 02 = 20 Marks)
   1. List out the static characteristics in a measurement system.
   2. Mention the statistical methods used in analysis of random errors.

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   3. Draw the block diagram of DAS.
   4. Write any two applications of frequency modulation.
   5. Define Q of a coil.
   6. Draw the block diagram of heterodyne wave analyzer.
   7. Define gauge factor.

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   8. Classify the transducers.
   9. Mention the sensors used for measurement of temperature.
   10. Define gauge sensitivity.

PART - B

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(Answer all five units, 5 X 10 = 50 Marks)

UNIT - I

2. Derive an expression to obtain the output equation of the second order system for under damped system when the step input is applied.

   OR

   Discuss about the errors in measurement system.

3. List out the standard test signals and represent them in terms of time domain and frequency domain.

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UNIT - II

4. Describe the principle and working of pulse code modulation (PCM) with neat wave forms.

   OR

   Draw the block diagram of frequency division multiplexing and explain each block in it.

UNIT - III

6. Draw the block diagram of vector impedance meter and explain each block in it.

   OR

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   1. Write the principle and working of spectrum analyzer.
   2. Write the applications of wave analyzers.

UNIT - IV

8. Explain the principle and working of LVDT transducer.

   OR

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   Explain the principle and working of piezoelectric transducers.

UNIT - V

10. Describe the working of seismic sensor for measurement of angular velocity.

    OR

    1. Write short notes on pressure sensors.
    2. Write the principle and working of thermocouples.

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