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

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Code: 13A02801

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B.Tech IV Year II Semester (R13) Regular & Supplementary Examinations April 2018

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INSTRUMENTATION

(Electrical and Electronics Engineering)

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Time: 3 hours

Max. Marks: 70

PART - A

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(Compulsory Question)

1. Answer the following: (10 X 02 = 20 Marks)

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1. (a) List out the errors in measurement.


2. (b) Define linearity and resolution.



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3. (c) Write the differences between phase modulation and frequency modulation.


4. (d) Mention the applications of multiplexing.


5. (e) Write the principle of frequency selective analyzer.

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6. (f) Draw the block diagram of successive approximation DVM.


7. (g) List the characteristics to be considered while selecting a transducer.



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8. (h) Write the principle of thermistor.


9. (i) Define absolute pressure and differential pressure.


10. (j) Write the principle of ultra sonic flow sensor.

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PART - B

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

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UNIT - I

2. Describe the static characteristics in a measurement system.

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OR

3. (a) Write short notes on statistical analysis of errors.

(b) Write about the standard signals and their representation.

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UNIT - II

4. Describe the principle and working of pulse amplitude modulation with the help of wave forms.

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OR

5. Explain the block diagram of Time division multiplexing and explain each block in it.

UNIT - III

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6. Describe the principle and working of total harmonic distortion analyzer.

OR

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7. (a) Explain the principle and working of true RMS voltmeter.

(b) Describe the working of ramp type DVM.

UNIT - IV

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8. (a) Describe the principle and working of capacitive transducer.

(b) Write short notes on strain gauges.

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OR

9. Describe the principle and working of thermocouples.

UNIT - V

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10. Describe the principle and working of any one pressure sensor.

OR

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11. Describe the principle and working of level sensor for measurement of liquid level.