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Posted By: Sra1 Member Level: Diamond Posted Date: 27 Jul 2008
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2008 Jawaharlal Nehru Technological University III B.Tech I Semester Supplimentary Examinations (INDUSTRIAL INSTRUMENTATION) Question paper
Set No 4
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III B.Tech I Semester Supplimentary Examinations, February 2008
INDUSTRIAL INSTRUMENTATION
(Electronics & Instrumentation Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
* * * * *
1. What is interferometric comparator? Explain how interferometric comparator used for comparing the length of two gauge blocks? [16]
2. (a) How can a capacitive tacho be adopted to speed measurement? Describe with neat sketch?
(b) Discuss in detail device used for measuring translation and rotational velocity?[8+8]
3. What are load cells? Describe a magneto elastic load cell and strain gauge load cell. How do they differ in operations aspects? [16]
4. What is vacuum gauge? What are the different types of vacuum gauges? Explain. [16]
5. Explain the principle used in electromagnetic type flow meters with a circuit and Write its advantages and limitations. [16]
6. Write a short notes on air pressure balance method used for measurement of density. [16]
7. Derive the equation of radiation from the real body. [16]
8. Explain any 2 direct methods of level measurement. [16]
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