Download GTU B.Tech 2020 Winter 7th Sem 2170913 Industrial Instrumentation Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020

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Subject Code:2170913
Subject Name:Industrial Instrumentation
Time:10:30 AM TO 12:30 PM
Instructions:

1. Attempt any FOUR questions out of EIGHT questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define following term.
(1)Static error (i1) Mechanical Hysteresis (ii1) Sensitivity (03 Marks)
(b) Explain transducer and inverse transducer with suitable examples. (04 Marks)

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(c) Explain construction and working principle of L.V.D.T. with its characteristics. (07 Marks)

Q.2 (a) Define synchros and state its application. (03 Marks)
(b) Differentiate Unbounded and bonded type strain gauge. (04 Marks)
(c) Why temperature compensation is required for strain gauge? Explain any one method in detailed for temperature compensation. (07 Marks)

Q.3 (a) Explain Black Body concept for very high temperature measurements. (03 Marks)

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(b) Write and Explain laws of thermocouples. (04 Marks)
(c) Describe with neat diagram how disappearing filament type optical pyrometer can measure very high temperature. (07 Marks)

Q.4 (a) Define following term.
(1)See back effect (i1) Piezoelectric effect (iii) Piezo-resistive effect (03 Marks)
(b) Explain RTD with diagram, principle, merits and demerits. (04 Marks)

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(c) Describe the construction, theory and working principle of thermocouples:State different types of compensations used. (07 Marks)

Q.5 (a) State different type of load cell used for force measurement and also state its advantages. (03 Marks)
(b) Describe the working principle of Hall effect transducer and state its application. (04 Marks)
(c) With a neat sketch explain the construction and working of Rotameter. (07 Marks)

Q.6 (a) Explain how capacitive used for Linear displacement. (03 Marks)

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(b) Derive output equation of Piezoelectric transducer. (04 Marks)
(c) With a neat sketch explain the construction and working of Pirani gauge. (07 Marks)

Q.8 (a) Explain the different components of an Analog Data Acquisition System. (04 Marks)
(b) Write short note on modern digital data acquisition system. (07 Marks)

Q.8 (a) Explain types of instrumentation systems. (03 Marks)

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(b) Explain the operation of Sample and Hold circuit in brief. (04 Marks)
(c) Explain measurement of liquid level using capacitive transducer. (07 Marks)

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Date:19/01/2021
Total Marks: 56

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