Download GTU BE/B.Tech 2018 Winter 7th Sem Old 170904 Industrial Instrumentation Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem Old 170904 Industrial Instrumentation Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 170904 Date: 29/11/2018

Subject Name: Industrial Instrumentation

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Explain the following characteristics of a Transducer.
(i) Linearity (ii) Resolution (iii) Sensitivity (iv) Threshold (v) Repeatability
(vi) Calibration (vii) Hysteresis.
07
(b) What is Transducer? Explain factors influencing the choice of transducers. 07

Q.2 (a) What is Gauge factor and Piezo resistive effect? Derive the expression for that in
terms of passion?s ratio.
07
(b) Write short note on Hall effect transducer. 07
OR
(b) Differentiate unbonded and bonded type strain gauge. How is the temperature
compensation carried out using strain gauge in a bridge circuit?
07

Q.3 (a) Explain the construction and working of LVDT used for measurement of
displacement.
07
(b) Explain construction and working principle of Thermocouple. Also explain Cold
junction compensation.
07
OR
Q.3 (a) State different methods for torque measurement.Explain any one in detailed. 07
(b) State different type of Load cell used for force measurement. Explain any one in
detail.
07

Q.4 (a) Explain construction and working of Piezoelectric pressure transducer. 07
(b) Write short note on Hot wire anemometer. 07
OR
Q.4 (a) Explain how inductive transducer used for Linear measurement and Capacitive
transducer used for angular displacement.
07
(b) Describe with neat sketch the construction and working of Rotameter. State
Advantages and Disadvantages of Rotameter.
07

Q.5 (a) Write short note on Venturi tube.. 07
(b) Write short technical note on X-Y Recorders. 07
OR

Q.5 (a) Explain n-Channel Data Acquisition System with block diagram. 07
(b) What is sample and hold circuit? Why it is needed? Explain with circuit diagram. 07

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