Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 7th Sem New 2170913 Industrial Instrumentation Departmental Elective Ii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2017
Subject Code: 2170913 Date:02/11/2017
Subject Name: Industrial Instrumentation(Departmental Elective - II)
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
1. Figures to the right indicate full marks.
Q.1 (a) What is electrical transducer? Explain its advantages. 03
(b) Differentiate between the following with suitable examples of each:
(i) Active and Passive Transducer. (ii) Primary and Secondary
Transducer
04
(c) Explain the following characteristics of a Transducer.
(i)Precision (ii) Resolution (iii) Sensitivity (iv) Threshold
(v) Repeatability (vi) Accuracy (vii) Hysteresis.
07
Q.2 (a) How is the temperature compensation carried out using strain gauge
in a bridge circuit?
03
(b) Describe the construction, working principle of Hall effect
transducers.
04
(c) What is Gauge factor? Derive the expression for Gauge factor in
terms of Poisson?s ratio.
07
OR
(c) Explain the construction and working of Piezoelectric transducer.
Also derive output equation.
07
Q.3 (a) Define Force and Name different types of electrical force sensors. 03
(b) Explain Proximity Torque sensor. 04
(c) Explain construction and working principle of L.V.D.T. with its
characteristics.
07
OR
Q.3 (a) Explain Construction and Working of Bourdon Tube. 03
(b) Explain Variable Dielectric Constant method for measurement of
Liquid level using capacitive transducer.
04
(c) Explain proving ring type load cell with its Advantages. 07
Q.4 (a) Define the following (i) Absolute Pressure (ii) Gauge Pressure (iii)
Differential Pressure.
03
(b) Explain Capacitive Pressure Transducer. 04
(c) With a neat sketch explain the construction and working of
Rotameter.
07
OR
Q.4 (a) Describe working principle of Electro-magnetic type flow meter,
with its merit and demerits.
03
(b) Explain flow measurement technique using Hot Wire Anemometer. 04
(c) Explain with neat sketch, how McLeod pressure gauge measure
vacuum pressure.
07
Q.5 (a) State Advantages and Disadvantages of Optical Pyrometer. 03
(b) Explain the operation of Sample and Hold circuit in brief. 04
(c) Explain RTD with diagram, construction, principle, working, merits, 07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2017
Subject Code: 2170913 Date:02/11/2017
Subject Name: Industrial Instrumentation(Departmental Elective - II)
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
1. Figures to the right indicate full marks.
Q.1 (a) What is electrical transducer? Explain its advantages. 03
(b) Differentiate between the following with suitable examples of each:
(i) Active and Passive Transducer. (ii) Primary and Secondary
Transducer
04
(c) Explain the following characteristics of a Transducer.
(i)Precision (ii) Resolution (iii) Sensitivity (iv) Threshold
(v) Repeatability (vi) Accuracy (vii) Hysteresis.
07
Q.2 (a) How is the temperature compensation carried out using strain gauge
in a bridge circuit?
03
(b) Describe the construction, working principle of Hall effect
transducers.
04
(c) What is Gauge factor? Derive the expression for Gauge factor in
terms of Poisson?s ratio.
07
OR
(c) Explain the construction and working of Piezoelectric transducer.
Also derive output equation.
07
Q.3 (a) Define Force and Name different types of electrical force sensors. 03
(b) Explain Proximity Torque sensor. 04
(c) Explain construction and working principle of L.V.D.T. with its
characteristics.
07
OR
Q.3 (a) Explain Construction and Working of Bourdon Tube. 03
(b) Explain Variable Dielectric Constant method for measurement of
Liquid level using capacitive transducer.
04
(c) Explain proving ring type load cell with its Advantages. 07
Q.4 (a) Define the following (i) Absolute Pressure (ii) Gauge Pressure (iii)
Differential Pressure.
03
(b) Explain Capacitive Pressure Transducer. 04
(c) With a neat sketch explain the construction and working of
Rotameter.
07
OR
Q.4 (a) Describe working principle of Electro-magnetic type flow meter,
with its merit and demerits.
03
(b) Explain flow measurement technique using Hot Wire Anemometer. 04
(c) Explain with neat sketch, how McLeod pressure gauge measure
vacuum pressure.
07
Q.5 (a) State Advantages and Disadvantages of Optical Pyrometer. 03
(b) Explain the operation of Sample and Hold circuit in brief. 04
(c) Explain RTD with diagram, construction, principle, working, merits, 07
2
demerits and application.
OR
Q.5 (a) Explain Advantages and Disadvantages of Thermistor. 03
(b) Explain the different components of an Analog Data Acquisition
System.
04
(c) Describe the construction, theory and working principle of
thermocouples. Describe different types of compensations used .
07
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This post was last modified on 20 February 2020