Download GTU BE/B.Tech 2019 Winter 3rd Sem New 3134103 Sensor And Instrumentation Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 3134103 Sensor And Instrumentation Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 3134103 Date: 28/11/2019

Subject Name: Sensor and Instrumentation
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Marks

Q.1 (a) Differentiate between sensor and transducers. 03
(b) Define following term:
1) Sensitivity 2) Hysteresis 3) Precision 4) Accuracy


04
(c) Explain the principle of operations of LVDT with the help of neat
sketch and characteristics.
07
Q.2 (a) Define following terms:
1) Gauge Factor 2) CMRR 3) Span
03
(b) Explain the function block of the measurement system with neat
diagram.
04
(c) Describe the RTD and explain, how it can be used to measure
temperature.
07
OR
(c) Discuss about the construction of thermistor and its resistance
temperature characteristics.
07
Q.3 (a) What is smart sensor.Mention application of smart sensor. 03
(b) Explain Piezo resistive effect. 04
(c) What is Amplifier ? Describe the ideal characteristics of operational
amplifier
07
OR
Q.3 (a) Define noise. write the classification of noise. 03
(b) Explain seeback and Peltier effects 04
(c) Explain voltage follower . 07
Q.4 (a) Write application of tactile sensor. 03
(b) Explain the strain gauge. 04
(c) Explain heat transfer using thermal conduction. 07
OR
Q.4 (a) Define gyroscope. Write working principle of gyroscope. 03
(b) Explain Square wave Oscillator. 04
(c) Explain Zener diode with circuit Diagram and Draw the voltage ?
current characteristics.
07
Q.5 (a) Describe about DAQ? What is the need for DAQ? 03
(b) Explain two wire Data Transmission. 04
(c) Explain how the fiber optic sensor work and list out its advantages. 07
OR

Q.5 (a) What is the purpose of the sample and hold circuit? 03
(b) Explain null balance bridge circuit . 04
(c) Explain successive ? Approximation type A-D converter. 07

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