Download GTU BE/B.Tech 2018 Winter 3rd Sem Old 130903 Electrical And Electronics Measuring Instruments Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 3rd Sem Old 130903 Electrical And Electronics Measuring Instruments Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?III (OLD) EXAMINATION ? WINTER 2018
Subject Code:130903 Date:10/12/2018

Subject Name:Electrical And Electronics Measuring Instruments

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) Define the terms.1.Accuracy 2.Precision 3.Sensitivity 4.Resolution 07
(b) Discuss Extension of range of instruments.

07

Q.2 (a) Explain construction working of D?Arsnaval galvanometer. Also derive its
torque equation

07
(b) Explain voltage standards. 07
OR
(b) Discuss the classification of analog instruments. 07

Q.3 (a) With a neat diagram explain 1).construction 2).working, 3).torque equation and
4). Advantages and disadvantages of a PMMC instruments.
07
(b) Compare moving coil and moving iron instruments. 07
OR
Q.3 (a) Explain the construction of multi range ammeter. 07
(b) Explain construction and working principle of thermocouple instruments. 07

Q.4 (a) Explain the construction and working principle of single phase induction type
energy meter.
07
(b) Explain the two watt-meter method for 3-phase power measurement for balanced
load.
07
OR
Q.4 (a) Explain the need of measuring phase sequence and also explain types of phase
sequence indicator.
07
(b) Discuss applications of DC potentiometer.

07

Q.5 (a) Write a short note on digital tachometer

07
(b) Explain with a neat diagram working of a Synchroscope

07
OR
Q.5 (a) Explain the circuit diagram and operation of an Electronic Voltmeter using a
differential amplifier

07
(b) Explain the principle of operation of a power factor meter.

07

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