Download GTU B.Tech 2020 Summer 4th Sem 2141704 Measurement And Instruments Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 4th Sem 2141704 Measurement And Instruments Previous Question Paper

Seat No.: ________
Enrolment No.___________


GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER? IV EXAMINATION ? SUMMER 2020
Subject Code: 2141704 Date:27/10/2020
Subject Name: MEASUREMENT & 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.



MARKS
Q.1 (a) Differentiate recording VS integrating instruments
03

(b) Draw and describe basic circuit of analog indication
04
instruments and digital indication instruments.

(c) What is loading effect? How it will eliminates from real
07
measurement? Shortly describe it.


Q.2 (a) How TRUE RMS meter works? Describe it in brief.
03

(b) List the step to obtain lissajous patterns on CRO
04

(c) Explain the operation of Digital to Analog conversion of
07
measured electrical quantity.


OR


(c) Explain the operation of Analog to Digital conversion of
07
measured electrical quantity.
Q.3 (a) Describe the function of Cathode Ray Tube with neat
03
diagram.

(b) Illustrate the working of attenuation CRO probe.
04

(c) Draw and describe Digital Storage Oscilloscope in
07
details.


OR

Q.3 (a) How does power scope differ than DSO? Brief it.
03

(b) How do you measure unknown frequency using CRO?
04
Desc

(c) Give
ribe its procedure with final calculation
explanation why we carried out harmonic frequency
07
analysis? Describe one of the method for it.
Q.4 (a) What are the resistive components in Electrical DC and
03
AC circuit? Give suitable explanation.

(b) Draw and describe Kelvin double bridge. List its
04
limitation.

(c) Describe with neat sketch electrodynamics single phase
07
watt meter.

OR

Q.4 (a) Describe the color code which used to identify capacitor.
03

(b) Which bridges are used to measure unknown inductance?
04
Describe one with its circuit diagram.

(c) Draw and describe Schering bridge circuit to find cable
07
fault in dtails.
Q.5 (a) What is Q-factor? Define it.
03
1

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(b) Illustrate contraction, working and application of Current
04


transformer

(c) Draw and describe working, schematic and application of
07
function generator in detail


OR
Q.5 (a) How do you measure power factor? Describe it.
03
(b) Illustrate contraction, working and application of Potential
04
Transformer
(c) Draw and describe working, schematic and application of
07
sine wave Oscillator in detail

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