Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU)) B-Tech 4th Semester (Fourth Semester) 2018-19 REC 403 Electronic Measurements Instrumentation Question Paper
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Printed Pages: Sub Code:REC-403
Paper Id: 131290 Roll No.
B.Tech.
(SEM IV) THEORY EXAMINATION 2018-19
Electronic Measurements& Instrumentation
Time: 3 Hours Total Marks: 70
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
2. Any special paper specific instruction.
SECTION A
1. Attempt all questions in brief. 2 x 7 = 14
a) Define random error and Gross error with suitable example.
b) What is the difference between analog and digital multimeter?
c) What is Quality factor and its importance in measurement?
d) How current is measured in the circuit using Ammeter?
e) What do you mean interpolation?
f) What is Instrument calibration?
g) What do you mean by Transducers and Inverse Transducers?
SECTION B
2. Attempt any three of the following: 7 x 3 = 21
a) Explain the working of a source follower electronic voltmeter. Describe how the
range of this voltmeter can be extended. Explain the use of zero adjustment and
calibration resistors.
b) Design amulti range FET Voltmeter circuit and explain its working with diagram.
c) Explain how inductance is measured using bridges? Explain any one?
d) Explain how frequency and phase are measured by CRO.
e) Describe the different modes of operation of Piezo-electric transducers with suitable
diagram.
SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
a) A batch of resistors each has a nominal resistance of 330? are to be tested and
classified as ? 5% and ?10 % components are specified at 25
0
C, and their temperature
coefficient is -300 ppm/
0
C. Calculate the maximum and minimum resistance for these
components at 100
0
C and Calculate the maximum and minimum absolute resistance
for each case.
b) Explain the construction of Series ohm meter and their application.
4. Attempt any one part of the following: 7 x 1 = 7
a) Draw and explain the block diagram of digital frequency meter system.
b) Draw and explain the working of digital multimeter.
5. Attempt any one part of the following: 7 x 1 = 7
a) How dielectric loss and unknown capacitance are measuredby Schering Bridge?
b) Draw and explain the working of Wheatstone bridge.
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| 22-May-2019 09:08:58 | 45.115.62.2
FirstRanker.com | 22-May-2019 09:08:58 | 45.115.62.2
Printed Pages: Sub Code:REC-403
Paper Id: 131290 Roll No.
B.Tech.
(SEM IV) THEORY EXAMINATION 2018-19
Electronic Measurements& Instrumentation
Time: 3 Hours Total Marks: 70
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
2. Any special paper specific instruction.
SECTION A
1. Attempt all questions in brief. 2 x 7 = 14
a) Define random error and Gross error with suitable example.
b) What is the difference between analog and digital multimeter?
c) What is Quality factor and its importance in measurement?
d) How current is measured in the circuit using Ammeter?
e) What do you mean interpolation?
f) What is Instrument calibration?
g) What do you mean by Transducers and Inverse Transducers?
SECTION B
2. Attempt any three of the following: 7 x 3 = 21
a) Explain the working of a source follower electronic voltmeter. Describe how the
range of this voltmeter can be extended. Explain the use of zero adjustment and
calibration resistors.
b) Design amulti range FET Voltmeter circuit and explain its working with diagram.
c) Explain how inductance is measured using bridges? Explain any one?
d) Explain how frequency and phase are measured by CRO.
e) Describe the different modes of operation of Piezo-electric transducers with suitable
diagram.
SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
a) A batch of resistors each has a nominal resistance of 330? are to be tested and
classified as ? 5% and ?10 % components are specified at 25
0
C, and their temperature
coefficient is -300 ppm/
0
C. Calculate the maximum and minimum resistance for these
components at 100
0
C and Calculate the maximum and minimum absolute resistance
for each case.
b) Explain the construction of Series ohm meter and their application.
4. Attempt any one part of the following: 7 x 1 = 7
a) Draw and explain the block diagram of digital frequency meter system.
b) Draw and explain the working of digital multimeter.
5. Attempt any one part of the following: 7 x 1 = 7
a) How dielectric loss and unknown capacitance are measuredby Schering Bridge?
b) Draw and explain the working of Wheatstone bridge.
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| 22-May-2019 09:08:58 | 45.115.62.2
FirstRanker.com | 22-May-2019 09:08:58 | 45.115.62.2
6. Attempt any one part of the following: 7 x 1 = 7
a) Why is delay line used in vertical section of an oscilloscope? Explain it in detail.
b) Explain DSO and its Application.
7. Attempt any one part of the following: 7 x 1 = 7
a) Explain the working procedure of X-Y Plotter with neat sketch.
b) Explain the working of AC voltmeter calibration.
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This post was last modified on 29 January 2020