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Code : 9EC-34 Register Number Semester Diploma Examination, ApriVMay-2016
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ELECTRONIC MEASUREMENTS & INSTRUMENTATION
I Max. Marks : 100
SECTION
each of the remaining Sections.
-I
lo
(i) Section - I is compulsory. (ii) Answer any two full questions from
g.
Time:3Hoursl Note:
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l. (a) Fill in the blanks (i) An example of recording instruments is (ii) is an example of digital transducer. (iii) Ring counter & shift register are used in
f,
SECTION _ II Explain with block diagram working of electronic measurement system.
7
Explain primary and secondary standards.
4
Define the terms precision and accuracy of an instrument.
4
(a)
Explain the different tlpes of errors in measurements.
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3.
Write a note on Maxwell Bridge.
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.2. (a) O) (c)
Maxwell's Bridge is used for the measurement of unknown ---------------An A.C. volfineter which can be used for all types of waveforms is
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tlpe DVM.
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:
(iv)
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III
(b)
What are indic'ating integrating and recording insiruments ?
(c)
A milliammeter of 2.5 Q
6 3
resistance reads upto 100 mAs. What resistance is required to e,nable it to be used as
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(a) Explain the working principle of pMMC meter. (b) Write the schematic of (i) MultirangeVolhneter (ii) MultirangeAmmeter
4.
Define sensitivity of a vorfineter. what is its unit ?
SECTION _
(a) (b) (c)
Explain the block diagram description of CRO. List the applications ofDigitar Storage osciloscope. Explain the working principre of duar trace oscilloscope.
7
3
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5.
III
3
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(c)
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Using a basic PMMC meter
(a) Explain the block diagram description of Digital storage oscilloscope. (b) Explain the working of a function generator.
8
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6.
(a)
4
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.
SECTION
-
IV :
I
.
(b)
List the steps in calibrating a shunt tlpe ohmmeter. List the advantages Electronic voltmeter.
(c)
Explain the operation of a RX meter.
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8.
6
List the advantages and disadvantages of thermocouple. Explail the principle of operation of capacitive hansducers.
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o) (c)
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7.
7
6
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6
(a) List,the advantages of Digital meters. (b) Explain how an erectronic counter is used as a totariser. (c) write the important steps for'gen eralizedtrciubleshooting procedure.
,
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9_.
(a) (b)
Explain the working of Ramp type Define Grounding
(c)
Explain the precautions
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10.
instruments.
DVM.
to be taken to
,
,
5 4 )
6
:
8 2
prevent dam4ge
to
measuring
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