SHRI ANGALAMMAN COLLEGE OF ENGINEERING & TECHNOLOGY
(An ISO 9001:2008 Certified Institution)
SIRUGANOOR,TRICHY-621105.
DEPARTMENT OF ELECTRONICS AND INSTRUMENTATION
EI 1301- ELECTRONIC INSTRUMENTATION
UNIT-1
PART-A (2mark Questions)
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List the important requirements of shunt in dc ammeter.
what is the principle of Q-meter
Define Q-meter
How vector voltmeters differ from A.C/D.C voltmeters?
Explain how a multi meter is used for measuring different ranges of voltage
What are the requirements of shunt resistors connected in meters?
Where can we use decibels?
Define current ratio?
What is a vector voltmeter?
Write the components of a vector voltmeter?
List the application of vector voltmeter?
What are the general requirements of a shunt?
What is meant by full scale deflection current?
What are the factors in choosing an analog voltmeter?
What is meant by basic meter?
What is the main purpose of the multiplier?
State the prime advantage of peak responding voltmeter?
What is a power meter?
What is a vector impedance meter?
What is a true RMS responding voltmeter?
What are the sources of error in a Q-meter?
Define Aryton shunt or universal shunt?
Define’ Q’?
Draw the basic circuit for a Q-meter?
Define LCR?
PART-B (16mark Questions)
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Explain Q meter and derive the relation for Q.
with neat diagram explain vector impedance meter
Explain vector voltmeter with neat block diagram
with necessary diagrams explain the multi meter
5. Explain DC ammeters and DC voltmeters
6. Elaborate the principle and working of True RMS responding voltmeter with neat sketch
7. Explain how a single instrument is used for measuring different components with relevant
diagram.
8. Elaborate the Q-meter with neat sketch and mention its application
9. Explain the principle and construction of MI type instruments with neat diagram
10. Explain the principle and construction of PMMC type instruments with neat diagram
11. Explain the principle and construction of electrodynamometer type instruments with neat diagram
12. Explain the DC voltmeter and ammeter with necessary sketch
13. Explain the AC voltmeter and ammeter with necessary sketch
14. Explain the principle and construction of power meter with neat diagram
15. Explain component measuring instrument with neat circuit diagram
UNIT-2
PART-A (2mark Questions)
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What is the difference b/w a wave analyzer and a harmonic distortion analyzer?
State any one application of sweep frequency generator
Write a typical application for spectrum analyzer
Sketch a typical square wave generator.
Write the major components used in function generator
What are the applications of wave analyzer?
Sketch the block diagram of function generator
What are the drawbacks of resonant wave analyzer?
Draw the basic block diagram of sweep frequency spectrum analyzer
What is meant by linearity?
Define pulse drop or sag?
What is meant by settling time?
What is pulse repetition rate?
What are the advantages of wide band sweep generator
What is ringing?
Write the advantages of audio frequency signal generator?
What is pulse pre shoot?
What is meant by harmonic distortion?
What are the advantages of harmonic distortion analyzer?
What is spectrum analyzer?
What is the principle of heterodyne wave analyzer?
Define wave analyzer and name its types?
Define rise time and fall time?
What are the requirements of pulse generator?
Define duty cycle?
What is signal generator?
What are the requirements of signal generator?
What are the advantages of standard signal generator?
PART-B (16mark Questions)
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Explain the principle of sine wave generator.
with neat diagrams explain pulse and square wave generators
Explain harmonic distortion analyzer
With neat diagrams explain spectrum analyzer
Explain audio frequency signal generation and function generator
Explain the square wave generator with neat sketch
Discuss on wave analyzer and mention its application
Explain principle and working of sweep generator
Explain the frequency synthesized sine wave generator with neat sketch
Elaborate the principle and working of function generator with neat sketch
Elaborate the principle and working of noise generator with neat sketch
Elaborate the principle and working of audio frequency generator with neat sketch
Mention the application of spectrum analyzer.
UNIT-3
PART-A (2mark Questions)
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What is the need for delay line in CRO
compare Dual beam CRO and Dual trace CRO
How sampling oscilloscope differ from storage oscilloscope?
Write the need for delay line
Enumerate any two advantage of digital CRO over storage oscilloscope
Mention the demerits of General purpose CRO
Name the various components used in CRT
Write down the different types of special purpose oscilloscope
Define coherent and incoherent sampling?
Define the technique used in sampling oscilloscope?
What are graticules?
What is meant by Aluminizing a CRT and Explain its advantage?
What is scan angle?
Describe about the classification of oscilloscope?
Explain the classification of CRT?
Name the components of a time domain oscilloscope?
Define CRO
Write the different types of probes available?
State some applications of CRO
What are the major components of a storage oscilloscope?
What are the demerits of CRO when compared with storage oscilloscope?
Draw the block diagram of a digital storage oscilloscope?
Define sampling rate in a digital storage oscilloscope?
State the advantages and limitations of digital storage oscilloscope?
PART-B (16mark Questions)
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Explain the principle of general purpose of oscilloscope with neat block diagrams
With neat diagrams explain multiple trace on CRO
With neat diagrams explain digital CRO and compare with analog storage oscilloscope
With neat diagrams explain the principle of analog storage oscilloscope
Draw and explain the sampling oscilloscope in detail
Explain the Screens for CRT graticules
Discuss on oscilloscope techniques
Explain principle and working of Horizontal deflection system with neat sketch
Explain the delay line CRO.
Elaborate the principle and working of dual beam and dual trace oscilloscope with neat sketch
Elaborate the principle and working of special oscilloscopes
Explain principle and working of vertical deflection system with neat sketch
Explain the various probes in CRO.
UNIT-4
PART-A (2mark Questions)
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Define the resolution and sensitivity of digital voltmeter.
What are the advantages of microprocessor based instruments?
write the principle of time interval measurement
List any two important features of IEEE 488 bus.
What are the disadvantages of digital voltmeter when compared to analog?
Explain the principle involved in digital frequency meter
Mention the various types of digital voltmeter
What are the advantages of digital voltmeter?
What is sample and Hold circuit?
Draw the simple sample and Hold circuit?
Draw the output waveform of a sample and hold circuit?
State the advantage of successive approximation method?
State the drawbacks of Ramp-type DVM?
State the advantage of dual slope integrating type DVM over ramp type DVM?
What is automatic polarity?
Name the attenuation techniques used for high frequency measurement?
Explain the principle of digital frequency meter?
Explain the principle of successive approximation type DVM?
Explain the principle of dual slope DVM?
Explain the principle of ramp type DVM?
What is the purpose of IEEE 488 bus?
What is ratio and multiple ratio measurement?
What is Digital panel Meter (DPM)?
PART-B (16mark Questions)
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Explain the principle of digital method for measuring the frequency measurement.
With neat diagrams explain flip flop method of frequency measurement.
with neat diagrams explain principle of period measurement
With neat diagrams explain the principle of time interval measurement.
Draw and explain the measurement of phase difference
Explain how the pulse width is measured using digital technique with clear diagram
Discuss the microprocessor based multi meter with neat sketch
Explain the principle and working of digital multimeter with neat sketch
Explain the digital panel meter with neat sketch
Elaborate the principle and working of any one type of digital voltmeter with neat sketch
Write short notes on IEEE 488l bus
Explain principle and working of Automatic polarity indication, automatic ranging and auto
zeroing in digital meter.
13. With neat diagram explain Ramp type digital voltmeter.
14. Explain integrating and dual slope integrating type DVM
15. Explain successive approximation type DVM.
UNIT-5
PART-A (2mark Questions)
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Compare the common anode and common cathode 7 segment displays
State the advantages of magnetic recorders over other recorders
What are data loggers?
How to overcome EMI effects?
Mention the major components used in magnetic tape recorder
What are the merits of Bar graph display?
Write down the merits of LED in display system
What are the demerits of LCD?
Difference b/w cold cathode and incandescent display?
Difference b/w X-Y and digital recorders.
Difference b/w LCD and LED
Difference b/w seven segment and dot matrix display?
Difference b/w single point and multipoint recorders?
Define multiplexed display?
Explain cold cathode display?
State the primary function of magnetic recorders?
State the principle of magnetic recorders?
What is the principle of nixie tube?
Name the methods of recording?
What is data logger and mention its application?
Explain paper drive and chart speed mechanism?
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What is Non return zero?
What is the application of X-Y recorders?
What are the advantages of digital data recording?
State the principle of FM recording?
Classify the recorders used in instruments?
What are the basic components present in magnetic recorders?
State the purpose of play back amplifier in digital recorder?
What are the advantages of LCD?
What is a Recorder?
Define Electromagnetic interference
Write the classification of interference signal
Define interference.
PART-B (16mark Questions)
1. Explain the seven segment display with neat diagram.
2. Describe the principle and working of dot matrix display with clear sketch
3. Write short notes on:
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Electromagnetic interference
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Earth loops
4. Explain about Bar graph display.
5. Elaborate the principle and working of magnetic tape recorder with neat sketch.
6. Elaborate the principle and working of X-Y recorder with neat sketch.
7. Explain the digital recording with neat diagram.
8. Discuss on data logger and mention its advantages.
9. Write a detailed note on Electrostatic and electromagnetic interference and earth loops?
10. Explain FM and PDM recording?