University of Mumbai 2007-4th Sem B.E Electrical and Electronics Engineering Electronics Instruments & Instrumentation - Question Paper
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(Y (3 Hours) [Total Marks: 100
N.B.: (1) Question No. 1 is compulsory.
(2) Attempt any four questions out of remaining six questions.
(3) Figures to the right indicate full marks. 1 C], ayvyf* f*
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Q.1. Solve anyFOUR1 of the following: n4/vl*'X'**AS"v\ lyj I **
a) What are advantages of Electronic Voltmeter over Conventional Voltmeters? 05
b) What is Delay Line? Why it is included in CRO? 05
c) Explain Peak Reading & Average Reading voltmeters. 05
d) Write Classification of Transducers; Give an Example of each type. 05
e) What is Thermistor? Explain Construction and write applications of it. 05
Q.2.a) Explain Ramp type Digital Voltmeter, Write advantages and disadvantages. 10
b) Descrbe working of Dual Slope Integrating Digital Voltmeter with CircuitfBlock 10 diagram
Q.3.a) Write operation of Analog Electronic Frequency meter, hence write Limitations 10 of it.
b) How Lissajoug patterns are used for Measurement of Phase and Frequency? 10 Draw Lissajous patterns for different frequency ratios
Q.4 a) Differentiate between Dual Trace and Dual beam Oscilloscopes 10
b) State requirements of good laboratory type signal generator Explain Audio 10 Frequency Signal Generator.
Q5 a) Explain response of Step input to Second order system. Denve expression for 10 it.
b) Explain Construction and Working of RTD. Compare RTD and Thermocouple 10
Q6. a) List Pressure transducers, hence Explain use of Piezoelectric transducer for 10 Pressjre measurement b) What is order of a filter? Explain Second order Low Pass Butterworth filter, 10 Derive transfer function for it.
Q7 Write short notes on (Any TWO); 20
i) Function Generator
ii) Intensity and Velocity Modulation
iii) Photoelectric Transducers
iv) Digital Phase Meter
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