JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II ELECTRONIC MEASUREMENTS Previous Question Paper (February - 2024 - R22)
Note: This question paper contains two parts A and B. Part-A for 10 marks, Part-B for 50 marks. Part-A is a compulsory question. Part-B consists of ten questions carrying 10 marks each. From each unit, there are two questions and the student should answer one of them.
Part A
List out few International standards.
Answer
Examples of international standards include the International System of Units (SI), ISO (International Organization for Standardization), and IEC (International Electrotechnical Commission).
What is an error?
Answer
An error is defined as the difference between the measured value of a quantity and its true or actual value.
Draw the circuit for Schering Bridge.
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Mention the applications of Wheatstone bridge.
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What do you mean by Period measurement?
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What is time base selector?
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Define the function of wave analyzer?
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What is the Significance of Spectrum Analyzer?
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List out the essential components of a CRT.
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Mention the advantages of LED display.
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Part B
Explain about static characteristics of measuring instrument.
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Analyze primary and secondary standards measurements.
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Explain in detail the construction of Multi-meter.
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Classify the Measurement Errors and explain them.
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Explain the operation of Q-meter and its applications.
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The four arms of a Hay’s alternating current bridge are arranged as follows: AB is a coil of unknown impedance; BC is a non-reactive resistor of 1200Ω; CD is a non-reactive resistor of 850Ω in series with a standard capacitor of 0.40μF; DA is non-reactive resistor of 1700Ω. If the supply frequency is 50Hz, determine the inductance and the resistance at the balanced condition.
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Discuss the principle of working of a Kelvin’s double bridge for measurement of unknown low resistances. Explain how the effects of contact resistance and resistance of leads are eliminated.
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Explain the Principle of operation Digital Frequency Meter with a neat sketch.
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Discuss the principle of working of Electronic Counter and its different modes.
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Draw the simple circuit of wave analyzer and explain its working. How to overcome limitations of it?
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Explain the Harmonic distortion analyzer with the help of suitable diagram.
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Explain the Principle and working of Harmonic distortion analyzers.
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Explain the information that is provided by the Spectrum analysis.
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What is sampling oscilloscope? Mention its advantages and disadvantages.
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Discuss briefly about Dot Matrix.
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Briefly explain the different types of storage oscilloscopes.
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Explain 14 segment display with neat diagram.
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