Anna University
MEASUREMENTS AND INSTRUMENTATION Important Questions
Unit-I
1. Describe the functional elements of an instrument with its block diagram.
2. Explain in detail about the different types of errors.
3. Explain in detail about static characteristics of an instrument system.
4. Explain in detail about dynamic characteristics.
5. Define standard and explain different types of standard.
6. Write in detail about statistical analysis.
UNIT-2
1. Sketch the basic circuit and explain the constructional details of 1 phase induction type energy meter.
2. Describe the constructional details of 1 phase electrodynamometer type of power factor meter.
3. Explain the function of a 3 phase energy meter and wattmeter.
4. Describe how do you determine the B-H curve to measure the iron loss?
5. With a block diagram explain the working of digital frequency meter.
UNIT-3
1. Describe basic principle operation of a D.C potentiometer.
2. Give the application of A.C potentiometer.
3. Explain in detail about laboratory type D.C potentiometer.
4. Explain any one bridge for measuring inductance.
5. Explain any one bridge for measuring capacitance.
6. How do measure multiple earth and earth looping?
UNIT-4
1. Explain the block diagram of oscilloscope and describe the observation of waveform in CRO.
2. Describe the basic components of CRT.
3. Explain the frequency modulation recording technique of magnetic tape recorder.
4. Describe the important stages that make up a tape recorder.
5. Explain theory of working of LED and LCD.
UNIT-5
1. Draw and explain the block diagram of data acquisition system.
2. Describe one method of D/A conversion.
3. Describe the constructional features of LVDT.
4. Explain the function of piezo electric transducer.
5. Explain different types of optical encoders briefly.