#1
April 20th, 2015, 10:22 AM
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Anna University Year Question Papers
Will you please provide the Anna University Third Semester EEE Measurements And Instrumentation exam Question Paper ?
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#2
April 22nd, 2015, 08:28 AM
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Re: Anna University Year Question Papers
Here I am providing the list of few questions of Anna University Third Semester EEE Measurements And Instrumentation exam Question Paper which you are looking for . Anna University Third Semester EEE Measurements And Instrumentation exam Question Paper PART A — (10 × 2 = 20 Marks) 1. Define static characteristics of an instrument. 2. What is meant by absolute error of measurement? 3. Why are the ordinary watt-meters not suitable for low power factor circuits? 4. What is a phase sequence indicator? 5. List the application of D.C. potentiometers. 6. What are parasitic voltages and how are they eliminated? 7. What is the purpose of a Post Deflection Acceleration (PDA) in a CRT? 8. Differentiate between LED and LCD. 9. What are the classifications of encoder? 10. What is the need of sample and hold circuit in A/D converter? PART B — (5 × 16 = 80 Marks) 11. (a) (i) Draw the block diagram of functional elements of measuring system and explain the function of each block. (Marks 8) (ii) Explain the different types of errors in measurements. (Marks 8) Or (b) (i) The probable values of two resistors and their S.D are specified as R1 – 18.62 , S.D = 0.025 , R2 = 74.48 , S.D. = 0.05 . Find the probable value and S.D for the two resistors when they are connected in (1) Series and (2) Parallel. (Marks 8) (ii) Discuss the different types of standards of measurements. (Marks 8) 12. (a) (i) What are the various types of digital voltmeters? With a neat sketch explain the working principle of any one type of a digital voltmeter. (Marks 8) (ii) With a neat diagram explain the construction and its working principle of elector dynamo-meter type watt-meter. Also derive its torque equation. (Marks 8) Or (b) (i) Explain the method of measurements of B.H curve of a ring specimen with a neat diagram. (Marks 8) (ii) Describe the construction and working principle of digital frequency meter. (Marks 8) 13. (a) (i) Draw a neat sketch of a modern slide-wire D.C potentiometer and discuss how the potentiometer is standardized. (Marks 8) (ii) Describe how co-ordinate type potentiometer can be used for calibration of a voltmeter and A.C energy meters. (Marks 8) Or (b) (i) Explain the theory and working principle of Kelvin's double bridge method for measurement of low resistance. Derive the relation for finding unknown resistance. (Marks 8) (ii) Discuss briefly how Hay's Bridge can be used for the measurement of inductance. (Marks 8) 14. (a) (i) Explain the construction and its working principle of X-Y Recorder. (6) (ii) Briefly discuss the features of digital plotters and printers. (Marks 10) Or (b) (i) Explain the working principle of electrostatic deflection system in a CRT. (10) (ii) Explain the working principle of digital storage oscilloscope. (Marks 6) 15. (a) (i) Explain the construction and working of unbounded and bonded type strain gauges. (Marks 8) (ii) Explain the construction and working of optical encoders with a neat diagram. (Marks 8) Or (b) (i) Draw the generalized block diagram of a digital data acquisition system and explain. (Marks 8) (ii) Explain the successive approximation method of A/D converter. (8) |
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