EE8403 Question Bank Measurements And Instrumentation
EE8403 Question Bank Measurements And Instrumentation Regulation 2017 Anna University free download. Measurements And Instrumentation Question Bank EE8403 pdf free download.
Sample EE8403 Question Bank Measurements And Instrumentation:
1. State the principle of digital voltmeter. (2)
2. Give the importance of iron loss measurement. (2)
3. List two instruments for measurement of frequency. (2)
4. Write the function of instrument transformer. (2) EE8403 Question Bank measurements and instrumentation
5. Brief the principle of digital phase meter. (2)
6. Write any two advantages and disadvantages of digital voltmeter. (2)
7. Explain the purpose of Schmitt trigger in digital frequency meter. (2)
8. Which torque is absent in energy meter? Why? (2) EE8403 Question Bank measurements and instrumentation
9. What are the errors that take place in moving iron instrument? (2)
10. Explain the principle of analog type electrical instruments. (2)
11. How a PMMC meter can be used as voltmeter and ammeter? (2)
12. What is loading effect? (2) EE8403 Question Bank measurements and instrumentation
13. State the basic principle of moving iron instrument. (2)
14. Why an ammeter should have a low resistance? (2)
15. Define the sensitivity of a moving coil meter. (2)
16. What are the precautions taken while using a DC voltmeter and DC Ammeter? (2) EE8403 Question Bank measurements and instrumentation
17. What is the use of Multimeter? Write its advantages and disadvantages. (2)
18. Voltmeter has high resistance, why it is connected in series? (2)
19. What is an energy meter? Mention some advantages and disadvantages of energy
meter. (2) EE8403 Question Bank measurements and instrumentation
20. What is meant by creep adjustment in three phase energy meter? (2)
PART – B EE8403 Question Bank measurements and instrumentation
1. (i) Describe the construction and working of a permanent magnetic moving coil
instruments. (10)
(ii) Explain the design of three phase wattmeters and give the reactive power
measurement in 3 phase circuits. (6)
2. (i) How B-H curve is determined for a ring specimen. (8)
(ii) Explain the frequency measurement in Wien’s bridge (8)
3. Discuss why it is necessary to carry out frequency domain analysis of measurement Systems? What are the two plots obtained when the frequency response of a system is carried out? (16) EE8403 Question Bank measurements and instrumentation
4. Explain the function of three phase wattmeter and energy meter. (16)
5. (i) Sketch the circuit and waveforms for ac voltmeter using a PMMC
Instrument and half wave rectifier. Explain the circuit operation. (10)
(ii) Develop the torque equation for a PMMC instrument and show its scale is linear (6)
6. (i) Discuss in detail the working of the successive approximation DVM.(8)
(ii) With a neat diagram, explain the various methods of magnetic measurements. (8)
7. (i) Explain with a neat sketch the construction and working principle of single-phase induction type energy meter. (10) EE8403 Question Bank measurements and instrumentation
(ii) How the range of d.c ammeter and d.c voltmeter can be extended?
Derive the expressions to calculate shunt resistance and multiplier resistance. (6)
8. (i) With a neat diagram explain the construction and working of electrodynamometer
type instruments. Also derive its torque equation. (10)
| Subject name | Measurements And Instrumentation |
| Short Name | MI |
| Semester | 4 |
| Subject Code | EE8403 |
| Regulation | 2017 regulation |
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