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Model Paper DEEE III SEM ||ELEC.MEASU. INSTRU. EMS EE- 304||

ELECTRICAL & ELECTRONIC MEASURING INSTRUMENTS

Subject Title              :           Electrical & Electronic Measuring Instruments

Subject Code             :           EE – 304

 

              BOARD DIPLOMA EXAMINATIONS, (C-14)

 

                DEEE-THIRD SEMISTER EXAMINATIONS
    MODEL PAPER-I
                         ELECTRICAL & ELECTRONIC MEASURING INSTRUMENTS

                                                           SUB CODE:EE-304

Time:3hour                                                                                              Total marks:80

                                                                    PART –A

Answer all the question each carries 3 marks                       10 x 3 = 30 marks

  1. List any six important electrical quantities to be measured by giving their units.
  2. Define i) accuracy ii) precision     iii) error
  3. List the three types of errors commonly occurring in moving coil (M.C.)instruments
  4. List the applications of CT and PT.
  5. List the applications of Potentiometer.
  6. Classify the resistance into Low , Medium and High Values
  7. State the applications of Transducers.
  8. Write about Semiconductor sensors.
  9. List analog electronic Instruments.
  10. State the uses of Tong tester (clamp meter).

 

PART –B

Answer any five questions each carries 10 marks                        5 x 10 = 50

  1. (a) Explain the methods of obtaining i)deflecting torque ii) controlling torque    and iii) damping torque in indicating instruments.(5)

(b) Mention the specifications of digital voltmeter.(5)2.

2.Explain the working of Permanent Magnet Moving Coil Instrument (Voltmeter/Ammeter)

3.Describe the construction of a dynamometer type instrument

4.Describe the construction of a 1-phase induction type Energy meter

5.Explain the construction and working of Weston synchroscope

6.State the construction and working principle of basic Potentiometer

7.Describe the working of Linear Variable Differential Transformer(LVDT).

8.Explain the Working of Three Phase Digital Energy meter with block diagram.

 

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