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ECE :: Measurements and Instrumentation

  1. A megger is usually

  2. A.

     Moving iron type instrument

    B.

     Electro-static type instrument

    C.

     Hot-wire type instrument

    D.

     Moving coil type instrument


  3. A megger is usually

  4. A.

     Moving iron type instrument

    B.

     Electro-static type instrument

    C.

     Hot-wire type instrument

    D.

     Moving coil type instrument


  5. Ampere is one of the

  6. A.

     Supplementary units

    B.

     Derived units

    C.

     Base units

    D.

     Units used to measure charge


  7. The internal resistance of an ammeter should be

  8. A.

     Very small

    B.

     Medium

    C.

     High

    D.

     Infinity


  9. A rectifier type instrument is connected to 100VDC and is operated in the DC measuring module reads

  10. A.

     111V

    B.

     90V

    C.

     50V

    D.

     100V


  11. An oscilloscope indicates

  12. A.

     Peak to peak value of voltage

    B.

     DC value of voltage

    C.

     RMS value

    D.

     Average value


  13. Ryall crest voltmeter is used for measurement of

  14. A.

     AC voltage of any form

    B.

     Low frequency voltage

    C.

     High DC voltage

    D.

     High AC voltage


  15. Direct method is used to measure

  16. A.

     Length

    B.

     Temperature

    C.

     Pressure

    D.

     Voltage


  17. The resistance can be measured most accurately by

  18. A.

     Voltmeter-ammeter method

    B.

     Bridge method

    C.

     Multimeter

    D.

     Megger


  19. In a ballistic galvanometer, the deflecting torque is proportional to

  20. A.

     The current through coil

    B.

     Square of current through coil

    C.

     Square-root of current through coil

    D.

     Sine of measured