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EEE :: Electronics and Instrumentation

  1. Silver chloride electrode is used as a reference electrode due to its

  2. A.

     Large half cell potential

    B.

     Stable half cell potential

    C.

     Stable resting potential

    D.

     Stable action potential


  3. In X-Y recorders, the self balancing potentiometers plot emf as a function of

  4. A.

     Another emf

    B.

     Frequency

    C.

     Time

    D.

     Pressure


  5. In strip chart recorders, the self balancing potentiometers plot emf as a function of

  6. A.

     Another emf

    B.

     Frequency

    C.

     Time

    D.

     Pressure


  7. When an ammeter is inserted in the circuit, the circuit current will ___________.

  8. A.

     Increase

    B.

     Decrease

    C.

     Remain the same

    D.

     None of the above


  9. Stress and strain curves are plotted using

  10. A.

     Magnetic tape recording

    B.

     X-Y recording

    C.

     Galvanometric

    D.

     PMMC writing systems


  11. A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal.

  12. A.

     Unity

    B.

     Zero

    C.

     Infinity

    D.

     Constant


  13. An inverse transducer is a device which converts

  14. A.

     An electrical quantity into a non electrical quantity

    B.

     Electrical quantity into mechanical quantity

    C.

     Electrical energy into thermal energy

    D.

     Electrical energy into light energy


  15. The materil used to coat inside the face of CRT is ___________.

  16. A.

     Carbon

    B.

     Sulphur

    C.

     Silicon

    D.

     Phosphorous


  17. Feedback in an amplifier always helps in

  18. A.

     Increasing its input impedance

    B.

     Increasing its gain

    C.

     Controlling its output

    D.

     Stabilizes its gain


  19. The capacitance microphone is used for the detection of

  20. A.

     Heart rate

    B.

     Blood flow

    C.

     Heart sound

    D.

     Foot pressure