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EEE :: Electronics and Instrumentation

  1. In a graded index fiber, the total reflected light takes a ___________.

  2. A.

     Straight line path

    B.

     Parabolic path

    C.

     Elliptical path

    D.

     Circular path


  3. The CMRR of a typical IC OPAMP is

  4. A.

     70 dB

    B.

     80 dB

    C.

     85 dB

    D.

     75 dB


  5. In PMMC writing system, the magnitude of pen deflection is proportional to
    S1: Current flowing through the coil
    S2: Voltage in the coil

  6. A.

     S1 is true & S2 is false

    B.

     S2 is true & S1 is false

    C.

     Both S1 & S2 are true

    D.

     Both S1 & S2 are false


  7. The horizontal plates of a CRO are supplied with ___________ to observe the waveform of signal.

  8. A.

     Sinusoidal wave

    B.

     Cosine wave

    C.

     Sawtooth wave

    D.

     None of the above


  9. The outstanding characteristics of a D.C. amplifier is its

  10. A.

     Ability to amplify Dc and low frequency signals

    B.

     Temperature stability

    C.

     Utmost economy

    D.

     Avoidance of frequency sensitive components


  11. Capacitive transducers are normally employed for___________ measurements.

  12. A.

     Static

    B.

     Dynamic

    C.

     Transient

    D.

     Both static and dynamic


  13. Self generating type transducers are ___________ transducers.

  14. A.

     Active

    B.

     Passive

    C.

     Secondary

    D.

     Inverse


  15. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as ___________ transducer.

  16. A.

     Active

    B.

     Analog

    C.

     Digital

    D.

     Pulse


  17. An ammeter should have ___________ resistance.

  18. A.

     Infinite

    B.

     Very large

    C.

     Very low

    D.

     None of the above


  19. A voltmeter should have ___________ resistance.

  20. A.

     Zero

    B.

     Very high

    C.

     Very low

    D.

     None of the above