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Electronics and Instrumentation - section-1
  1. The amplifier which has no drift is called as

    2. A.

     Differential amplifier
    B.

     DC amplifier
    C.

     Single ended amplifier
    D.

     Chopper amplifier

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  2. Function of microscope is
    S1: To magnify object, under observation
    S2: To resolve the object

    3. 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

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  3. In a LVDT, the two secondary voltages

    4. A.

     Are independent of the core position
    B.

     Vary unequally depending on the core position
    C.

     Vary equally depending on the core position
    D.

     Are always in phase quadrature

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  4. Test electrode is also known as

    5. A.

     Indicator electrode
    B.

     Reference electrode
    C.

     Second electrode
    D.

     Primary electrode

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  5. Quartz and Rochelle salt belongs to ___________ of piezo-electric materials

    6. A.

     Natural group
    B.

     Synthetic group
    C.

     Natural or Synthetic group
    D.

     Fiber group

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  6. A ___________ is usually a display device used to produce a paper record of analog wave form.

    7. A.

     Graphic pen recorder
    B.

     Electron microscope
    C.

     X-Y recorder
    D.

     Oscilloscope

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  7. ____________ fiber is used in interferometric instruments.

    8. A.

     Monomode
    B.

     Multimode
    C.

     Birefringent
    D.

     Coated

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  8. Fidelity represents
    S1: Reproduction of signal
    S2: Reproduction of phase relation

    9. A.

     S1 and S2 are true
    B.

     S1 and S2 are false
    C.

     S1 false and S2 true
    D.

     S1 true and S2 false

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  9. In an amplifier, the coupling capacitors are employed for

    10. A.

     Limiting the bandwidth
    B.

     Matching the impedance
    C.

     Preventing of Dc mixing with input or output
    D.

     Controlling the output

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  10. The application of LVDT is

    11. A.

     Joint motion
    B.

     Finger movement
    C.

     Limb movement
    D.

     Heart wall motion

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