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  1. Using mechanical chopper we cannot achieve high chopping rates due to their

  2. A.

     Input impedance

    B.

     Output impedance

    C.

     Response time

    D.

     Inertia

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  3. An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is ___________.

  4. A.

     nG

    B.

     (n-1)G

    C.

     G/(n-1)

    D.

     G/n

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  5. A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is ___________.

  6. A.

     nG

    B.

     G/n

    C.

     G/(n-1)

    D.

     (n-1)G

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  7. _____________ is also known as halftone storage or mersh storage.

  8. A.

     Variable persistence storage

    B.

     Bistable storage

    C.

     Flat storage

    D.

     CRT

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  9. The sensitivity of a multimeter is given in ___________.

  10. A.

     O

    B.

     Amperes

    C.

     kΩ/V

    D.

     none of the above

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  11. An electrometer amplifier has high input impedance of

  12. A.

     10¹⁰Ω

    B.

     10¹²Ω

    C.

     10²⁰Ω

    D.

     10¹⁴Ω

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  13. Venturi is associated with

  14. A.

     Venous blood pressure

    B.

     Digital plethysmography

    C.

     Dialysate flow in artificial kidney

    D.

     Blood flow in heart lung machine

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  15. The decibel is a measure of

  16. A.

     Current

    B.

     Voltage

    C.

     Power

    D.

     Power level

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  17. When the input of differential amplifier V1 = 0, then the differential amplifier is said to be operated in

  18. A.

     Common mode

    B.

     Differential mode

    C.

     Non inverting mode

    D.

     Inverting mode

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  19. When either one of the inputs to the differential amplifier is equal to zero then it is said to be operated in

  20. A.

     Single ended mode

    B.

     Differential mode

    C.

     Non inverting mode

    D.

     Inverting mode

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