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ECE :: Measurements and Instrumentation

  1. An electrostatic voltmeter is suitable for

  2. A.
    low voltage at high frequency
    B.
    high voltage
    C.
    low voltage at low frequency
    D.
    all ac and dc voltages

  3. The flow rate of electrically conducting liquid without any suspended particle can not be measured by

  4. A.
    turbine flow meter
    B.
    electromagnetic flow meter
    C.
    ultrasonic flow meter
    D.
    thermistor based heat flow meter

  5. While calibrating an ammeter by a dc potentiometer it is necessary to use a standard resistance.

  6. A.
    True
    B.
    False

  7. If J is moment of Inertia, D is damping constant, C is spring constant, G is displacement constant and I is current throught the coil of DArsonval galvanometer, the equation of motion is


  8. The term 'Poisson's ratio' is connected with

  9. A.
    strain gauge
    B.
    LVDT
    C.
    Bourden tube
    D.
    capacitance transducer