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Measurement and Instrumentation

Measurement and Instrumentation
A voltmeter using thermocouple measures

  rms value.
 Peak value.
 Peak to peak value.
 Average value.

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Measurement and Instrumentation
A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is

 200 V.
 100 V.
 50 V.
 25 V.

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Measurement and Instrumentation
The dynamometer principle can be used for

 voltmeter only.
 wattmeter only.
 ammeter, voltmeter and wattmeter.
 ammeter only.

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Measurement and Instrumentation
A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is

 0.25V
 0.05V
 0.01V
 0.01V

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Measurement and Instrumentation
The controlling torque of an indicating instrument ______ as the deflection of the moving system increases.

Remains same
Decreases
None of the listed here
Increases

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Measurement and Instrumentation
For measuring a very high resistance we should use

Megger
Wheat stone bridge
None of the listed here
Kelvin's double bridge

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