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Measurement and Instrumentation

Measurement and Instrumentation
The calibration of a voltmeter can be carried out by using

 A frequency meter.
 A function generator.
 An ammeter.
  A potentiometer.

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Measurement and Instrumentation
Which of the following meters has a linear scale?

Hot wore meter
Moving coil meter
Thermocouple meter
Moving iron meter

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Dynamometer
Iron- vane
D'Arsonval
None of the listed here

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Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

 inclined at 30o.
 perpendicular.
 inclined at 60o.
 parallel.

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Measurement and Instrumentation
Dynamic errors are caused by

 human error
 environmental error
 instrument not responding fast
 observational error

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Measurement and Instrumentation
If an inductance is connected in one arm of the bridge and resistance is the remaining three arms

The bridge can always be balanced
None of the listed here
The bridge cannot be balanced
The bridge can be balanced if the resistance have some specific values

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