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Measurement and Instrumentation

Measurement and Instrumentation
0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is

 3%
 4%
 1%
 2%

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

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

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Measurement and Instrumentation
In which of the transformer is the secondary nearly short circuited under normal operating condition?

 CT.
 PT.
 Distribution transformer.
 Power transformer.

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Measurement and Instrumentation
The internal resistance of a milli-ammeter must be very low for

 minimum effect on the current in the circuit.
 high accuracy.
 high sensitivity.
 high precision.

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Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

AC voltage of any form
High DC voltage
Low frequency voltage
High AC voltage

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Measurement and Instrumentation
Piezoelectronic accelerometer

 Should be used for low frequency.
 Should use a monitoring source at low input impedance.
 Has a low natural frequency.
 Should be used for high frequencies above 100 Hz.

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MORE MCQ ON Measurement and Instrumentation

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