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Measurement and Instrumentation

Measurement and Instrumentation
A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt.

Voltmeter
Ballastic galvanometer
Flux meter
Ammeter

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Measurement and Instrumentation
_______ is used to measure the flow of air around aeroplane.

 Orifice.
  Anemometer.
 Venturimeter.
 nucleus.

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 relative error
 gross error
 absolute error
 probable error

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Measurement and Instrumentation
When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is

 small.
 high.
 very high.
 ideally zero.

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Measurement and Instrumentation
A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V?

 2%
 3.33%
 5%
 1%

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Measurement and Instrumentation
The transfer instrument which is used for standardization of a polar type AC potentiometer is

 an electrostatic instrument.
 a thermal instrument.
 a moving coil instrument.
 a dynamometer instrument.

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