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Measurement and Instrumentation

Measurement and Instrumentation
An current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading?

 2+3√2 A.
 5 A.
 2 A.
  3 A.

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

Flux meter
Ammeter
Ballastic galvanometer
Voltmeter

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Measurement and Instrumentation
A mulliammeter can be used as

Frequency meter
Wattmeter
Ohmmeter
Voltmeter and ammeter

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Measurement and Instrumentation
The ratio of change in output to the change in the input is called

 repeatability
 sensitivity
 precision
 resolution

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Measurement and Instrumentation
Which of the following meter is most suitable for measuring radio frequency currents?

 Moving - iron meter.
  Thermocouple meter.
 VTVM.
 Moving - coil meter.

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Measurement and Instrumentation
The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ?

 1.5% & 99%
 1.5% & 98.75%
 1.25% & 98.75%
 1.25% & 98.25%

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