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Measurement and Instrumentation

Measurement and Instrumentation
A dynamometer wattmeter can be used for

Any of the listed here
AC only
Both DC and AC
DC only

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Measurement and Instrumentation
A voltmeter using thermocouple measures

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

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

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

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Measurement and Instrumentation
The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be

  12.8 rpm.
 16.02 rpm.
 18.2 rpm.
 21.1 rpm.

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Measurement and Instrumentation
An Ohmmeter is a

None of the listed here
Moving iron instrument
Moving coil instrument
Dynamometer instrument

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Measurement and Instrumentation
The material of the shunt should have _______ temperature co-efficient of resistance.

Negative
Negligible
Positive
None of the listed here

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MORE MCQ ON Measurement and Instrumentation

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