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Measurement and Instrumentation

Measurement and Instrumentation
In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is

 0.
 0.5.
 none of above.
 1.

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Measurement and Instrumentation
Which of following is a vector quantity?

 Magnetic potential.
 Flux density.
 Relative permeability.
 Magnetic field intensity.

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Measurement and Instrumentation
The moving coil-meters, damping is provided by

 the coil spring attached to the moving.
 eddy current disk.
 the aluminium frame of the coil.
 damping vane in the airtight chamber.

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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
Schering bridge is used to measure which of the following?

 Resistance.
 Frequency.
  Capacitance.
 Inductance.

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Measurement and Instrumentation
Alternating current is measured by

Moving iron repulsion type voltmeter
Permanent magnet type ammeter
Induction ammeter
Electrostatic ammeter

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MORE MCQ ON Measurement and Instrumentation

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