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MEASUREMENT AND INSTRUMENTATION

Measurement and Instrumentation
A power factor meter has

None of the listed here
One current circuit and two pressure circuits
Two current circuit and one pressure circuit
One current circuit and one pressure circuit

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Measurement and Instrumentation
If an inductance is connected in one arm of the bridge and resistance is the remaining three arms

None of the listed here
The bridge cannot be balanced
The bridge can always be balanced
The bridge can be balanced if the resistance have some specific values

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Measurement and Instrumentation
The power factor of a single phase load can be calculated if the instruments available are

Any of the listed here
One voltmeter, one ammeter and one wattmeter
One ammeter, one voltmeter and one energy meter
One voltmeter and one ammeter

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Measurement and Instrumentation
Commonly used instruments in power system measurement are

Rectifier
Moving coil or iron
Induction
Electrostatic

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Dynamometer
None of the listed here
Iron- vane
D'Arsonval

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