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Measurement and Instrumentation

Measurement and Instrumentation
Jewels are used in instruments for the purpose of

Damping
Suppressing noise
Torque control
Bearing

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Measurement and Instrumentation
For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from

 The same source as the unknown voltage.
 A battery.
 A source other than the source of unknown voltage.
 Any of above.

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Measurement and Instrumentation
An Ohmmeter is a

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

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Measurement and Instrumentation
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be

High
Almost zero
Low
None of the listed here

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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

 none of above.
 1.
 0.
 0.5.

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Measurement and Instrumentation
For measuring a very high resistance we should use

None of the listed here
Megger
Wheat stone bridge
Kelvin's double bridge

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MORE MCQ ON Measurement and Instrumentation

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