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Measurement and Instrumentation

Measurement and Instrumentation
The form factor in AC is the ratio of

Rms value to peak value
Peak value to rms value
Rms value to average value
Peak value to average value

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

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

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Measurement and Instrumentation
A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of

 All of above.
 Contact resistance.
 Resistance of connecting leads.
 Thermoelectric emfs.

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Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate and precise.
 accurate and direct reading.
 precise.
 accurate.

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Measurement and Instrumentation
Moving iron instruments have _____ scale.

Uniform
None of the listed here
Log
Squared

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Measurement and Instrumentation
What is the standard unit for length ?

 Meter
 Centimeter
 Kilometer
 Inch

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MORE MCQ ON Measurement and Instrumentation

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