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Measurement and Instrumentation

Measurement and Instrumentation
An electrodynamic meter can be used to measure

 AC volatge.
 DC current.
  both AC and DC voltage.
 DC voltage.

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Measurement and Instrumentation
A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power?

 32.56 W .
 25.45 W.
None of these
 28.12 W.

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Measurement and Instrumentation
Two capacitance, C1 = 150 ± 2.4µF and C2 = 120 ± 1.5 µF are connected in parallel. What is the limiting error of the resultant capacitance C (in µF) ?

 2.4µF
 0.9µF
 3.9µF
 1.5µF

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Measurement and Instrumentation
To measure high frequency currents, we mostly use ______ ammeter.

Hot wire
Thermocouple
Dynamometer
Moving iron

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Measurement and Instrumentation
To increase Q factor of a coil, the wire should be

 long and thin.
 thick.
 thin.
 long.

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Measurement and Instrumentation
A megger is usually

Moving iron type instrument
Electro-static type instrument
Moving coil type instrument
Hot-wire type instrument

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MORE MCQ ON Measurement and Instrumentation

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