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Measurement and Instrumentation

Measurement and Instrumentation
The use of thermocouple meters for AC measurement leads to scale which is

 linear.
 expontial.
 square law.
 logarithmic.

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Measurement and Instrumentation
The main advantage of Anderson bridge over Maxwell bridge is that

  reduction of the cost.
 balance equation independent of frequency.
 measures high Q inductors.
 attaining balance condition is easier.

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Measurement and Instrumentation
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is

 110.
 10.
 100.
 11.

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Measurement and Instrumentation
The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ?

 1.5% & 99%
 1.5% & 98.75%
 1.25% & 98.25%
 1.25% & 98.75%

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

 both A and B.
 resistance of ammeter.
 resistance of shunt.
 resistance of shunt winding.

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is high
Supply voltage is low
Load impedance is low
None of these

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MORE MCQ ON Measurement and Instrumentation

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