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Measurement and Instrumentation

Measurement and Instrumentation
If the instrument is to have a wide range, the instrument should have

Logarithmic scale
Square-law scale
Linear scale
Exponential scale

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Measurement and Instrumentation
The EMF of Weston standard cell is measured using

Potentiometer
Moving-coil meter
Digital Volt meter
Moving- iron meter

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Measurement and Instrumentation
A bridge circuit is shown in the figure below. Which one of the sentence given below is most suitable for balancing the bridge?

 First adjust R2 and then adjust R4.
 First adjust R4 and then adjust R2.
 First adjust R2 and then adjust R3.
 First adjust R4 and then adjust R1.

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Measurement and Instrumentation
Deflection method direct measurements are most widely used as these are

 most accurate.
 least time consuming.
 most simple.
 most simple and least time consuming.

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Measurement and Instrumentation
For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is

 1.2%
 25.2%
 10.2%
 5.2%

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Measurement and Instrumentation
A megger is usually

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

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MORE MCQ ON Measurement and Instrumentation

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