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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
Exponential scale
Linear scale
Square-law scale

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

 expontial.
 linear.
 logarithmic.
 square law.

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Measurement and Instrumentation
Relative error is same as

 ratio of absolute error and true value.
None of these
 true error.
 absolute error.

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Measurement and Instrumentation
A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is

0°
90°
30°
120°

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Measurement and Instrumentation
Which of following is a vector quantity?

 Relative permeability.
 Flux density.
 Magnetic field intensity.
 Magnetic potential.

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Measurement and Instrumentation
Which of the following devices should be used for accurate measurement of low D.C. voltage?

Small range moving coil voltmeter
Small range thermocouple voltmeter
None of these
C. potentiometer

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MORE MCQ ON Measurement and Instrumentation

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