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Measurement and Instrumentation

Measurement and Instrumentation
Most accurate measurement of unknown resistance will be by

Wheatstone bridge
Voltmeter and ammeter
Potentiometer
Ohmmeter

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Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Fluid friction
None of the listed here
Permanent magnet
Air friction

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Measurement and Instrumentation
The Metric System is also called as:

 MKS system
None of these
 SI
 CGS

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Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

 inclined at 30o.
 parallel.
 perpendicular.
 inclined at 60o.

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Measurement and Instrumentation
To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken

From a source which is not the same as the unknown voltage
Any of the above
From the same source as the unknown voltage
From a battery

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Measurement and Instrumentation
A 10MHz CRO has

10MHz supply frequency
10MHz horizontal oscillator
10MHz vertical oscillator
5MHz sweep

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MORE MCQ ON Measurement and Instrumentation

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