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Measurement and Instrumentation

Measurement and Instrumentation
The calibration of a voltmeter can be carried out by using

 A frequency meter.
 A function generator.
  A potentiometer.
 An ammeter.

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Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

High AC voltage
High DC voltage
Low frequency voltage
AC voltage of any form

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Measurement and Instrumentation
A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA?

 80 mA.
 25 mA.
 50 mA.
  40 mA.

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Measurement and Instrumentation
A 10MHz CRO has

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

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

Ohmmeter
Potentiometer
Wheatstone bridge
Voltmeter and ammeter

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Measurement and Instrumentation
A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ?

 ± 0.054
 ± 0.045
 ± 0.065
 ± 0.056

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MORE MCQ ON Measurement and Instrumentation

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