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Measurement and Instrumentation

Measurement and Instrumentation
A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage

 1 %.
 3.33 %.
 2 %.
  2.66 %.

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Measurement and Instrumentation
Electrostatic instruments are used as

Ammeters only
Wattmeter only
Voltmeters only
Both ammeter and voltmeter

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

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

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Measurement and Instrumentation
Dynamic errors are caused by

 environmental error
 observational error
 instrument not responding fast
 human error

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Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate and direct reading.
 accurate.
 precise.
 accurate and precise.

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Measurement and Instrumentation
The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when

 R1 = 2R2.
 R1 = R2/2.
 R1 = R2.
 R1 = 3R2.

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MORE MCQ ON Measurement and Instrumentation

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