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Measurement and Instrumentation

Measurement and Instrumentation
The errors introduced by an instrument fall in which category ?

 Environmental errors
 Systematic errors
 Random errors
 Gross errors

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Measurement and Instrumentation
One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land?

0.84
0.73
1
0.65

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Measurement and Instrumentation
Symmetric errors are

Observational errors
Environment errors
Instrument errors
All of the listed here

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Measurement and Instrumentation
A null type instrument as compared to a deflected type instrument has

 a faster response.
 a higher accuracy.
 a lower sensitivity.
All of these

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Measurement and Instrumentation
In a gravity controlled instrument, the deflection angle is proportional

Measurand
Square of the measurand
Sine inverse of measurand
Sine of the measurand

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Measurement and Instrumentation
The chemical effect of current is used in

C. ammeter hour meter
C. ammeter
None of these
C. energy meter

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MORE MCQ ON Measurement and Instrumentation

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