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Measurement and Instrumentation

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

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

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Measurement and Instrumentation
To measure ac as well as dc power, we use

None of the listed here
Sometimes induction and sometimes dynamometer wattmeter
Dynamometer wattmeter
Induction wattmeter

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Measurement and Instrumentation
The use of __________________ instruments is merely confined within laboratories as standardizing instrument.

  absolute.
 integrating.
 indicating.
 recording.

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Measurement and Instrumentation
The chemical effect of current is used in

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

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Measurement and Instrumentation
Which of the following is a variable displacement transducer?

 tachometer
 potentiometer
 synchros
None of these

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Measurement and Instrumentation
A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be

 ± 7%
 ± 8%
 ± 5%
 ± 6%

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