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Measurement and Instrumentation

Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

2.5 A
5 A
0 A
None of the listed here

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Measurement and Instrumentation
The scale of a rectifier instrument is

Non-linear
None of the listed here
Linear
Either linear or non linear

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Measurement and Instrumentation
It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor?

200W
150W
50W
100W

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Iron- vane
Dynamometer
None of the listed here
D'Arsonval

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

 integrating.
 indicating.
 recording.
  absolute.

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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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