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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
Dynamic errors are caused by

 observational error
 environmental error
 instrument not responding fast
 human error

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Measurement and Instrumentation
The high torque to weight ratio in an analog indicating instrument indicates

 none of these.
 nothing related to friction loss.
 low friction loss.
 high friction loss.

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Measurement and Instrumentation
The measured value of a resistance is 10.25 ohm, whereas its value of 10.22 ohm. What is absolute error of the measurement?

 0.01 ohm.
 15.36 ohm.
 10.26 ohm.
  0.03 ohm.

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is low
Load impedance is high
None of these
Supply voltage is low

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Measurement and Instrumentation
To increase Q factor of a coil, the wire should be

 long and thin.
 thin.
 thick.
 long.

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