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Measurement and Instrumentation

Measurement and Instrumentation
In a megger controlling torque is provided by

Gravity
Eddy current
Coil
Spring

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Measurement and Instrumentation
The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ?

 ± 2.5%
 ± 1%
 ± 1.5%
 ±3.5%

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Measurement and Instrumentation
The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is

 ± 2.8%
 ± 4%
 ± 6%
 ± 3%

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Measurement and Instrumentation
The errors mainly caused by human mistakes are

 systematic error.
 observational error.
  gross error.
 instrumental error.

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as

 (400 ± 3) A
 (400 ± 2.24) A
 (400 ± 1) A
 (400 ±5) A

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Measurement and Instrumentation
A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V?

 5%
 1%
 2%
 3.33%

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MORE MCQ ON Measurement and Instrumentation

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