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Measurement and Instrumentation

Measurement and Instrumentation
The electrical power to a megger is provided by

Permanent magnet dc generator
Ac generator
Any of the listed here
Battery

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Measurement and Instrumentation
An electrodynamic meter can be used to measure

 DC current.
 DC voltage.
  both AC and DC voltage.
 AC volatge.

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 absolute error
 probable error
 gross error
 relative error

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Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

 20.
 20√3.
 10.
  10√3.

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Measurement and Instrumentation
Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements

 1, 2 and 3 are correct
 1 and 3 are correct
 1 and 2 are correct
 2 and 3 are correct

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Measurement and Instrumentation
The quantity 1/√(∈0 × μ0) in SI units has the

 dimension LT-1.
 both ‘a’ and ‘b’.
 none of these.
 speed of light.

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MORE MCQ ON Measurement and Instrumentation

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