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Measurement and Instrumentation

Measurement and Instrumentation
What is the expression for momentum?

 force × displacement
 change of velocity / time
 mass × velocity
 mass × acceleration

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

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

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Measurement and Instrumentation
Which one of the following units is a fundamental unit?

 Joule/sec
 Ampere
 Newton
 Watt

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Measurement and Instrumentation
Which of the following meter is most suitable for measuring radio frequency currents?

  Thermocouple meter.
 VTVM.
 Moving - coil meter.
 Moving - iron meter.

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

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Measurement and Instrumentation
The core flux in the CT of above question no.6, under the given operating conditions is

 0.
 225 mWb.
 1000 mWb.
 450 mWb.

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MORE MCQ ON Measurement and Instrumentation

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