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Measurement and Instrumentation

Measurement and Instrumentation
A thermo couple ammeter gives full scale deflection of 10 A, when it reads one fifth of the scale, the current will be

 2 A.
 4 A.
  4.47 A.
 5.78 A.

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Measurement and Instrumentation
The adjustment of position of shading bands, in an energy meter is done to provide

None of the listed here
Friction compensation
Creep compensation
Breaking torque

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

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

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Measurement and Instrumentation
What is the expression for momentum?

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

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Measurement and Instrumentation
The operating voltage of a megger is about

100 V
6 V
40 V
12 V

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Measurement and Instrumentation
A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

 100 W.
  0 W.
 50 W.
 25 W.

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