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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

  4.47 A.
 4 A.
 2 A.
 5.78 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

 450 mWb.
 1000 mWb.
 0.
 225 mWb.

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Measurement and Instrumentation
The range of a moving iron ac ammeter is extended by

None of the listed here
A shunt
Changing number of turns of operating coil
A multiplier

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Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Permanent magnet
Air friction
None of the listed here
Fluid friction

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Measurement and Instrumentation
An analog ammeter is

 a controlling instrument.
 a recording instrument.
  an indicating instrument.
 an absolute instrument.

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Measurement and Instrumentation
The function of shunt in an ammeter is to

Increase the resistance of ammeter
Increase the sensitivity of the ammeter
By pass the current
None of the listed here

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