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MEASUREMENT AND INSTRUMENTATION

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

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

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
Schering bridge is used to measure which of the following?

 Resistance.
 Inductance.
  Capacitance.
 Frequency.

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Measurement and Instrumentation
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

 1 µNm.
 100 µNm.
 2 µNm.
  200 µNm.

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Measurement and Instrumentation
Attraction and repulsion type instruments are the two different types of which instrument ?

  Moving iron type.
 Induction type.
 Dynamo-meter type.
 Multipliers.

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Measurement and Instrumentation
A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec?

 150o.
 63.25o.
 30o.
 105.6o.

ANSWER DOWNLOAD EXAMIANS APP
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