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Measurement and Instrumentation

Measurement and Instrumentation
For measuring a very high resistance we should use

None of the listed here
Kelvin's double bridge
Megger
Wheat stone bridge

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Measurement and Instrumentation
The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is

One international ohm
One ohm according to working standards
Standard ohm
One ohm according to SI units

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Measurement and Instrumentation
The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be

 16.02 rpm.
 21.1 rpm.
  12.8 rpm.
 18.2 rpm.

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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 postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

 2 Nm.
 100 Nm.
  200 Nm.
 1 Nm.

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Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate and direct reading.
 accurate.
 accurate and precise.
 precise.

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Measurement and Instrumentation
An induction meter can handle current upto

30 A
100 A
10 A
60 A

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MORE MCQ ON Measurement and Instrumentation

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