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Measurement and Instrumentation

Measurement and Instrumentation
Null type recorders are

 any one of the above.
 potentiometric recorders.
 LVDT recorders.
 bridge recorders.

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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.
 18.2 rpm.
  12.8 rpm.
 21.1 rpm.

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Measurement and Instrumentation
What is the approximate input impedance of a CRO?

 0
 100 MΩ
 10 MΩ
 1 MΩ

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Measurement and Instrumentation
For measurement of high direct voltage, one would use _____ voltmeter.

Electrostatic
Hot wire
Moving iron
PMMC

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Measurement and Instrumentation
In which of the transformer is the secondary nearly short circuited under normal operating condition?

 Power transformer.
 PT.
 Distribution transformer.
 CT.

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

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

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MORE MCQ ON Measurement and Instrumentation

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