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Measurement and Instrumentation

Measurement and Instrumentation
For handling greater currents induction watt-meters are used in conjunction with

Current transformers
Either of the above
Power transformers
Potential transformers

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Measurement and Instrumentation
The scale of a rectifier instrument is

Non-linear
Linear
None of the listed here
Either linear or non linear

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Measurement and Instrumentation
Instrument transformers are

Power transformers
Pottential transformers
Current transformers
Both current and potential transformers

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Measurement and Instrumentation
The rectifier instrument is not free from

Wave shape error
All of the listed here
Frequency error
Temperature error

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Measurement and Instrumentation
A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be

 0.25 A.
 0.67 A.
 0.50 A.
 0.70 A.

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Measurement and Instrumentation
The pointer of an indicating instrument is generally made of _______

Soft steel
Copper
Silver
Aluminium

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MORE MCQ ON Measurement and Instrumentation

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