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Measurement and Instrumentation

Measurement and Instrumentation
The scale of hot wire ammeter is

 Absloute linear.
 Cramped.
  Non Linear.
 Linear.

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Measurement and Instrumentation
No eddy current and hysteresis losses occur in

Electrodynamo meter instruments
PMMC instruments
Moving iron instruments
Electrostatic instruments

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Measurement and Instrumentation
The moving coil-meters, damping is provided by

 eddy current disk.
 the aluminium frame of the coil.
 damping vane in the airtight chamber.
 the coil spring attached to the moving.

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Measurement and Instrumentation
Which of the following devices may be used for extending the range of instruments?

Shunt
All of the listed here
Potential transformers
Current transformers

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Measurement and Instrumentation
Systematic errors are

 environmental errors.
All of these
 instrument errors.
 observational errors.

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Measurement and Instrumentation
Swamping resistance is used to compensate

 error due to strong magnetic field.
 none of these.
 both A and B.
 error due to temperature true variations.

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MORE MCQ ON Measurement and Instrumentation

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