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Measurement and Instrumentation

Measurement and Instrumentation
The problem of Electrostatic coupling in a transformer is acute at

Low frequencies
High frequencies
High load on the transformer
Power frequencies

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Measurement and Instrumentation
An electric pyrometer is an instrument used to measure

Phase
High temperatures
Frequency
None of the listed here

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Measurement and Instrumentation
The scale of hot wire ammeter is

 Linear.
  Non Linear.
 Absloute linear.
 Cramped.

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Measurement and Instrumentation
Which of the following instruments can be used to measure AC current only?

Moving iron voltmeter
Permanent Magnet Type ammeter
Induction type ammeter
Moving iron ammeter

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Measurement and Instrumentation
Electrostatic instruments are used as

Voltmeters only
Ammeters only
Both ammeter and voltmeter
Wattmeter only

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Measurement and Instrumentation
Which one of the following units is a fundamental unit?

 Newton
 Joule/sec
 Ampere
 Watt

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