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Measurement and Instrumentation

Measurement and Instrumentation
An electrodynamic meter can be used to measure

 DC current.
 AC volatge.
 DC voltage.
  both AC and DC voltage.

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Measurement and Instrumentation
A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec?

 105.6o.
 30o.
 63.25o.
 150o.

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Measurement and Instrumentation
The internal resistance of an ammeter should be

Medium
High
Infinity
Very small

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Measurement and Instrumentation
The thermocouple instruments do not have

Independence of ambient temperature
High sensitivity
High degree of measuring accuracy
Absence of frequency error

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

Low frequencies
Power frequencies
High load on the transformer
High frequencies

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

High temperatures
Phase
Frequency
None of the listed here

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MORE MCQ ON Measurement and Instrumentation

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