Measurements and Instrumentation - ECE Questions and Answers

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The thermocouple instruments do not have

High sensitivity

Absence of frequency error

Independence of ambient temperature

High degree of measuring accuracy

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

Permanent Magnet Type ammeter

Induction type ammeter

Moving iron voltmeter

Moving iron ammeter

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Wien bridge is useful for measuring

Very high frequency

Low frequency

Medium frequency

High frequency

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When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is

Short-circuited

All right

Faulty

None of the above