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Wireman
Wireman Set-1
Measuring Instrument
13

Measuring Instrument MCQ with Answers

13) Which is the angle of two moving coils rigidly attached to each other of a dynamo meter type 3 phase P.F meter?

90 Degree

120 Degree

180 Degree

360 Degree

Answer is:

120 Degree

Measuring Instrument MCQ with Answers

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Related Measuring Instrument MCQ with Answers

14) Which principle the instrument transformers work?

Self induction

Mutual induction

Fall in potential

Lenzs law

Answer is:

Mutual induction

15) How the burden of current transformer is expressed?

Watt

Ampere hour

Volt ampere

Watt hour

Answer is:

Volt ampere

16) Why the pointer of a megger is in any place on the scale while it is in idle?

The deflecting torque is proportional to current

The deflecting torque on the meter is inversely proportional to current

The instrument does not have controlling torque

The deflecting torque is inversely proportional to square of the current

Answer is:

The instrument does not have controlling torque

17) Which principle earth tester works?

Induction

Magnetic attraction

Magnetic deflection

Fall of Potential

Answer is:

Fall of Potential

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