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Electrician
Electrician Set-2
Measuring Instruments
16

Measuring Instruments MCQ with Answers

16) Which source of measuring error is caused by the effect of magnetic fields?

Device error

Human error

Influence error

Switching error

Answer is:

Influence error

Measuring Instruments MCQ with Answers

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Related Measuring Instruments MCQ with Answers

17) Which type of instrument is used with air friction damping?

Moving coil instrument

Moving iron instrument

Induction type instrument

Dynamo meter type instrument

Answer is:

Moving iron instrument

18) Which type of energy meter works with neutral connection?

Three phase two element

Three phase three element

Single phase single element

Three phase two element with CT & PT

Answer is:

Single phase single element

19) What is the unit of sensitivity in instruments?

Volt / ohm

Ohm / volt

Ohm metre

Ohm / metre

Answer is:

Ohm / volt

20) Why two straight holes are provided in the aluminium disc in energy meter?

To reduce the disc weight

For power factor correction

To prevent the flux leakage

To arrest the creeping error

Answer is:

To arrest the creeping error

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