Electrical instruments and Measurement MCQs -p2

01. Which of the following can measure the resistance having the value below 1 Ohm most precisely?

Kelvin’s Double Bridge

Megger

MUltimeter

Wheatstone Bridge


02. Which of the following quantities cannot be measured using a multimeter?

AC voltage

DC Current

Phase Angle

Resistance


03. Which of the following is the cause of the speed error in the induction type energy meter?

Incorrect Position of brake magnets

Incorrect adjustment of the position of shading bands

Slow but continuous rotation of an aluminum disc

Temperature variations


04. Which of the following bridge is the most suitable for the measurement of the unknown resistance?

Hay’s Bridge

Anderson Bridge

Wien’s Bridge

Wheatstone Bridge


05. Which of the following instrument is used for the measurement of insulation resistance?

Megger

Wattmeter

Ammeter

Voltmeter


06. Which of the following is a type of recording instrument?

Ammeter

Megger

X-Y Plotter

Voltmeter


07. Which of the following is TRUE about analog multimeter?

It is a type of absolute instrument

It is a type of indicating instrument

It is a type of recording instrument.

It is a type of integrating instrument.


08. Which of the following is TRUE about current transformers?

1 point

It decreases the range of AC ammeter

It decreases the range of DC ammeter

It increases the range of AC ammeter

It increases the range of DC ammeter


09. Which of the following produces braking torque in induction type energy meter?

1 point

Air Dampers

Eddy current

Spring

Gravity


10. Which of the following can be used to measure frequency?

1 point

Anderson’s Bridge

De-Sauty’s Bridge

Owen’s Bridge

Wien’s Bridge


11. Ammeter and voltmeter are connected across the load in _______ and _______ respectively.

1 point

Series, Parallel

Parallel, Series

Series, Series

Parallel, Parallel


12. Which one of the following statements is NOT TRUE about multimeter?

1 point

The multimeter can be used for the measurement of voltage

The multimeter can be used for the measurement of power

The multimeter can be used for the measurement of resistance

The Multimeter can be used for the measurement of current


13. What should be the size of the slide wire of the potentiometer to make it to achieve high accuracy?

1 point

As long as possible

As short as possible

1 meter

Neither too thin nor too thick


14. What should be observed when connecting a voltmeter into a DC circuit?

1 point

RMS

Resistance

Polarity

Power factor


Read more» electrical instruments and measurement mcq

15. The current transformer that is used to measure a 100 A current by 5 A ammeter is a _________

1 point

Step-up transformer

Step down transformer

Power transformer

Distribution transformer

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