MEASURING INSTRUMENT - Practice Mode

1) Which is the advantage of dynamometer wattmeter?

Uniform scale Less expensive High sensitivity Consumes less power

Correct Answer: Uniform scale

2) Which factor the accuracy of ohmmeter depends?

Type of scale Condition of battery Sensitivity of the meter Value of resistance to be measured

Correct Answer: Condition of battery

3) What is the meter constant of an energy meter?

Multiplication factor of energy meter Number of revolutions per KWh Initial reading of KWh Final reading of KWh meter

Correct Answer: Number of revolutions per KWh

4) Which meter is integrating type instrument?

Wattmeter Ammeter Multimeter Energymeter

Correct Answer: Energymeter

5) What is the function of permanent magnet in an energy meter?

Acts as a brake to the disc when the load is OFF It helps the disc to move when load is ON It reduces the friction error It gives path for the magnetic flux

Correct Answer: Acts as a brake to the disc when the load is OFF

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