MEASURING INSTRUMENT - Quiz

1) Which error is caused by the braking system of energy meter?

Creeping error Speed error Phase error Friction error

2) How many segments in LCD displays in Digital Multi Meter (DMM)?

10 8 7 6

3) 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

4) Which principle the instrument transformers work?

Self induction Mutual induction Fall in potential Lenzs law

5) How the burden of current transformer is expressed?

Watt Ampere hour Volt ampere Watt hour