THREE PHASE CIRCUIT - Practice Mode

1) What is the angular displacement of 3 phase voltages?

120 electrical degrees 90 electrical degrees 180 electrical degrees 360 electrical degrees

Correct Answer: 120 electrical degrees

2) What is the line voltage if phase voltage is 415V in delta connection?

415V 400V 240V 138V

Correct Answer: 415V

3) Which is the type of load when the phase currents of a 3 phase circuit are same?

Balanced load Unbalanced load No load Full load

Correct Answer: Balanced load

4) Which is the type of load if the phase currents of a 3 phase system are different?

Full load No load Balanced load Unbalanced load

Correct Answer: Unbalanced load

5) How many number of watt meter to be used for balanced 3 phase power measurement?

One Two Three Four

Correct Answer: One

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