Alternator MCQ with Answers

Alternator MCQ with Answers

1) Which rule is used to find the direction of induced emf in an alternator?

Answer is:

Fleming's right hand rule

Explanation:

.

2) How alternators are rated?

Answer is:

KVA

3) What is the supply frequency of an alternator having 6 poles runs at 1000 rpm?

Answer is:

50 Hz

4) Calculate the speed of an alternator having 2 poles at a frequency of 50 Hz?

Answer is:

3000 rpm

5) What condition the lamps become dark in dark lamp method of parallel operation of two alternators?

Answer is:

Voltage and frequency are equal