Alternators MCQ - Electrician (Set-1) with Answers

Alternators MCQ - Electrician (Set-1) with Answers

11) The pitch factor is defined as the ratio of the e.m.fs. of the :

Answer is:

short-pitch coil to full-pitch coil

12) The rotor of a salient pole alternator has 12 poles. The number of cycles of e.m.f. in one revolution will be :\n(Hint: Two-pole alternator will generate one cycle of e.m.f. in one rotation)

Answer is:

6

13) In large sized alternators, dampers are used to :

Answer is:

increase stability

14) The number of electrical degrees which passes through in one revolution of a 6-pole alternator is :

Answer is:

1080

15) The waveform of the e.m.f. generated by an alternator should be :

Answer is:

sine wave