Alternators MCQ - Electrician (Set-1) with Answers

Alternators MCQ - Electrician (Set-1) with Answers

21) A 50 Hz alternator will run at the greatest possible speed if it is wound for _____ poles

Answer is:

2

22) When speed of an alternator is changed from 3600 R.P.M. to 1800 R.P.M., the generated e.m.f. per phase will become

Answer is:

one-half

23) The power factor of an alternator is determined by its

Answer is:

load

24) For proper parallel operation, polyphase alternators must have the same

Answer is:

voltage rating

25) The number of poles in turbo alternator is

Answer is:

2

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