AC GENERATOR - Practice Mode

1) What method is used for parallel operation of alternator?

Dark and bright lamp method Ward - leonald method Over excitation method Under excitation method

Correct Answer: Dark and bright lamp method

2) How the 3 lamps glow under parallel operation of alternators in bright lamp method?

All 3 lamps in dark All 3 lamps in bright Two lamps bright and one lamp dark One lamp bright and two lamps dark

Correct Answer: Two lamps bright and one lamp dark

3) How many lamps are required for parallel operation of two 3 phase alternators?

3 6 8 10

Correct Answer: 6

4) What is the name of the instrument used to indicate the correct time for parallel operation of alternators?

Megger Phase sequence meter Synchroscope Centre zero ammeter

Correct Answer: Synchroscope

5) Which instrument is the special form of power factor method?

Synchroscope Frequency meter Wattmeter Phase sequence meter

Correct Answer: Synchroscope

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