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- Subject
- Rectifiers and Converterselectrical-engineering-mcqs › rectifiers-and-converters
- Published
- 16 Dec 2018
- Last updated
- 28 May 2026
Explanation
To initiate a cathode spot in a mercury arc rectifier, an auxiliary electrode is utilized. Heating the anode, evacuating the tube, or maintaining low mercury vapor pressure do not directly produce the cathode spot.
More Rectifiers and Converters MCQs
Practice related questions from the same subject.
- 1.Which of the following techniques can be employed to transform an AC system into a DC system?
- 2.How can a synchronous converter be initiated for operation?
- 3.Which of the following uses are associated with direct current (D.C.) systems?
- 4.How many slip rings are present in a single-phase rotary converter?
- 5.A rotary converter serves as a combination of which two electrical machines?
- 6.What is the maximum direct current (D.C.) voltage achievable using a motor converter?
- 7.Which device among the following operates with reversible functionality?
- 8.What components does a rotary converter consist of in a single machine?
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