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Rectifiers and Converters

Rectifiers and Converters
In a glass bulb mercury arc rectifier the maximum current rating is restricted to

1500 A
2000 A
500 A
200 A

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Rectifiers and Converters
Which of the following are the applications of D.C. system?

Electrolytic and electro-chemical processes
All of the listed here
Arc welding
Battery charging work

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Rectifiers and Converters
The efficiency of the copper oxide rectifier seldom exceeds

85 to 90%
90 to 95%
80 to 85%
65 to 75%

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Rectifiers and Converters
Copper oxide rectifier is usually designed not to operate above

30°C
75°C
45°C
55°C

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Rectifiers and Converters
In a mercury arc rectifier, the anode is usually made of

graphite
copper
aluminium
silver

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Rectifiers and Converters
Which of the following is reversible in action?

Rotary converter
All of the listed here
Motor generator set
Motor converter

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MORE MCQ ON Rectifiers and Converters

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