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Rectifiers and Converters

Rectifiers and Converters
In a mercury arc rectifier positive ions are attracted towards

anode
cathode
shell bottom
mercury pool

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Rectifiers and Converters
The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following

anode drop and cathode drop
cathode drop and arc drop
anode drop and arc drop
anode drop, cathode drop and arc drop

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Rectifiers and Converters
In a single phase rotary converter the number of slip rings will be

Three
Six
Two
Four

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Rectifiers and Converters
Which of the following methods may be used to convert A.C. system to D.C.?

All of the listed here
Rectifiers
Motor converters
Rotary converters

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Rectifiers and Converters
The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ?

Both of the listed here
They are mechanically strong
They do not require any voltage for filament heating
None of the listed here

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

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

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