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Rectifiers and Converters

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

shell bottom
mercury pool
anode
cathode

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

Six
Four
Two
Three

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Rectifiers and Converters
In a rotary converter I2R losses as compared to a D.C. generator of the same size will be

None of the listed here
Less
Remain same
More

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Rectifiers and Converters
Which of the following metals is generally manufactured by electrolysis process?

Zinc
Load
Copper
Aluminium

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

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

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Rectifiers and Converters
A commutating rectifier consists of commutator driven by

A D.C. series motor
An induction motor
A D.C. shunt motor
A synchronous motor

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