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Rectifiers and Converters

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

Three
Four
Six
Two

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Rectifiers and Converters
A rotary converter combines the function of

Both of the listed here
an induction motor and a D.C. generator
None of the listed here
a synchronous motor and a D.C. generator

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Rectifiers and Converters
Which of the following is the loss within the mercury arc rectifier chamber?

Voltage drop in arc
All of the listed here
Voltage drop at the anode
Voltage drop at the cathode

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Rectifiers and Converters
If cathode and anode connections in a mercury arc rectifier are inter changed

Internal losses will be reduced
Both ion and electron streams will move in the same direction
The rectifier will operate at reduced efficiency
The rectifier will not operate

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Rectifiers and Converters
A rotary converter is a single machine with

one armature and two fields
two armatures and one field
one armature and one field
none of the listed here

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Rectifiers and Converters
The ignited or auxiliary anode in mercury arc rectifier is made of

Aluminium
Graphite
Copper
Boron carbide

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