DGVCL Exam Paper (11-12-2011)
The purpose of interpoles in DC machines is to nullify

The reactance voltage
The demagnetizing effect of armature mmf
Both the cross-magnetizing mmf and the reactance voltage
The cross-magnetizing effect of armature mmf

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DGVCL Exam Paper (11-12-2011)
A fuse wire should have

Low specific resistance and low melting point
High specific resistance and high melting point
Low specific resistance and high melting point
High specific resistance and low melting point

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